Class of BACTERIA with diverse morphological properties. Strains of Actinobacteria show greater than 80% 16S rDNA/rRNA sequence similarity among each other and also the presence of certain signature nucleotides. (Stackebrandt E. et al, Int. J. Syst. Bacteriol. (1997) 47:479-491)
Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.
A phylum of bacteria consisting of the purple bacteria and their relatives which form a branch of the eubacterial tree. This group of predominantly gram-negative bacteria is classified based on homology of equivalent nucleotide sequences of 16S ribosomal RNA or by hybridization of ribosomal RNA or DNA with 16S and 23S ribosomal RNA.
The relationships of groups of organisms as reflected by their genetic makeup.
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.
The variety of all native living organisms and their various forms and interrelationships.
A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.
The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms.
Deoxyribonucleic acid that makes up the genetic material of bacteria.
A collective genome representative of the many organisms, primarily microorganisms, existing in a community.
Water containing no significant amounts of salts, such as water from RIVERS and LAKES.
A family of gram-positive bacteria found in dairy products or in the intestinal tracts of animals.
The spectrum of different living organisms inhabiting a particular region, habitat, or biotope.
A genus of SPONGES in the family Petrosiidae, characterized by an ectosomal triangular or polygonal reticulation of spicule tracts or single spicules.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
A physiologically diverse phylum of acidophilic, gram-negative bacteria found in a wide variety of habitats, but particularly abundant in soils and sediments.
Genes, found in both prokaryotes and eukaryotes, which are transcribed to produce the RNA which is incorporated into RIBOSOMES. Prokaryotic rRNA genes are usually found in OPERONS dispersed throughout the GENOME, whereas eukaryotic rRNA genes are clustered, multicistronic transcriptional units.
An order of gram-positive, primarily aerobic BACTERIA that tend to form branching filaments.
A phylum of bacteria comprised of three classes: Bacteroides, Flavobacteria, and Sphingobacteria.
A class in the phylum PROTEOBACTERIA comprised of chemoheterotrophs and chemoautotrophs which derive nutrients from decomposition of organic material.
A family of bacteria ranging from free living and saprophytic to parasitic and pathogenic forms.
A phylum of anaerobic, gram-negative bacteria with a chemoorganotrophic heterotrophic metabolism. They are resident flora of the OROPHARYNX.
A family of soil bacteria. It also includes some parasitic forms.
A mass of organic or inorganic solid fragmented material, or the solid fragment itself, that comes from the weathering of rock and is carried by, suspended in, or dropped by air, water, or ice. It refers also to a mass that is accumulated by any other natural agent and that forms in layers on the earth's surface, such as sand, gravel, silt, mud, fill, or loess. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1689)
Community of tiny aquatic PLANTS and ANIMALS, and photosynthetic BACTERIA, that are either free-floating or suspended in the water, with little or no power of locomotion. They are divided into PHYTOPLANKTON and ZOOPLANKTON.
Genus of BACTERIA in the family Frankiaceae. They are nitrogen-fixing root-nodule symbionts of many species of woody dicotyledonous plants.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
A phylum of gram-negative bacteria containing seven class-level groups from a wide variety of environments. Most members are chemoheterotrophs.
Electrophoresis in which various denaturant gradients are used to induce nucleic acids to melt at various stages resulting in separation of molecules based on small sequence differences including SNPs. The denaturants used include heat, formamide, and urea.
The full collection of microbes (bacteria, fungi, virus, etc.) that naturally exist within a particular biological niche such as an organism, soil, a body of water, etc.
The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.
The genetic complement of a BACTERIA as represented in its DNA.
One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.
The processes by which organisms utilize organic substances as their nutrient sources. Contrasts with AUTOTROPHIC PROCESSES which make use of simple inorganic substances as the nutrient supply source. Heterotrophs can be either chemoheterotrophs (or chemoorganotrophs) which also require organic substances such as glucose for their primary metabolic energy requirements, or photoheterotrophs (or photoorganotrophs) which derive their primary energy requirements from light. Depending on environmental conditions some organisms can switch between different nutritional modes (AUTOTROPHY; heterotrophy; chemotrophy; or PHOTOTROPHY) to utilize different sources to meet their nutrients and energy requirements.
The immediate physical zone surrounding plant roots that include the plant roots. It is an area of intense and complex biological activity involving plants, microorganisms, other soil organisms, and the soil.
The genomic analysis of assemblages of organisms.
The salinated water of OCEANS AND SEAS that provides habitat for marine organisms.
A soil-dwelling actinomycete with a complex lifecycle involving mycelial growth and spore formation. It is involved in the production of a number of medically important ANTIBIOTICS.
A set of statistical methods used to group variables or observations into strongly inter-related subgroups. In epidemiology, it may be used to analyze a closely grouped series of events or cases of disease or other health-related phenomenon with well-defined distribution patterns in relation to time or place or both.
The phylum of sponges which are sessile, suspension-feeding, multicellular animals that utilize flagellated cells called choanocytes to circulate water. Most are hermaphroditic. They are probably an early evolutionary side branch that gave rise to no other group of animals. Except for about 150 freshwater species, sponges are marine animals. They are a source of ALKALOIDS; STEROLS; and other complex molecules useful in medicine and biological research.
A genus of gram-positive BACTERIA in the family Gordoniaceae, isolated from soil and from sputa of patients with chest disorders. It is also used for biotransformation of natural products.
A group of different species of microorganisms that act together as a community.
Physiological processes and properties of BACTERIA.
Tracts of land completely surrounded by water.
The relationship between two different species of organisms that are interdependent; each gains benefits from the other or a relationship between different species where both of the organisms in question benefit from the presence of the other.
Generally refers to the digestive structures stretching from the MOUTH to ANUS, but does not include the accessory glandular organs (LIVER; BILIARY TRACT; PANCREAS).
A family of gram negative, aerobic, non-sporeforming, rod-shaped bacteria.
Phylum of green nonsulfur bacteria including the family Chloroflexaceae, among others.
A group of the proteobacteria comprised of facultatively anaerobic and fermentative gram-negative bacteria.
Insects of the family Formicidae, very common and widespread, probably the most successful of all the insect groups. All ants are social insects, and most colonies contain three castes, queens, males, and workers. Their habits are often very elaborate and a great many studies have been made of ant behavior. Ants produce a number of secretions that function in offense, defense, and communication. (From Borror, et al., An Introduction to the Study of Insects, 4th ed, p676)
Refuse liquid or waste matter carried off by sewers.
Ribonucleic acid in bacteria having regulatory and catalytic roles as well as involvement in protein synthesis.
Bacteria which retain the crystal violet stain when treated by Gram's method.
Substances which pollute the soil. Use for soil pollutants in general or for which there is no specific heading.
Proteins found in any species of bacterium.
The Arctic Ocean and the lands in it and adjacent to it. It includes Point Barrow, Alaska, most of the Franklin District in Canada, two thirds of Greenland, Svalbard, Franz Josef Land, Lapland, Novaya Zemlya, and Northern Siberia. (Webster's New Geographical Dictionary, 1988, p66)
Organisms that live in water.
A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies.
A class in the phylum PROTEOBACTERIA comprised mostly of two major phenotypes: purple non-sulfur bacteria and aerobic bacteriochlorophyll-containing bacteria.
The relative amounts of the PURINES and PYRIMIDINES in a nucleic acid.
The study of microorganisms living in a variety of environments (air, soil, water, etc.) and their pathogenic relationship to other organisms including man.
Inland bodies of still or slowly moving FRESH WATER or salt water, larger than a pond, and supplied by RIVERS and streams.
The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.
Infections with bacteria of the order ACTINOMYCETALES.
A genus of bacteria that form a nonfragmented aerial mycelium. Many species have been identified with some being pathogenic. This genus is responsible for producing a majority of the ANTI-BACTERIAL AGENTS of practical value.
Contaminated water generated as a waste product of human activity.
Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main stem and numerous branches.
Any of the processes by which cytoplasmic or intercellular factors influence the differential control of gene action in bacteria.
Deoxyribonucleic acid that makes up the genetic material of archaea.
One of the three domains of life (the others being BACTERIA and ARCHAEA), also called Eukarya. These are organisms whose cells are enclosed in membranes and possess a nucleus. They comprise almost all multicellular and many unicellular organisms, and are traditionally divided into groups (sometimes called kingdoms) including ANIMALS; PLANTS; FUNGI; and various algae and other taxa that were previously part of the old kingdom Protista.
A natural association between organisms that is detrimental to at least one of them. This often refers to the production of chemicals by one microorganism that is harmful to another.

Kocuria palustris sp. nov. and Kocuria rhizophila sp. nov., isolated from the rhizoplane of the narrow-leaved cattail (Typha angustifolia). (1/597)

Two Gram-positive, aerobic spherical actinobacteria were isolated from the rhizoplane of narrow-leaved cattail (Typha angustifolia) collected from a floating mat in the Soroksar tributary of the Danube river, Hungary. Sequence comparisons of the 16S rDNA indicated these isolates to be phylogenetic neighbours of members of the genus Kocuria, family Micrococcaceae, in which they represent two novel lineages. The phylogenetic distinctness of the two organisms TA68T and TAGA27T was supported by DNA-DNA similarity values of less than 55% between each other and with the type strains of Kocuria rosea, Kocuria kristinae and Kocuria varians. Chemotaxonomic properties supported the placement of the two isolates in the genus Kocuria. The diagnostic diamino acid of the cell-wall peptidoglycan is lysine, the interpeptide bridge is composed of three alanine residues. Predominant menaquinone was MK-7(H2). The fatty acid pattern represents the straight-chain saturated iso-anteiso type. Main fatty acid was anteiso-C15:0. The phospholipids are diphosphatidylglycerol, phosphatidylglycerol and an unknown component. The DNA base composition of strains TA68T and TAGA27T is 69.4 and 69.6 mol% G+C, respectively. Genotypic, morphological and physiological characteristics are used to describe two new species of Kocuria, for which we propose the names Kocuria palustris, type strain DSM 11925T and Kocuria rhizophila, type strain DSM 11926T.  (+info)

Polyamine profiles within genera of the class Actinobacteria with LL-diaminopimelic acid in the peptidoglycan. (2/597)

Polyamine patterns of coryne- and nocardioform representatives of the class Actinobacteria with LL-diaminopimelic acid in the peptidoglycan, comprising strains of the genera Aeromicrobium, Nocardioides, Intrasporangium, Terrabacter, Terracoccus, Propioniferax, Friedmanniella, Microlunatus, Luteococcus and Sporichthya, were analysed. The different polyamine patterns were in good agreement with the phylogenetic heterogeneity within this group of actinomycetes. Strains of the closely related genera Nocardioides and Aeromicrobium were characterized by the presence of cadaverine. The second cluster, consisting of the type strains of the species Friedmanniella antarctica, Propioniferax innocua, Microlunatus phosphovorus and Luteococcus japonicus, displayed as a common feature the presence of the two predominant compounds spermidine and spermine. The presence of putrescine was common to the type strains of the species Intrasporangium calvum, Terrabacter tumescens and Terracoccus luteus. Sporichthya polymorpha, which is a representative of a separate line of descent, displayed spermidine as the predominant polyamine. These data indicate that polyamine patterns are suitable for the classification of actinomycetes with LL-diaminopimelic acid in the peptidoglycan.  (+info)

Whipple's arthritis: direct detection of Tropheryma whippelii in synovial fluid and tissue. (3/597)

We describe 2 patients presenting with polyarthritis in whom the synovial fluid (1 patient) or synovial tissue (1 patient) was positive for Tropheryma whippelii, the Whipple's disease-associated bacillus, when examined by polymerase chain reaction (PCR) and DNA sequencing. Histopathologic findings were consistent with articular Whipple's disease in the synovial fluid of 1 patient and the synovial tissue of the other. In both patients, bowel mucosal specimens were negative for Whipple's disease features by histologic and PCR methods. One patient was positive for T whippelii in the peripheral blood. Control synovial fluid specimens from 40 patients with other arthritides, including Lyme arthritis, were negative. Sequencing of a 284-basepair region of the 16S ribosomal RNA gene confirmed that the sequence is closely related to the known T whippelii sequence. Both patients responded to treatment with antibiotics.  (+info)

Characterization of a novel Atopobium isolate from the human vagina: description of Atopobium vaginae sp. nov. (4/597)

Phenotypic and phylogenetic studies were performed on a hitherto undescribed micro-organism isolated from the human vagina. Comparative 16S rRNA gene sequencing studies demonstrated that the unknown strain constituted a new subline within the genus Atopobium. The unknown bacterium was readily distinguished from other Atopobium species by biochemical tests and electrophoretic analysis of whole-cell proteins. Based on phylogenetic and phenotypic evidence, it is proposed that the unknown bacterium be classified as Atopobium vaginae sp. nov. The type strain of Atopobium vaginae is CCUG 38953T.  (+info)

Detection of three different types of 'Tropheryma whippelii' directly from clinical specimens by sequencing, single-strand conformation polymorphism (SSCP) analysis and type-specific PCR of their 16S-23S ribosomal intergenic spacer region. (5/597)

The 16S-23S rDNA intergenic spacer region of organisms identical with or closely related to 'Tropheryma whippelii', the uncultivated causative agent of Whipple's disease, was analysed directly from 38 clinical specimens of 28 patients using a specific nested PCR followed by direct sequencing. As compared to the reference sequence in public databases, two novel 'T. whippelii' spacer types were recognized. In the absence of DNA-DNA hybridization data it is uncertain whether the three types found represent subtypes of a single species or three different but closely related species. Methods were developed to detect all three variants by single-strand conformation polymorphism analysis and by type-specific PCR assays, thus allowing the screening of large numbers of specimens. Further studies may provide a clue to the possible associations between the type of infecting strain and the various clinical presentations of Whipple's disease.  (+info)

Evaluation of a specific nested PCR targeting domain III of the 23S rRNA gene of "Tropheryma whippelii" and proposal of a classification system for its molecular variants. (6/597)

"Tropheryma whippelii"-associated infections are usually confirmed histopathologically by using light microscopy. PCR assays targeting the 16S rRNA gene (16S rDNA) of "T. whippelii" are increasingly being applied for this purpose. Compared to microscopic analysis, PCR seems to be more sensitive, as indicated by the fact that several cases of Whipple's disease with negative histopathological findings but positive PCR results have been reported. Considering the lack of pathognomonic clinical features for this disease and the fact that "T. whippelii" DNA has repeatedly been found in patients without clinical Whipple's disease, such PCR results should be confirmed by additional tests. We have, therefore, evaluated a "T. whippelii"-specific nested PCR targeting domain III of the 23S rDNA with 41 clinical specimens known to contain "T. whippelii" 16S rDNA. All of these specimens were also positive for "T. whippelii" 23S rDNA. The specificity of the test was shown by sequencing of the amplicons and by the absence of amplicons in 38 negative controls. We consider this PCR test to be a suitable tool for confirming the presence of "T. whippelii" DNA in specimens with inconclusive histopathological findings. The information derived from sequencing of the partial "T. whippelii" 23S rDNA was then combined with our recent data of the 16S-23S rDNA spacer region of this organism. Overall, four different rDNA types are recognized in our proposed classification system for molecular variants of "T. whippelii." This preliminary scheme may provide a basis for further epidemiological and clinical studies with "T. whippelii" and associated diseases.  (+info)

Identification of polyphosphate-accumulating organisms and design of 16S rRNA-directed probes for their detection and quantitation. (7/597)

Laboratory-scale sequencing batch reactors (SBRs) as models for activated sludge processes were used to study enhanced biological phosphorus removal (EBPR) from wastewater. Enrichment for polyphosphate-accumulating organisms (PAOs) was achieved essentially by increasing the phosphorus concentration in the influent to the SBRs. Fluorescence in situ hybridization (FISH) using domain-, division-, and subdivision-level probes was used to assess the proportions of microorganisms in the sludges. The A sludge, a high-performance P-removing sludge containing 15.1% P in the biomass, was comprised of large clusters of polyphosphate-containing coccobacilli. By FISH, >80% of the A sludge bacteria were beta-2 Proteobacteria arranged in clusters of coccobacilli, strongly suggesting that this group contains a PAO responsible for EBPR. The second dominant group in the A sludge was the Actinobacteria. Clone libraries of PCR-amplified bacterial 16S rRNA genes from three high-performance P-removing sludges were prepared, and clones belonging to the beta-2 Proteobacteria were fully sequenced. A distinctive group of clones (sharing >/=98% sequence identity) related to Rhodocyclus spp. (94 to 97% identity) and Propionibacter pelophilus (95 to 96% identity) was identified as the most likely candidate PAOs. Three probes specific for the highly related candidate PAO group were designed from the sequence data. All three probes specifically bound to the morphologically distinctive clusters of PAOs in the A sludge, exactly coinciding with the beta-2 Proteobacteria probe. Sequential FISH and polyphosphate staining of EBPR sludges clearly demonstrated that PAO probe-binding cells contained polyphosphate. Subsequent PAO probe analyses of a number of sludges with various P removal capacities indicated a strong positive correlation between P removal from the wastewater as determined by sludge P content and number of PAO probe-binding cells. We conclude therefore that an important group of PAOs in EBPR sludges are bacteria closely related to Rhodocyclus and Propionibacter.  (+info)

Cultivation of the bacillus of Whipple's disease. (8/597)

BACKGROUND: Whipple's disease is a systemic bacterial infection, but to date no isolate of the bacterium has been established in subculture, and no strain of this bacterium has been available for study. METHODS: Using specimens from the aortic [corrected] valve of a patient with endocarditis due to Whipple's disease, we isolated and propagated a bacterium by inoculation in a human fibroblast cell line (HEL) with the use of a shell-vial assay. We tested serum samples from our patient, other patients with Whipple's disease, and control subjects for the presence of antibodies to this bacterium. RESULTS: The bacterium of Whipple's disease was grown successfully in HEL cells, and we established subcultures of the isolate. Indirect immunofluorescence assays showed that the patient's serum reacted specifically against the bacterium. Seven of 9 serum samples from patients with Whipple's disease had IgM antibody titers of 1:50 or more, as compared with 3 of 40 samples from the control subjects (P<0.001). Polyclonal antibodies against the bacterium were generated by inoculation of the microorganism into mice and were used to detect bacteria in the excised cardiac tissue from our patient on immunohistochemical analysis. The 16S ribosomal RNA gene of the cultured bacterium was identical to the sequence for Tropheryma whippelii identified previously in tissue samples from patients with Whipple's disease. The strain we have grown is available in the French National Collection. CONCLUSIONS: We cultivated the bacterium of Whipple's disease, detected specific antibodies in tissue from the source patient, and generated specific antibodies in mice to be used in the immunodetection of the microorganism in tissues. The development of a serologic test for Whipple's disease may now be possible.  (+info)

Rubrobacter xylanophilus is a thermophilic species of bacteria. It is slightly halotolerant, short rod- and coccus-shaped and gram-positive, with type strain PRD-1T. It is the only true radiation resistant thermopile. It can degrade xylan and hemicellulose. The first strain of the genus Rubrobacter was isolated from gamma-irradiated hot spring water samples by Yoshinaka. This organism was found to be extremely gamma-radiation resistant, with a higher shoulder dose than the canonical radiation resistant species of the genus Deinococcus. The organism stained Gram-positive and was slightly thermophilic with an optimum growth temperature of about 45°C. Carreto, L.; Moore, E.; Nobre, M. F.; Wait, R.; Riley, P. W.; Sharp, R. J.; Da Costa, M. S. (1996). Rubrobacter xylanophilus sp. nov., a New Thermophilic Species Isolated from a Thermally Polluted Effluent. International Journal of Systematic Bacteriology. 46 (2): 460-465. doi:10.1099/00207713-46-2-460. ISSN 0020-7713. Home - Rubrobacter ...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
Marine-derived Actinobacteria are a source of a broad variety of secondary metabolites with diverse biological activities, such as antibiotics and antitumorals; many of which have been developed for clinical use. Rare Actinobacteria represent an untapped source of new bioactive compounds that have been scarcely recognized. In this study, rare Actinobacteria from marine sediments were isolated from the Valparaíso bay, Chile, and their potential to produce antibacterial compounds was evaluated. Different culture conditions and selective media that select the growth of Actinobacteria were used leading to the isolation of 68 bacterial strains. Comparative analysis of the 16S rRNA gene sequences led to identifying isolates that belong to the phylum Actinobacteria with genetic affiliations to 17 genera: Aeromicrobium, Agrococcus, Arthrobacter, Brachybacterium, Corynebacterium, Dietzia, Flaviflexus, Gordonia, Isoptericola, Janibacter, Microbacterium, Mycobacterium, Ornithinimicrobium, Pseudonocardia,
The taxonomic composition of picoplankton communities profoundly differs in freshwater and marine systems. Cultivation-independent molecular approaches have demonstrated that bacteria from large phylogenetic lineages of typical freshwater microbes, e.g., the β-subdivision of the proteobacteria, are virtually absent in the marine picoplankton (15, 23). For other bacterial lineages the evidence is less conclusive. Comparative analysis of 16S rDNA genes indicate that uncultured members of the class Actinobacteria are ubiquitous in lakes of various trophic state, size or geographic location (16, 36), but actinobacterial sequence types are also known from marine systems (31).. A direct microscopic visualization of freshwater Bacteria by fluorescence in situ hybridization (FISH) with rRNA-targeted oligonucleotide probes is still difficult, and frequently only a low fraction of all picoplankton cells (,50%) can be visualized by FISH (5, 10, 15, 19). We hypothesize that this may be due to high ...
Bacterial genome sequences consistently contain many more biosynthetic gene clusters encoding specialized metabolites than predicted by the compounds discovered from the respective strains. One hypothesis invoked to explain the cryptic nature of these gene clusters is that standard laboratory conditions do not provide the environmental cues needed to trigger gene expression. A potential source of such cues is other members of the bacterial community, which are logical targets for competitive interactions. In this study, we examined the effects of such interactions on specialized metabolism in the marine actinomycete Salinispora tropica. The results show that antibiotic activities and the concentration of some small molecules increase in the presence of co-occurring bacterial strains relative to monocultures. Some increases in antibiotic activity could be linked to nutrient depletion by the competitor as opposed to the production of a chemical cue. Other increases were correlated with the production of
Eggerthella lenta is an anaerobic, non-sporulating, gram positive bacillus in the Coriobacteriaceae family. The aim of this study was to describe the clinical features of the authors cases of E. Lenta bacteraemia, and further define their microbiological characteristics using modern microbiological techniques.
Most Actinobacteria of medical or economic significance are in subclass Actinobacteridae, and belong to the order Actinomycetales. While many of these cause disease in humans, Streptomyces is notable as a source of antibiotics. Of those Actinobacteria not in the Actinomycetales, Gardnerella is one of the most researched. Classification of Gardnerella is controversial, and MeSH catalogues it as both a Gram-positive and Gram-negative organism.[9]. Actinobacteria, especially Streptomyces spp., are recognized as the producers of many bioactive metabolites that are useful to humans in medicine, such as antibacterials,[10] antifungals,[11] antivirals, antithrombotics, immunomodifiers, antitumor drugs, and enzyme inhibitors; and in agriculture, including insecticides, herbicides, fungicides, and growth-promoting substances for plants and animals.[12][13] Actinobacteria-derived antibiotics that are important in medicine include aminoglycosides, anthracyclines, chloramphenicol, macrolide, tetracyclines, ...
Extreme and unusual ecosystems such as isolated ancient caves are considered as potential tools for the discovery of novel natural products with biological activities. Actinobacteria that inhabit these unusual ecosystems are examined as a promising source for the development of new drugs. In this study we focused on the preliminary estimation of fatty acid composition and antibacterial properties of culturable actinobacteria isolated from water surface of underground lakes located in Badzheyskaya and Okhotnichya caves in Siberia. Here we present isolation of 17 strains of actinobacteria that belong to the Streptomyces, Nocardia and Nocardiopsis genera. Using assays for antibacterial and antifungal activities, we found that a number of strains belonging to the genus Streptomyces isolated from Badzheyskaya cave demonstrated inhibition activity against bacteria and fungi. It was shown that representatives of the genera Nocardia and Nocardiopsis isolated from Okhotnichya cave did not demonstrate any tested
Eggerthella lenta ATCC ® 43055™ Designation: MSMC 77-67 TypeStrain=False Application: Quality control strain Susceptibility testing
Eggerthella lenta ATCC ® 43055™ Designation: MSMC 77-67 TypeStrain=False Application: Quality control strain Susceptibility testing
ID A0A0J0UT43_9ACTN Unreviewed; 433 AA. AC A0A0J0UT43; DT 14-OCT-2015, integrated into UniProtKB/TrEMBL. DT 14-OCT-2015, sequence version 1. DT 22-NOV-2017, entry version 10. DE RecName: Full=M18 family aminopeptidase {ECO:0000256,RuleBase:RU004387}; DE EC=3.4.11.- {ECO:0000256,RuleBase:RU004387}; GN ORFNames=IMCC26207_110292 {ECO:0000313,EMBL:KLR60046.1}; OS Actinobacteria bacterium IMCC26207. OC Bacteria; Actinobacteria. OX NCBI_TaxID=1641811 {ECO:0000313,EMBL:KLR60046.1, ECO:0000313,Proteomes:UP000036180}; RN [1] {ECO:0000313,EMBL:KLR60046.1, ECO:0000313,Proteomes:UP000036180} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=IMCC26207 {ECO:0000313,EMBL:KLR60046.1, RC ECO:0000313,Proteomes:UP000036180}; RA Kim S., Cho J.-C.; RT Genome sequence of freshwater Actinobacteria.; RL Submitted (MAY-2015) to the EMBL/GenBank/DDBJ databases. CC -!- COFACTOR: CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; CC Evidence={ECO:0000256,RuleBase:RU004387}; CC -!- SIMILARITY: Belongs to the peptidase M18 ...
Summary: A 16S rRNA-based molecular ecological study was performed to search for dominant bacterial sequences in Drentse A grassland soils (The Netherlands). In the first step, a library of 165 clones was generated from PCR-amplified 16S rDNA. By sequence comparison, clone DA079 and two other identical clones could be affiliated to a group of recently described uncultured Actinobacteria. This group contained 16S rDNA clone sequences obtained from different environments across the world. To determine whether such uncultured organisms were part of the physiologically active population in the soil, ribosomes were isolated from the environment and 16S rRNA was partially amplified via RT-PCR using conserved primers for members of the domain Bacteria. Subsequent sequence-specific separation by temperature-gradient gel electrophoresis (TGGE) generated fingerprints of the amplicons. Such community fingerprints were compared with the TGGE pattern of PCR-amplified rDNA of clone DA079 which was generated with the
Valid publication: DEWHIRST (F.E.), PASTER (B.J.), TZELLAS (N.), COLEMAN (B.), DOWNES (J.), SPRATT (D.A.) and WADE (W.G.): Characterization of novel human oral isolates and cloned 16S rDNA sequences that fall in the family Coriobacteriaceae: description of Olsenella gen. nov., reclassification of Lactobacillus uli as Olsenella uli comb. nov. and description of Olsenella profusa sp. nov. Int. J. Syst. Evol. Microbiol., 2001, 51, 1797-1804 ...
Acidimicrobium ferrooxidans gen. nov., sp. nov.: mixed-culture ferrous iron oxidation with Sulfobacillus species. Microbiology, 1996, 142, 785-790 ...
Actinomycetes are the most profitable and biotechnologically valued prokaryotes representing the genera consisting of Streptomyces, Arthrobacter, Actinomyces, Cornyebacterium, Micrococcus, Micromonospora and other diverse species of microorganisms. Actinomycetes represent a group of one of the most powerful secondary metabolite producers which possess a wide range of biological activities. Streptomyces, an important genus under actinomycetes, alone serves as the huge producer of a number of biologically active molecules. This genus possesses a huge potential of synthesizing various different and novel active metabolites. Due to the gradual reduction of the chances of isolation of novel compounds within Streptomyces coming from terrestrial environs resulting in the increase of resistant pathogenic microorganisms, marine actinomycetesmay form a platform for novel drug synthesis, which in-turn may form an extraordinary tool for combating a wide range of resistant microbes. The role of marine ...
ID A0A076MGV6_AMYME Unreviewed; 538 AA. AC A0A076MGV6; DT 29-OCT-2014, integrated into UniProtKB/TrEMBL. DT 29-OCT-2014, sequence version 1. DT 25-OCT-2017, entry version 27. DE RecName: Full=Chromosomal replication initiator protein DnaA {ECO:0000256,HAMAP-Rule:MF_00377, ECO:0000256,RuleBase:RU000577}; GN Name=dnaA {ECO:0000256,HAMAP-Rule:MF_00377, GN ECO:0000313,EMBL:AIJ20093.1}; GN ORFNames=AMETH_0001 {ECO:0000313,EMBL:AIJ20093.1}; OS Amycolatopsis methanolica 239. OC Bacteria; Actinobacteria; Pseudonocardiales; Pseudonocardiaceae; OC Amycolatopsis. OX NCBI_TaxID=1068978 {ECO:0000313,EMBL:AIJ20093.1, ECO:0000313,Proteomes:UP000062973}; RN [1] {ECO:0000313,EMBL:AIJ20093.1, ECO:0000313,Proteomes:UP000062973} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=239 {ECO:0000313,EMBL:AIJ20093.1, RC ECO:0000313,Proteomes:UP000062973}; RA Tang B.; RT Whole Genome Sequence of the Amycolatopsis methanolica 239.; RL Submitted (JUL-2014) to the EMBL/GenBank/DDBJ databases. CC -!- FUNCTION: ...
TY - JOUR. T1 - Regulation of specialised metabolites in Actinobacteria - expanding the paradigms. AU - Hoskisson, Paul A. AU - Fernández-Martínez, Lorena T.. N1 - © 2018 Society for Applied Microbiology and John Wiley & Sons Ltd.. PY - 2018/4/6. Y1 - 2018/4/6. N2 - The increase in availability of actinobacterial whole genome sequences has revealed huge numbers of specialised metabolite biosynthetic gene clusters, encoding a range of bioactive molecules such as antibiotics, antifungals, immunosuppressives and anticancer agents. Yet the majority of these clusters are not expressed under standard laboratory conditions in rich media conditions. Emerging data from studies of specialised metabolite biosynthesis suggest that the diversity of regulatory mechanisms is greater than previously thought and these act at multiple levels, through a range of signals such as nutrient limitation, intercellular signalling and competition with other organisms. Understanding the regulation and environmental cues ...
The Antarctic represents a largely untapped source for isolation of new microorganisms with potential to produce bioactive natural products. Actinomycetes are of special interest among such microorganisms as they are known to produce a large number of natural products, many of which have clinical, pharmaceutical or agricultural applications. We isolated, characterized and classified actinomycetes from soil samples collected from different locations on Signy Island, South Orkney Islands, in the maritime Antarctic. A total of 95 putative actinomycete strains were isolated from eight soil samples using eight types of selective isolation media. The strains were dereplicated into 16 groups based on morphology and Amplified Ribosomal DNA Restriction Analysis (ARDRA) patterns. Analysis of 16S rRNA gene sequences of representatives from each group showed that streptomycetes were the dominant actinomycetes isolated from these soils; however, there were also several strains belonging to diverse and rare ...
Actinomycetes also refers as filamentous Actinobacteria and acts as a connecting link between the bacteria and fungi as it shows resemblance with both. In this article, definition, characteristics, classification and economic importance of Actinomycetes are explained.
Secondary metabolites produced by Actinobacteria of tropical soils represent a largely understudied source of novel molecules with relevant applicatio..
Taxonomic hierarchy of Subdivision Actinobacteria Cavalier-Smith 2002. Display of synonyms, alternative taxonomic positions, references, number of subtaxa, and phylogenetic/bibliographic position can be switched on/off. Subtaxa can be ordered by name or phylogenetic/bibliographic position.
Read Plant Growth Promoting Actinobacteria A New Avenue for Enhancing the Productivity and Soil Fertility of Grain Legumes by with Rakuten Kobo. Global yields of legumes have been relatively stagnant for the last five decades, despite the adoption of conventional a...
Fingerprint Dive into the research topics of Detection and molecular characterization of filamentous actinobacteria and thermoactinomycetes present in water-damaged building materials. Together they form a unique fingerprint. ...
Sigma-Aldrich offers abstracts and full-text articles by [Feng Xie, Shengwang Dai, Jinzhao Shen, Biao Ren, Pei Huang, Qiushui Wang, Xueting Liu, Buchang Zhang, Huanqin Dai, Lixin Zhang].
Other Names: Actinobacteria Actinobacteria Stackebrandt et al. 1997 Actinobacteria Stackebrandt et al. 1997 emend. Nouioui et al. 2018 Actinobacteridae Actinobacteridae Stackebrandt et al. 1997 emend. Zhi et al. 2009 Actinomycetes Actinomycetes Krasilnikov 1949 high G+C Gram-positive bacteria high GC Gram+ High GC gram-positive bacteria Change Display Name to ...
Lineage: cellular organisms; Bacteria; Terrabacteria group; Actinobacteria; Actinobacteria; Bifidobacteriales; Bifidobacteriaceae; ...
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Actinomycetes are interesting as a main producer of secondary metabolites and industrial antibiotics from marine environments. A total of 44 strains of actinomycetes were isolated from Caspian Sea sediments at a depth of 5-10 m. Preliminary screening was done using cross-streak method against 2 gram-positive and 4 gram-negative pathogen bacteria. The most potent strains MN2, ...
RN [1] RM PMID:20675471 RT Unexpected abundance of coenzyme F(420)-dependent enzymes in Mycobacterium tuberculosis and other actinobacteria. RA Selengut JD, Haft DH RL J Bacteriol. 2010 Nov;192(21):5788-98. RN [2] RM PMID:16930487 RT Exopolysaccharide-associated protein sorting in environmental organisms: the PEP-CTERM/EpsH system. Application of a novel phylogenetic profiling heuristic. RA Haft DH, Paulsen IT, Ward N, Selengut JD RL BMC Biol. 2006 Aug 24;4:29 ...
Actinomycetes are gram-positive, free-living, saprophytic bacteria widely distributed in soil, water and colonizing plants showing marked chemical and morphological diversity. They are potential source of many bioactive compounds, which have diverse clinical effects and important applications in human medicine. In the present work, we have studied some of the physiological and biochemical characteristics of 36 actinomycete strains isolated from the shola soils of tropical montane forest; a relatively unexplored biodiversity hotspot. Ability of actinomycetes isolates to ferment and produce acids from various carbohydrate sources such as innositol, mannose, sorbitol, galactose, mannitol, xylose, rhamnose, arabinose, lactose and fructose were studied. Almost all the carbon compounds were utilized by one or other actinomycete isolates. The most preferred carbon sources were found to be xylose (94.44%) followed by fructose and mannose (91.66%). Only 41.76% of the isolates were able to ferment ...
Abstract: Actinomycetes are one of the most important groups that produce useful secondary metabolites. They play a great role in pharmaceutical and industrial uses. The search for antibiotic producing soil actinomycetes to inhibit the growth of pathogenic microorganisms has become widespread due to the need for newer antibiotics. The present work was aimed to isolate soil actinomycetes from pinus tree rhizosphere from Doddabetta, Western Ghats, Tamil Nadu, India. Thirty one actinomycetes were isolated based on heterogeneity and stability in subculturing; they were screened against 5 Gram positive and 7 Gram negative bacteria in an in vitro antagonism assay. In the preliminary screening, out of 31 isolates, 12.09% showed good antagonistic activity; 25.08% showed moderate activity; 19.35% showed weak activity and 41.93% showed no activity against the tested bacteria. Among the isolates tested, DPR20 showed good antibacterial activity against both Gram positive and Gram negative bacteria. The ...
DI-fusion, le Dépôt institutionnel numérique de lULB, est loutil de référencementde la production scientifique de lULB.Linterface de recherche DI-fusion permet de consulter les publications des chercheurs de lULB et les thèses qui y ont été défendues.
This chapter discusses some of the stressors likely to target the cell envelope of Mycobacterium tuberculosis during infection, and the corresponding regulatory elements expressed by the bacterium to counteract this stress. Phylogenetically, M. tuberculosis is a member of the phylum Actinobacteria, which also includes several notable human pathogens, including species of the genera Streptomyces, Corynebacterium, Nocardia, and Rhodococcus. M. tuberculosis is a facultative intracellular pathogen, and its host range is restricted to humans. The bacterium is not normally found free within the environment, so its continued survival within the human population requires that it be transmitted directly from an infected individual with active disease to one that is susceptible to infection. Posttranslational phosphorylation of proteins was traditionally thought to be limited to eukaryotic cells. However, the discovery of two-component signal transduction systems (TCSSs) in bacteria shifted this paradigm to
The composting process is a complex interaction between the waste and the microorganisms within the waste. The microorganisms that carry out this process fall into three groups: bacteria, fungi, and actinomycetes. Actinomycetes are a form of fungi-like bacteria that break down organic matter. The first stage of the biological activity is the consumption of easily available sugars by […]. ...
The composting process is a complex interaction between the waste and the microorganisms within the waste. The microorganisms that carry out this process fall into three groups: bacteria, fungi, and actinomycetes. Actinomycetes are a form of fungi-like bacteria that break down organic matter. The first stage of the biological activity is the consumption of easily available sugars by […]. ...
A new hierarchic classification structure for the taxa between the taxonomic levels of genus and class is Proposed for the actinomycete line of descent as defined by analysis of small subunit (16S) rRNA and genes coding for this molecule (rDNA). While the traditional circumscription of a genus of the actinomycete subphylum is by and large in accord with the 16S rRNA/rDNA-based phylogenetic clustering of these organisms. most of the higher taxa proposed in the past do not take into account the phylogenetic clustering of genera. The rich chemical, morphological and physiological diversity of phylogenetically closely related genera makes the description of families and higher taxa so broad that they become meaningless for the description of the enclosed taxa. Here we present a classification system in which phylogenetically neighboring taxa at the genus level are clustered into families, suborders, orders, subclasses, and a class irrespective of those phenotypec characteristics on which the delineation of
Lineage: cellular organisms; Bacteria; Terrabacteria group; Actinobacteria; Actinobacteria; Pseudonocardiales; Pseudonocardiaceae; Amycolatopsis; Amycolatopsis ...
For a comprehensive guide to actinomycete characterisation see the Compendium of Actinobacteria from Prof. Joachim Wink at the German Collection of Microorganisms & Cell Cultures (DSMZ). This resouce provides protocols for characterising a wide range of features for new isolates, but may also be applicable more broadly for example for phenotyping experiments. The tests include colony morphology, melanin production, salt tolerance, carbon utlilisation and much more. To download the guide please see the link below. DSMZ Compendium of Actinobacteria ...
Methodology/Principal Findings: Here, we report molecular monitoring of the stone-autochthonous microbiota before and at 5, 12 and 30 months after the bio-consolidation treatment (medium/long-term monitoring), employing the well-known molecular strategy of DGGE analyses. Before the bio-consolidation treatment, the bacterial diversity showed the exclusive dominance of Actinobacteria (100%), which decreased in the community (44.2%) after 5 months, and Gamma-proteobacteria (30.24%) and Chloroflexi (25.56%) appeared. After 12 months, Gamma-proteobacteria vanished from the community and Cyanobacteria (22.1%) appeared and remained dominant after thirty months, when the microbiota consisted of Actinobacteria (42.2%) and Cyanobacteria (57.8%) only. Fungal diversity showed that the Ascomycota phylum was dominant before treatment (100%), while, after five months, Basidiomycota (6.38%) appeared on the stone, and vanished again after twelve months. Thirty months after the treatment, the fungal population ...
Atopobium vaginae is a species of bacteria in the genus of Actinobacteria, in the family Coriobacteriaceae. It is a facultative anaerobic, Gram-positive rod-shaped or elliptical coccobacilli found as single elements or in pairs or short chains. It is typically isolated from 80% of women with bacterial vaginosis and it is implicated in treatment failures. Jovita, M. R.; Collins, M. D.; Sjoden, B.; Falsen, E. (1999). Characterization of a novel Atopobium isolate from the human vagina: description of Atopobium vaginae sp. nov. International Journal of Systematic Bacteriology. 49 (4): 1573-1576. doi:10.1099/00207713-49-4-1573. ISSN 0020-7713. PMID 10555338. Mastromarino, Paola; Vitali, Beatrice; Mosca, Luciana (2013). Bacterial vaginosis: a review on clinical trials with probiotics (PDF). New Microbiologica. 36: 229-238. PMID 23912864. Polatti, Franco (2012). Bacterial Vaginosis, Atopobium vaginae and Nifuratel. Current Clinical Pharmacology. 7 (1): 36-40. doi:10.2174/157488412799218824. ISSN ...
A taxonomic study was carried out to clarify the taxonomy of representatives of a group of marine actinomycetes previously designated MAR 1 and considered to belong to the family Micromonosporaceae. The organisms had phenotypic properties consistent with their assignment to this taxon. The strains formed a distinct taxon in the 16S rRNA Micromonosporaceae gene tree and shared a range of phenotypic properties that distinguished them from members of all of the genera with validly published names classified in this family. The name proposed for this novel taxon is Salinispora gen. nov. The genus contains two species recognized using a range of genotypic and phenotypic criteria, including comparative 16S-23S rRNA gene spacer region and DNA-DNA relatedness data. The names proposed for these taxa are Salinispora arenicola sp. nov., the type species, and Salinispora tropica sp. nov.; the type strains of these novel species have been deposited in service culture collections as strain CNH-643T (=ATCC BAA-917T
Looking for online definition of Actinobacteria in the Medical Dictionary? Actinobacteria explanation free. What is Actinobacteria? Meaning of Actinobacteria medical term. What does Actinobacteria mean?
Bioprospecting natural products in marine bacteria from fjord environments are attractive due to their unique geographical features. Although, Actinobacteria are well known for producing a myriad of bioactive compounds, investigations regarding fjord derived marine Actinobacteria are scarce. In this study, the diversity and biotechnological potential of Actinobacteria isolated from marine sediments within the Comau fjord, in Northern Chilean Patagonia, were assessed by culture-based approaches. The 16S rRNA gene sequences revealed that members phylogenetically related to the Micrococcaceae, Derrnabacteraceae. Brevibacteriaceae, Corynebacteriaceae. Microbacteriaceae, Dietziaceae, Nocardiaceae, and Streptomycetaceae families were present at the Comau fjord. A high diversity of cultivable Actinobacteria (10 genera) was retrieved by using only five different isolation media. Four isolates belonging to Arthrobacter, Brevibacterium, Corynebacterium and Kocuria genera showed 16S rRNA gene identity ...
International Journal of Evolutionary Biology is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles in all areas of evolutionary biology.
Colin A. B. Davidson ,cabd2 at hermes.cam.ac.uk, wrote in message news:,9n500j$4hn$1 at pegasus.csx.cam.ac.uk,... , Daniel B. Wheeler ,dwheeler at ipns.com, wrote in message , news:6dafee1b.0109010714.23c083f0 at posting.google.com... , (CUT) , , BTW, the above total may sound overestimated by some. But when such , , things as rusts, smuts, ectomycorrhizae, endomycorrhizae, soil, and , , compost actinomycetes are added, , , Whoah there! , , Sorry to seem a pedant, but the actinomycetes are bacteria, not fungi :-) Ill take your word for it Colin. I have not studied the actinomycetes yet. But they sure sound similar to basidiomycetes and ascomycetes. Then, of course, theres the Termite mushrooms, Termitomyces... Sounds like the same to me. Of course, theres a lot of fungi I dont recognize yet. Thats what happens when you dont get a degree in mycology, I guess. , , ,it doesnt seem an overestimate (at , , least to me) at all. Then you have the newly discovered endophytic , , fungi, found ...
Compared with the actinomycetes in rock corals, the phylogenetic diversity of soft coral-associated culturable actinomycetes is unexplored essentially. their potential in jadomycin synthesizing angucyclines. Under the assistance of useful gene prediction, one jadomycin B analogue (7b, 13-dihydro-7-O-methyl jadomycin B) was discovered in the fermentation broth of sp. stress A5-1. This scholarly study highlights the phylogenetically diverse culturable actinomycetes from the tissue of soft coral sp. as well as the potential of coral-derived actinomycetes in creating aromatic polyketides especially. Introduction Corals are believed as the rainforests from the oceans. Coral-derived natural basic products span an array of chemical substance classes (prostaglandins, diterpenes, alkaloids and steroids) [1] and screen a number of natural actions (antitumor, anti-inflammatory and antibacterial actions) [2], [3], [4], [5]. Actinomycetes are distributed in sea habitats like the ocean surface area broadly, ...
Similarly to their terrestrial relatives, marine microbes are a rich source of bioactive metabolites (antibiotics, antitumor drugs) and enzymes with different applications. For instance, cultivation of a marine actinomycete known as Salinispora tropica yielded a number of novel metabolites, not found before. One of these compounds, salinosporamide A, has antitumor properties and is currently being tested in humans for the treatment of cancer. Sequencing the genome of Salinispora tropica unveiled a number of genes coding for the synthesis of 17 potential metabolites; most of these compounds had not been detected in previous culturing of the microbe. Then, the researchers used the genetic information to guide a new chemical analysis of Salinispora cultures. The analysis uncovered an additional, novel compound (salinilactam), which had a structure corresponding to that deduced from the DNA sequence ...
Reference: EUZÉBY (J.P.) and TINDALL (B.J.): Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision) and designation of appropriate nomenclatural types of classes and subclasses. Request for an Opinion. Int. J. Syst. Evol. Microbiol. 2001, 51, 725-727 ...
Research in my laboratory is focused on understanding the production of natural products from Actinomycetes. Actinomycetes are a wonderful and diverse group of gram positive bacteria present in almost all environments. In particular my research group is interested in the genus Streptomyces because this genus alone is responsible for the production of a high number of clinically relevant specialised metabolites including antibiotics, anti-fungal, antihelminthic and anti-cancer drugs.. By understanding how these medically relevant compounds are made by the producing organism, we can manipulate these biosynthetic pathways and therefore increase their yield. This is essential for industry as in order to undergo clinical trials, biotechnology companies need to be able to obtain high quantities of the purified new drug to be tested.. We also have an interest on how these industrially relevant Streptomyces strains develop in their natural environment. Streptomyces contain an arsenal of specialised ...
In the era where large whole genome bacterial data sets are generated routinely, rapid and accurate molecular systematics is becoming increasingly important. However, 16S ribosomal RNA sequencing does not always offer sufficient resolution to discriminate between closely related genera. The SsgA-like proteins (SALPs) are developmental regulatory proteins in sporulating actinomycete, whereby SsgB actively recruits FtsZ during sporulation-specific cell division. Here we present a novel method to classify actinomycetes, based on the extraordinary way the SsgA and SsgB proteins are conserved. The almost complete conservation of the SsgB amino acid sequence between members of the same genus, and its high divergence even between closely related genera, provides high quality data for the classification of morphologically complex actinomycetes. Our analysis validates Kitasatospora as a sister genus to Streptomyces in the family Streptomycetaceae and suggests that Micromonospora, Salinispora and ...
Bacteria necessitate multiple signal transduction systems to sense the ever-changing environments and mediate the cellular response accordingly. The major bacterial signal transduction systems are one-component system (1CS), two-component system (2CS) and extracytoplasmic function (ECF) σ factor. Compared to 1CSs and 2CSs, ECF σ factors have only been identified much later and therefore the knowledge about their molecular mechanisms and physiological roles is less profound. This thesis mainly focuses on the study of ECF σ factors from the bacterial phyla, Planctomycetes and Actinobacteria., In the first two parts of this study, ECF σ factors from eight planctomycetal genomes and 119 actinobacterial genomes were classified and analyzed in depth. This led to the identification of eight novel ECF groups consisting of 202 protein members from Planctomycetes and 18 novel ECF groups consisting of 427 protein members from Actinobacteria, respectively. Many of these novel ECF groups were found to ...
Construction of a D-valine sensor using D-amino acid oxidase of Rubrobacter xylanophilus, Journal of Technology and Education, 2016/12/01, Katsumi TAKAYAMA, Chisato SAKAMOTO, Shouji TAKAHASHI, Katsumasa ABE, Ayano HIROBE, and Takeji KOSHIGIRI. ...
Researchers found that there was no significant difference between groups for body weight gain, overall caloric intake, body fat, lean mass, or overall adiposity index. Rats that consumed sugar water consumed less of the solid food. As a result of this well-established compensatory behavior in Sprague-Dawley rats, all three sugar groups consumed a significantly lower percentage of energy from fat and protein compared to the control.. The 16s rRNA sequencing of fecal samples taken at post-natal day 80 revealed a distinct clustering pattern when comparing the sugar to non-sugar fed rats. Interestingly, when comparing the 3 different fructose-to-glucose ratio groups, there was no distinct clustering pattern observed. Researchers detail a number of shifts in the microbiome at the phylum, class, order, family, and genus level. For example, at the phylum level, Proteobacteria and Actinobacteria were elevated in the sugar consuming groups. At the class level, Actinobacteria, Bacilli, Alpha-, Beta- and ...
Proteome IDi ,p>The proteome identifier (UPID) is the unique identifier assigned to the set of proteins that constitute the ,a href=http://www.uniprot.org/manual/proteomes_manual>proteome,/a>. It consists of the characters UP followed by 9 digits, is stable across releases and can therefore be used to cite a UniProt proteome.,p>,a href=/help/proteome_id target=_top>More...,/a>,/p> ...
Proteome IDi ,p>The proteome identifier (UPID) is the unique identifier assigned to the set of proteins that constitute the ,a href=http://www.uniprot.org/manual/proteomes_manual>proteome,/a>. It consists of the characters UP followed by 9 digits, is stable across releases and can therefore be used to cite a UniProt proteome.,p>,a href=/help/proteome_id target=_top>More...,/a>,/p> ...
The gut microbiome uses a number of diverse mechanisms to alter the disposition, efficacy and toxicity of drugs and xenobiotics as follows (Carmody and Turnbaugh, 2014; Klaassen and Cui, 2015): 1) The gut microbiota may express enzymes that either metabolically activate or inactivate drugs. For example, sulfalazine used to treat gut inflammation is converted to its pharmacologically active form, 5-amino 5-salicylic acid by microbial enzymes. In contrast, digoxin is inactivated by a cardiac glycoside expressed by Eggerthella lenta. 2) The drug may be sequestered by direct binding to the bacterial organism. An example here is the sequestration of L-DOPA by Helicobacter pylori. 3) The drug may be metabolically reactivated by microbially expressed enzymes. A good example of this mechanism is provided by the chemotherapeutic drug irinotecan (also called CPT-11) (Wallace et al., 2010). In the liver, irinotecan is metabolically inactivated via glucuronidation. Within the intestines, however, it is ...
This site is maintained by SARE Outreach for the SARE program and is based upon work supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, under award No. 2019-38640-29881. SARE Outreach operates under cooperative agreements with the University of Maryland to develop and disseminate information about sustainable agriculture. USDA is an equal opportunity provider and employer.. ...
This site is maintained by SARE Outreach for the SARE program and is based upon work supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, under award No. 2019-38640-29881. SARE Outreach operates under cooperative agreements with the University of Maryland to develop and disseminate information about sustainable agriculture. USDA is an equal opportunity provider and employer.. ...
This site is maintained by SARE Outreach for the SARE program and is based upon work supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, under award No. 2019-38640-29881. SARE Outreach operates under cooperative agreements with the University of Maryland to develop and disseminate information about sustainable agriculture. USDA is an equal opportunity provider and employer.. ...
Recently Mycobacterium tuberculosis was shown to possess a novel protein modification, in which a small protein Pup is conjugated to the epsilon-amino groups of lysines in target proteins. Analogous to ubiquitin modification in eukaryotes, this remarkable modification recruits proteins for degradation via archaeal-type proteasomes found in mycobacteria and allied actinobacteria. While a mycobacterial protein named PafA was found to be required for this conjugation reaction, its biochemical mechanism has not been elucidated. Using sensitive sequence profile comparison methods we establish that the PafA family proteins are related to the γ-glutamyl-cysteine synthetase and glutamine synthetase. Hence, we predict that PafA is the Pup ligase, which catalyzes the ATP-dependent ligation of the terminal γ-carboxylate of glutamate to lysines, similar to the above enzymes. We further discovered that an ortholog of the eukaryotic PAC2 (e.g. cg2106) is often present in the vicinity of the actinobacterial Pup
BIOMEDICUS GEL CU SARE DE BAZNA 250 ML gel cu sare de bazna , extract de tataneasa , scoarta de salcie , brusture si salvie.   Sarea de bazna - este extrasa de la mare adancime din subsolul satiunii Bazna, jud.Mures. Sarea este obtinuta prin fierbarea si evaporarea apelor minerale bogate in cloruri de natriu,potasiu,magneziu, calciu iodura de brom si de natriu. Sarea de bazna este indicata in: reumatism, artorza , poliartrita, discopatii, mialgii, hipertiroidie, leucoplazie. Tataneasa extern este considerata un adevarat panaceu, deoarece alina inflamatiile si grabeste vindecarea in dermatoze, inchide si vindeca rapid plagile,grabeste procesul de refacere a epidermei dupa arsuri, face sa se retraga tumorile exteriorizate, reface rapid tesuturile dupa contuzii si traumatisme. Unul din cele mai active principii ale tatanesei este alantoina, avand efecte antiinflamatoare, antitumorale si favorizeaza refacerea tesuturilor. Extractul de scoarta de Salcie , aspirina naturala
A mutation in a transcription factor makes people susceptible to Trophyrema whippelii, the bacterium that causes a rare condition called Whipples disease.
A division of the Bacteria (Eubacteria) that has three classes, the anaerobic Clostridia, the aerobic Bacilli, and the Mollicutes (mycoplasmas). They differ from Actinobacteria in having low G+C levels in their DNA. Most, but not all, are Gram-positive. ...
A few Firmicutes encode a fusion between accD and accA (CLOTE, EUBR3, FRAAA, FRACC, FRASN, NATTJ) as do a few Actinobacteria (SACEN, SALAI and SALTO). Most plants have 2 forms, the so-called prokaryotic form in their plastids and the eukaryotic form in the cytoplasm. The prokaryotic form is longer than the one found in bacteria. The grass family (Poaceae) have only the eukaryotic form in both locations. The eukaryotic form consists of a single large protein in which are fused all 4 subunits that are separate in prokaryotes ...
Exploiting the genomes of the Actinobacteria: plant growth promoters and producers of natural products and energy relevant enzymes united in a taxonomically unresolved ...
ID CONWI_1_PE3285 STANDARD; PRT; 498 AA. AC CONWI_1_PE3285; D3FF04; DT 00-JAN-0000 (Rel. 1, Created) DT 00-JAN-0000 (Rel. 2, Last sequence update) DT 00-JAN-0000 (Rel. 3, Last annotation update) DE SubName: Full=Drug resistance transporter, EmrB/QacA subfamily; DE (CONWI_1.PE3285). GN OrderedLocusNames=Cwoe_3303; OS CONEXIBACTER WOESEI DSM 14684. OC Bacteria; Actinobacteria; Rubrobacteridae; Solirubrobacterales; OC Conexibacteraceae; Conexibacter. OX NCBI_TaxID=469383; RN [0] RP -.; RG -.; RL -.; CC -!- SEQ. DATA ORIGIN: Translated from the HOGENOM CDS CONWI_1.PE3285. CC Conexibacter woesei DSM 14684, complete genome. CC sequence. CC -!- ANNOTATIONS ORIGIN:D3FF04_CONWI CC -!- GENE_FAMILY: HOG000239124 [ FAMILY / ALN / TREE ] DR UniProtKB/Swiss-Prot; D3FF04; -. DR EMBL; CP001854; ADB51721.1; -; Genomic_DNA. DR RefSeq; YP_003395096.1; NC_013739.1. DR GeneID; 8733752; -. DR GenomeReviews; CP001854_GR; Cwoe_3303. DR KEGG; cwo:Cwoe_3303; -. DR GO; GO:0016021; C:integral to membrane; IEA:UniProtKB-KW. ...
Actinobacteria[edit]. Main article: Actinobacteria. The Actinobacteria is a phylum of monoderm Gram positive bacteria, many of ... High-G+C species (later renamed Actinobacteria[19]) (Actinomyces, Streptomyces, Arthrobacter, Micrococcus, Bifidobacterium) ... There are only two phyla of monoderm Gram positive bacteria, the other being the Firmicutes; the actinobacteria generally have ... Until recently, it was believed than only Firmicutes and Actinobacteria were Gram-positive. However, the candidate phylum TM7 ...
The Actinobacteria Bergey's manual of systematics of archaea and bacteria (2015), an online book, replaces the five-volume set ... The Actinobacteria. Bergey's Manual of Systematic Bacteriology. 4 (2nd ed.). New York: Springer. p. 1750. ISBN 978-0-387-95043- ...
Actinobacteria phyl. nov. In Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 5 (The Actinobacteria). Riley, Ian T.; ...
Like all Actinobacteria, it is gram-positive and with a high CG content (69%). It is rod/coccoid shaped bacterium whose main ... Aestuariimicrobium is a singleton genus in the phylum Actinobacteria (Bacteria), whose sole member, namely Aestuariimicrobium ... The Actinobacteria. Bergey's Manual of Systematic Bacteriology. 4 (2nd ed.). New York: Springer. p. 1750. ISBN 978-0-387-95043- ...
Gram-positive bacterial infection: Actinobacteria (primarily A00-A79, 001-041, 080-109) ...
Actinobacteria. *Mycobacterium-related: Aquarium granuloma. *Borderline lepromatous leprosy. *Borderline leprosy. *Borderline ...
This Actinobacteria-related article is a stub. You can help Wikipedia by expanding it.. *v ... Actinobacteria#Phylogeny, shows about 20 species. References[edit]. *See the NCBI webpage on Actinomycetales Data extracted ... The Actinomycetales are an order of Actinobacteria. A member of the order is often called an actinomycete. The actinomycetes ... Some actinobacteria can form rod- or coccoid-shaped forms, while others can form spores on aerial hyphae. ...
Actinobacteria. *Mycobacterium-related: Aquarium granuloma. *Borderline lepromatous leprosy. *Borderline leprosy. *Borderline ...
Gram-positive bacterial infection: Actinobacteria (primarily A00-A79, 001-041, 080-109) ...
... (formerly known as Actinobaculum[1]) is a genus in the phylum Actinobacteria (Bacteria).[2] ...
This Actinobacteria-related article is a stub. You can help Wikipedia by expanding it.. *v ...
Actinobacteria Class: Actinobacteria Order: Bifidobacteriales Family: Bifidobacteriaceae Genus: Bifidobacterium Species: B. ...
... is a bacterium that, along with Mycobacterium leprae, causes leprosy (Hansen's disease). It was only recently discovered, in 2008.[1] Analysis of its 16S rRNA gene confirms that the species is distinct from Mycobacterium leprae.[2] M. lepromatosis is an acid-fast bacillus (AFB) which causes diffuse lepromatous leprosy (DLL).[1] DLL is mainly found in Mexico and the Caribbean.[3] DLL is a severe form of leprosy which manifests through nerve invasion and extensive skin ulcerations due to massive AFB burden in internal organs.[1] M. lepromatosis, like M. leprae, has not been cultured in the laboratory because they both lack genes necessary to grow outside their hosts. These genes are believed to have been lost through reductive evolution.[1] ...
Actinobacteria Class: Actinobacteria Order: Bifidobacteriales Family: Bifidobacteriaceae Genus: Bifidobacterium. Orla-Jensen ...
"We [Heart] Actinobacteria". Marine Technology News. 2016-10-11. Retrieved 2021-03-20. "Scientists create super-strong collagen ... Forest went on to study the light-harvesting mechanisms of actinobacteria, identifying two light-capturing molecular components ...
ICEs have been detected in Proteobacteria (e.g., Pseudomonas spp., Aeromonas spp., E. coli, Haemophilus spp.), Actinobacteria ...
5: The Actinobacteria (2nd ed.). New York: Springer-Verlag. ISBN 978-0-387-95043-3. Aronson JD (1926). "Spontaneous ... Mycobacterium marinum is a slow growing mycobacterium (SGM) belonging to the genus Mycobacterium and the phylum Actinobacteria ...
The high G + C phylum was made up of the Actinobacteria and the low G + C phylum contained the Firmicutes. The Actinobacteria ... The (low G + C) Firmicutes, have a 45-60% GC content, but this is lower than that of the Actinobacteria. Although bacteria are ... Actinobacteria, Firmicutes, Thermotogae, Chloroflexi, etc.). The presence of this CSI in all sequenced species of conventional ...
Actinobacteria, Bacteroidetes, Firmicutes and Proteobacteria. Proteobacteria are dominantly present in every life stage, and ...
nov., a moderately halotolerant Actinobacteria". International Journal of Systematic and Evolutionary Microbiology. 64 (Pt 7): ...
Gram-positive actinobacteria diseases}}. Medicine. Actinobacteria (high-G+C) Infectious diseases · Bacterial diseases: G+ ( ...
... is derived from marine actinobacteria. In preliminary laboratory research, it has shown activity against Bacillus ...
Proposal for a new hierarchic classification system, Actinobacteria classis nov. Int. J. Syst. Bacteriol., 1997, 47:479-491. ... "An update of the structure and 16S rRNA gene sequence-based definition of higher ranks of the class Actinobacteria, with the ... "Road map of the phylum Actinobacteria". Bergey's Manual® of Systematic Bacteriology. p. 1. doi:10.1007/978-0-387-68233-4_1. ... "Phylogenetic Framework and Molecular Signatures for the Main Clades of the Phylum Actinobacteria". Microbiology and Molecular ...
... delineating them from other Actinobacteria. The Coriobacteriia are an early branching lineage within the Actinobacteria phylum ... Gao B, Gupta RS (2005). "Conserved indels in protein sequences that are characteristic of the phylum Actinobacteria". Int J ... The Coriobacteriia are a class of Gram-positive bacteria within the Actinobacteria phylum. Species within this group are ... Gao B, Gupta RS (2012). "Phylogenetic framework and molecular signatures for the main clades of the phylum Actinobacteria". ...
They are members of the actinobacteria. Parte, A.C. "Cellulomonas". LPSN. Glazer AN, Nikaido H (2007) Microbial Biotechnology, ...
... is a species of actinobacteria. It produces the novel cyclic lipopeptide antibiotic daptomycin (US ...
The Jonesiaceae are a monotypic Actinobacteria family. The currently accepted taxonomy is based on the List of Prokaryotic ...
... is a species of actinobacteria. It produces the immunosuppressive drug tacrolimus. Tacrolimus was ...
Some actinobacteria can form rod- or coccoid-shaped forms, while others can form spores on aerial hyphae. Actinomycetales ... Actinobacteria#Phylogeny, shows about 20 species See the NCBI webpage on Actinomycetales Data extracted from the "NCBI Taxonomy ... The Actinomycetales are an order of Actinobacteria. A member of the order is often called an actinomycete. The actinomycetes ...
Actinobacteria. › Actinobacteria. › unclassified Actinobacteria (class). › unclassified Actinobacteria (class) (miscellaneous) ...
"Draft genome sequences for four Actinobacteria strains OK006 OK074 OV450 and OV320.". Brown S.D., Utturkar S.M., Klingeman D.M. ... This proteome is part of the Actinobacteria bacterium OK006 pan proteome (fasta) ...
Actinobacteria have high guanine and cytosine content in their DNA. The G+C content of Actinobacteria can be as high as 70%, ... The Actinobacteria are a phylum of mostly Gram-positive bacteria. They can be terrestrial or aquatic. They are of great ... Some soil actinobacteria (such as Frankia) live symbiotically with the plants whose roots pervade the soil, fixing nitrogen for ... Streptomyces and other actinobacteria are major contributors to biological buffering of soils. They are also the source of many ...
Actinobacteria have high guanine and cytosine content in their DNA.[14] The G+C content of Actinobacteria can be as high as 70 ... Class Actinobacteria Stackebrandt et al. 1997 (Actinobacteridae Stackebrandt et al. 1997 emend. Zhi et al. 2009) *Species ?" ... The Actinobacteria are a phylum of Gram-positive bacteria. They can be terrestrial or aquatic.[1] They are of great economic ... Some soil actinobacteria (such as Frankia) live symbiotically with the plants whose roots pervade the soil, fixing nitrogen for ...
actinobacterium synonyms, actinobacterium pronunciation, actinobacterium translation, English dictionary definition of ... ac·tin·o·bac·ter·i·a Any of various gram-positive bacteria of the phylum Actinobacteria, which includes bacteria that live in ... actinobacterium. Also found in: Medical, Wikipedia.. Related to actinobacterium: Actinomycetes, Verrucomicrobia. ac·tin·o·bac· ... Actinobacterium - definition of actinobacterium by The Free Dictionary https://www.thefreedictionary.com/actinobacterium ...
The Actinobacteria are a group of gram-positive bacteria. Most are found in the soil. They include some of the most common soil ... All Actinobacteria are aerobic. A few forms are pathogens, such as Mycobacterium. Some are thermophilic. ... Retrieved from "https://simple.wikipedia.org/w/index.php?title=Actinobacteria&oldid=6492579" ...
Molecular analysis of the filamentous actinobacteria Frankiais laborious because of the slow growth rate and required biomass ... Bassi CA, Benson DR (2007) Growth characteristics of the slow-growing actinobacterium Frankia sp. strain Ccl3 on solid media. ... In: Rosenberg EDE, Lory S, Stackebrandt E, Thompson F (eds) The prokaryote-actinobacteria. Springer, Berlin, pp 339-356. https ... Molecular analysis of the filamentous actinobacteria Frankia is laborious because of the slow growth rate and required biomass ...
Actinobacteria. Actinobacteria are a group of Gram-positive bacteria with high guanine and cytosine content. They can be ... Actinobacteria is one of the dominant phyla of the bacteria.. Use of the ferric uptake regulator (fur) has been suggested for ...
ac·tin·o·bac·ter·i·a, Any of various gram-positive bacteria of the phylum Actinobacteria, which includes bacteria that live in ... actinobacterium. ac·tin·o·bac·ter·i·um. noun. pl. ac·tin·o·bac·ter·i·a, Any of various gram-positive bacteria of the phylum ... Origin of actinobacterium. From New Latin Actīnobactēria phylum name Actīnomykēs type genus of the phylum ; see actinomyces . ... How would you define actinobacterium? Add your definition here.. Please enable JavaScript to view the comments powered by ...
To date, the role and diversity of ICEs in Actinobacteria have received little attention. Putative ICEs were searched for in ... 17 ICEs were found in Actinobacteria from the genus Frankia, globally important nitrogen-fixing microorganisms that establish ... in Actinobacteria a single DNA FtsK/SpoIIIE-like translocation protein is required. ... 275 genomes of Actinobacteria using HMM-profiles of proteins involved in ICE maintenance and transfer. These exhaustive ...
... studies have focused on the exploitation of actinobacteria from unexplored environments and actinobacteria symbionts of plants ... In this study, twenty-four actinobacteria strains isolated from workers of ,i,Trachymyrmex,/i, ants were evaluated for ... After decades of intensive searching for antimicrobial compounds derived from actinobacteria, the frequency of isolation of new ... Actinobacteria Isolation and Identification. Several actinobacteria colonies were observed after incubation of isolation plates ...
Actinobacteria and Acidimicrobiia, except the anaerobic orders Actinomycetales and Bifidobacteriales). An obligatory ... Actinobacteria are closely linked to human life as industrial producers of bioactive molecules and as human pathogens. ... bioinformatics and phylogenetic analysis we show that genes for cyt bcc-aa3 supercomplex are characteristic for Actinobacteria ... The obligate respiratory supercomplex from Actinobacteria Wei-Chun Kao 1 Thomas Kleinschroth 1 Wolfgang Nitschke 2 Frauke ...
Isolate MWH-Uga1 was cultivated prior to this study from a freshwater pond in Uganda and belongs to a group of Actinobacteria ... On the basis of these findings, and many studies that show Actinobacteria are common inhabitants of lakes, we predicted that ... Actinorhodopsin genes discovered in diverse freshwater habitats and among cultivated freshwater Actinobacteria.. Sharma AK1, ... ActR genes were also discovered present in numerous mixed cultures containing freshwater Actinobacteria and among environmental ...
Pages in category "Actinobacteria". The following 166 pages are in this category, out of 166 total. ... Retrieved from "https://www.wikidoc.org/index.php?title=Category:Actinobacteria&oldid=161160" ...
Unexpected abundance of coenzyme F(420)-dependent enzymes in Mycobacterium tuberculosis and other actinobacteria.. Selengut JD1 ... Unexpected Abundance of Coenzyme F420-Dependent Enzymes in Mycobacterium tuberculosis and Other Actinobacteria ... Unexpected Abundance of Coenzyme F420-Dependent Enzymes in Mycobacterium tuberculosis and Other Actinobacteria ... Unexpected Abundance of Coenzyme F420-Dependent Enzymes in Mycobacterium tuberculosis and Other Actinobacteria ...
Here, we investigate the role of DNA-partitioning protein ParB and SMC condensin complexes in the actinobacterium ... Chromosome organization by a conserved condensin-ParB system in the actinobacterium Corynebacterium glutamicum. *Kati Böhm1. , ... C. glutamicum is a polar growing actinobacterium, whose genome encodes both SMC/ScpAB and MksBEFG. In this species, the two ... We report here that the Gram-positive actinobacterium C. glutamicum also contains SMC/ScpAB and the Muk-like MksBEFG complexes ...
Among these, little survey exists on the diversity of Actinobacteria in arid areas, which are often adapted to relatively high ... Among these, little survey exists on the diversity of Actinobacteria in arid areas, which are often adapted to relatively high ... Bioprospecting of extremophilic Actinobacteria through mining untapped strains and avoiding resiolation of known biomolecules ... In addition, numerous biologically active small molecules are expected to be discovered from arid adapted Actinobacteria in the ...
Actinobacteria on the other hand shows important bioactive substances. ... Actinobacteria are gram-positive bacteria that can be found in both aquatic and terrestrial environment. This kind of bacteria ... Isolation of Antimicrobial Producing Actinobacteria from Soil Samples. Actinobacteria is a gram-positive that mostly found in ... Actinobacteria is much like fungi aiding in the decomposition of organic matter from the dead organisms. Because of these, the ...
Read Plant Growth Promoting Actinobacteria A New Avenue for Enhancing the Productivity and Soil Fertility of Grain Legumes by ... Plant Growth Promoting Actinobacteria A New Avenue for Enhancing the Productivity and Soil Fertility of Grain Legumes by ...
Actinobacteria explanation free. What is Actinobacteria? Meaning of Actinobacteria medical term. What does Actinobacteria mean? ... Looking for online definition of Actinobacteria in the Medical Dictionary? ... redirected from Actinobacteria). Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.. Related to Actinobacteria: ... Actinobacteria abundance was found to be increasing in the burned sites (Table 4).. Changes of ground vegetation, soil chemical ...
Sen A, Daubin V, Abrouk D, Gifford I, Berry AM, Normand P (2014) Phylogeny of the class Actinobacteria revisited in the light ... In the present study, we analyzed the PAS domains found in the proteomes of several actinobacteria representing a variety of ... Characterization of PAS domains in Frankia and selected Actinobacteria and their possible interaction with other co-domains for ... Gao B, Gupta RS (2012) Phylogenetic framework and molecular signatures for the main clades of the phylum Actinobacteria. ...
Rare Actinobacteria represent an untapped source of new bioactive compounds that have been scarcely recognized. In this study, ... Rare Actinobacteria represent an untapped source of new bioactive compounds that have been scarcely recognized. In this study, ... Comparative analysis of the 16S rRNA gene sequences led to identifying isolates that belong to the phylum Actinobacteria with ... Comparative analysis of the 16S rRNA gene sequences led to identifying isolates that belong to the phylum Actinobacteria with ...
... J Bacteriol. 2015 Aug; ... We hypothesized that actinorhodopsin from the freshwater actinobacterium Rhodoluna lacicola was a light-activated proton pump ... The genome of the freshwater actinobacterium Rhodoluna lacicola encodes a rhodopsin of the uncharacterized actinorhodopsin ...
... since new taxa of marine actinobacteria can be found, and thus possible new metabolites. Actinobacteria are in the foreground ... This study shows a remarkable culturable diversity of actinobacteria, associated to marine environments along Chile. ... Isolation of Actinobacteria. 2.3.1. Isolation Media. For the isolation of actinobacteria, different media were used (Table 1). ... most of the so-called rare actinobacteria are present (Figure 2a). Rare actinobacteria are those strains that are less likely ...
Exploiting Actinobacteria genomes. Actinobacteria are ubiquitously distributed in both aquatic and terrestrial ecosystems and ... The team expects that this expansion of the genomic coverage of the Actinobacteria will also help researchers resolve the ... Next to Proteobacteria and Firmicutes, Actinobacteria constitute the third most populated phylum among the Bacteria. This ... project calls for sequencing the genomes of 1,000 environmental isolates (type and reference strains) of Actinobacteria and to ...
An actinobacterium closely related to S. arenicola, a known producer of the antimycobacterial rifamycins, was coisolated from ... Marine sponges are known to harbor diverse associated bacteria within their tissues, including actinobacteria (Webster et al., ... The coisolation of the antimycobacterial actinobacterium S. arenicola with mycobacteria from the same specimen of A. ... 2010) Culture-dependent and culture-independent diversity of Actinobacteria associated with the marine sponge Hymeniacidon ...
Planctomycetes; Actinobacteria; Streptomyces; ECF σ factor; group; regulon. Subjects:. 500 Natural sciences and mathematics. ... This thesis mainly focuses on the study of ECF σ factors from the bacterial phyla, Planctomycetes and Actinobacteria., In the ... This thesis mainly focuses on the study of ECF σ factors from the bacterial phyla, Planctomycetes and Actinobacteria. ... σ factors from planctomycetes and actinobacteria. Dissertation, LMU München: Faculty of Biology ...
Here we explore if Actinobacteria potentially play a … ... We sampled for Actinobacteria from 30 fungus-growing termite ... Exploring the Potential for Actinobacteria as Defensive Symbionts in Fungus-Growing Termites Microb Ecol. 2012 May;63(4):975-85 ... Actinobacteria were found throughout all sampled nests and colony parts and, phylogenetically, they are interspersed with ... A more detailed bioassay on 53 isolates, to test the specificity of antibiotics, showed that many Actinobacteria inhibit both ...
Among Actinobacteria, the ParA and ParB proteins have been characterized in Streptomyces; deletions in parA and parB resulted ... The results suggest that R. erythropolis is different from other members of Actinobacteria with respect to ploidy and that R. ... Our results suggest that R. erythropolis is different from other members of Actinobacteria; it is monoploid and has a unique ... Here, we report chromosome dynamics in R. erythropolis PR4, which belongs to the Actinobacteria phylum. It was pertinent to ...
Actinobacteria Stackebrandt et al. 1997, classis nov. Type order: not given. Etymology: Gr. n. aktis -inos, a ray, beam; Gr. n ... Class Actinobacteria. Warning: In the List of Prokaryotic names with Standing in Nomenclature, an arrow (→) only indicates the ... n. Actinobacteria, actinomycete group of bacteria of diverse morphological properties. Valid publication: STACKEBRANDT (E.), ... Note: According to Rules 15, 22 and 27(3), the class Actinobacteria is illegitimate because it was proposed without the ...
  • The Actinobacteria are a phylum of mostly Gram-positive bacteria. (wikipedia.org)
  • Any of various gram-positive bacteria of the phylum Actinobacteria, which includes bacteria that live in the soil and in the digestive tract, as well as pathogens such as those that cause tuberculosis and leprosy. (thefreedictionary.com)
  • Samples were randomly collected from isms, the actinobacteria phylum currently represents five different stations of each river and lake at average the most prospective group of microorganisms for the depths of 2-5 m. (deepdyve.com)
  • It has been shown that 45% of all reported bioactive compounds of microbial origin are Isolation of freshwater actinobacterial strains produced by actinobacteria, more than 70% of which are The collected samples were subjected to physical pre - produced by the largest genus in the phylum Streptomy- treatment (55 °C for 6 min) to hinder the growth of fast- ces [9]. (deepdyve.com)
  • Gram-positive bacteria with a high G+C content are currently recognized as a distinct phylum, Actinobacteria , on the basis of their branching in 16S rRNA trees. (microbiologyresearch.org)
  • Bacteria belonging to the Actinobacteria phylum can be found naturally in the human body on sites ranging from the skin to mucosal surfaces within the gastrointestinal tract. (omegabiomics.com)
  • Actinobacteria has long deviated from other bacteria, which makes it nearly impossible to identify any bacterial group phylogenetically close to this phylum. (omegabiomics.com)
  • Some of the commensals, symbionts, and opportunistic pathogens found in the human microbiome are bacteria found within the phylum Actinobacteria, which includes 219 genera in 48 families and five orders. (omegabiomics.com)
  • The phylum Actinobacteria is one of the dominant bacterial phyla that produce many antibiotics [ 1 , 2 ]. (scitechnol.com)
  • Although, various studies have focused on the ecology of this phylum, data on the ecology of actinobacteria endemic to soda lakes are scanty. (ac.ke)
  • The next phylum is Actinobacteria, which has very low number as seen below. (cfsremission.com)
  • MtrAB-LpqB: a conserved pathway regulating cell division in the phylum Actinobacteria? (uea.ac.uk)
  • One of these two component systems is called MtrAB-LpqB and it is highly conserved in the phylum Actinobacteria. (uea.ac.uk)
  • Using this approach, Li and Liu (2006), successfully isolated bacteria belonging to Actinobacterium and Bacteroidetes from the sponge Craniella austrialiensis. (thefreedictionary.com)
  • The Actinobacteria are a group of gram-positive bacteria . (wikipedia.org)
  • Actinobacteria are a group of Gram-positive bacteria with high guanine and cytosine content. (phys.org)
  • Actinobacteria is one of the dominant phyla of the bacteria. (phys.org)
  • Extremophilic and extremotolerant Actinobacteria , including acidtolerant and alkalitolerant, psychrotolerant and thermotolerant, halotolerant and haloalkalitolerant or xerophiles comprise the group of less investigated of this bacteria. (frontiersin.org)
  • Actinobacteria , actinomycete group of bacteria of diverse morphological properties. (bacterio.net)
  • We hypothesize that this may be due to high abundances of Actinobacteria rather than of groups that are not targeted by the commonly used probe for the domain Bacteria , EUB338 ( 9 ). (asm.org)
  • Keywords: Actinobacteria, UPLC-ESI-MS/MS, GC-MS, VOCs, PKSII, NRPS, phzE Antibiotic resistance against available drugs is one of Background the primary reasons to seek new and novel drugs such Actinobacteria are diverse group of Gram positive and fil - as antibiotics from a natural source to fight against mul - amentous bacteria that have high guanine-cytosine (GC) tidrug-resistant pathogens [4]. (deepdyve.com)
  • Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack Here, the diversity of bacteria living inside plant root tissue was explored with a focus on Actinobacteria, and in particular Streptomyces. (universiteitleiden.nl)
  • In this work, three conserved indels (i.e. inserts or deletions) are described in three widely distributed proteins that are distinctive characteristics of the Actinobacteria and are not found in any other groups of bacteria. (microbiologyresearch.org)
  • In agriculture, Actinobacteria bacteria is used for insecticides, herbicides, fungicides, and growth promoting substances for plants and animals. (omegabiomics.com)
  • Cell envelope assembly during V snapping, an unusual method of cell division in Actinobacteria, is mechanistically different than that seen during cell division of many other bacteria. (nature.com)
  • Recent interest in lichen substances also tends to expand towards the bioactive compounds produced by lichen-associated bacteria, especially Actinobacteria and Cyanobacteria (Parrot et al. (thefreedictionary.com)
  • Good success in isolation of actinobacteria was obtained using a variety of strategies designed to select against fast growing bacteria. (ac.ke)
  • The results also indicated that several taxonomic groups of bacteria, such as Acidobacteria , Actinobacteria and Verrucomicrobia , and their subgroups acted as early-warning indicators of N+V amendments and straw retention in sugarcane-cultivated soils, which can alter the soil chemical factors. (osti.gov)
  • Actinobacteria is one of the dominant bacterial phyla and contains one of the largest of bacterial genera, Streptomyces. (wikipedia.org)
  • Streptomyces and other actinobacteria are major contributors to biological buffering of soils. (wikipedia.org)
  • Actinobacteria, especially Streptomyces spp. (wikipedia.org)
  • Biosynthesis of silver nanoparticles using actinobacterium Streptomyces albogriseolus and its antibacterial activity. (thefreedictionary.com)
  • Microbispora (76%) and Streptomyces (73%) were the predominant endophytic actinobacteria of LP glutinous rice and HN rice, respectively. (gla.ac.uk)
  • Here we present isolation of 17 strains of actinobacteria that belong to the Streptomyces , Nocardia and Nocardiopsis genera. (peerj.com)
  • According to 16S rRNA sequence analysis, most of the strains belonged to genus Streptomyces and a few strains represented the rare actinobacteria Micromonospora, Rhodococcus and Tsukamurella . (microbiologyresearch.org)
  • Actinobacteria, especially the most commonly found Actonobacteria genus, Streptomyces spp. (omegabiomics.com)
  • Among Actinobacteria , Streptomyces are an important industrial group of organisms that have been widely explored for a broad range of biologically active compounds [ 6 ]. (scitechnol.com)
  • The results indicated that all the isolated actinobacteria belong to the genus Streptomyces . (ekb.eg)
  • The dominant four phyla ( Proteobacteria , Firmicutes , Bacteroidetes , and Actinobacteria ) identified comprised over 99% of bacterial community. (thefreedictionary.com)
  • Regardless of the sample to sample variations and regional differences, consistent taxa were represented by 4 phyla with the phyla Proteobacteria, Firmicutes, Actinobacteria , and Bacteroidetes which are especially dominant. (thefreedictionary.com)
  • pylori, the gastric microbiome is much more diverse, consisting of about 50% Actinobacteria and 25% Firmicutes species. (thefreedictionary.com)
  • Las secuencias de los fragmentos del gen ribosomal 16S se compararon con la base de datos del GenBank y el analisis mostro homologia con las secuencias de especies que pertenecen a los fila Proteobacteria, Firmicutes, Bacteroidetes y Actinobacteria dentro de los cuales se encuentran Burkholderia sp. (thefreedictionary.com)
  • El 80 % de la MI se clasifica en 3 grandes filos: Firmicutes (bacterias Gram positivas con bajo contenido de guanina+citosina), Bacteroidetes (bacterias Gram negativas) y Actinobacteria (bacterias Gram positivas con alto contenido de guanina+citosina) (8). (thefreedictionary.com)
  • All communities were highly diverse and dominated by the phyla Firmicutes, Bacteroidetes, Tenericutes, Actinobacteria and Proteobacteria. (wiley.com)
  • Our isolations yielded 360 Actinobacteria, from which we selected subsets for morphological (288 isolates, grouped in 44 morphotypes) and for 16S rRNA (35 isolates, spanning the majority of morphotypes) characterisation. (nih.gov)
  • Antibiotic-activity screening of 288 isolates against the fungal cultivar and competitor revealed that most of the Actinobacteria-produced molecules with antifungal activity. (nih.gov)
  • A more detailed bioassay on 53 isolates, to test the specificity of antibiotics, showed that many Actinobacteria inhibit both Pseudoxylaria and Termitomyces, and that the cultivar fungus generally is more susceptible to inhibition than the competitor. (nih.gov)
  • This study highlighted the abundance of actinobacteria from freshwater sediments of two rivers and one lake, and the isolates were studied for their ability to produce antimicrobial bioactive compounds. (deepdyve.com)
  • Both rice cultivars housed the same amount of endophytic actinobacteria (33 isolates each). (gla.ac.uk)
  • DNA was extracted from the isolates and the 16S rRNA genes amplified using primers described to be domain specific for actinobacteria. (ac.ke)
  • Four actinobacteria isolates affiliated with the genera Rhodococcus, Dietzia, Microbacterium and Nocardia were obtained. (ac.ke)
  • These results increase the number of actinobacteria isolates from soda lakes for potential use in biotechnology research. (ac.ke)
  • A total of ten isolates of actinobacteria and ten isolates of fungi were isolated and characterized phenotypically. (ekb.eg)
  • The study was performed with sixty-nine bacterial isolates deposited at the Embrapa Maize and Sorghum Multifunctional Culture Collection (CCMF-CNPMS) that were previously identified as Actinobacteria based on their growth morphology ( Table 1 ). (geneticsmr.org)
  • We sampled for Actinobacteria from 30 fungus-growing termite colonies, spanning the three main termite genera and two geographically distant sites. (nih.gov)
  • Furthermore, several Actinobacteria genera produce novel secondary metabolites with bioactivities [ 6 ]. (scitechnol.com)
  • In silico testing showed that the primers had a perfect match with 82% of genera in the class Actinobacteria, representing a 26-213% improvement over previously reported primers. (kent.ac.uk)
  • Actinobacteria are widely known for their ability to produce bioactive secondary metabolites, especially compounds with antimicrobial activity. (hindawi.com)
  • Actinobacteria are in the foreground due to their versatile production of secondary metabolites that present various biological activities, such as antibacterials, antitumorals and antifungals. (mdpi.com)
  • Culturable actinobacteria associated with freshwater lake and river sediments has the prospects for the production of bioactive secondary metabolites. (deepdyve.com)
  • Actinobacteria are considered the most economical and biotechnologically important prokaryotes that produce several secondary metabolites with significant biological activities. (scitechnol.com)
  • Also, new isolation methods for actinobacteria from the natural environment are being tried, and these methods will contribute to finding new active secondary metabolites [ 7 ]. (scitechnol.com)
  • Secondary metabolites produced by Actinobacteria of tropical soils represent a largely understudied source of novel molecules with relevant application in medicine, pharmaceutical and food industries, agriculture, and environmental bioremediation. (geneticsmr.org)
  • Thus, the understudied Actinobacteria from tropical soils may represent a promising new source of secondary metabolites for many purposes. (geneticsmr.org)
  • The book also covers the bioactive secondary metabolites obtained from actinobacteria and describes the application of microorganism (Actinobacteria) in plant growth promotion and in environmental cleanup. (allebookstores.com)
  • Finally, the book describes the biocontrol aspects of actinobacteria and how they can control fungal phytopathogens and the production of secondary metabolites. (allebookstores.com)
  • Some actinobacteria are used to produce antibiotics and certain dairy products. (thefreedictionary.com)
  • Nair and his colleagues wanted to determine how such hormones influence the production of antibiotics in actinobacteria. (drugtargetreview.com)
  • Most Actinobacteria of medical or economic significance are in subclass Actinobacteridae, and belong to the order Actinomycetales. (wikipedia.org)
  • citation needed] Of those Actinobacteria not in the Actinomycetales, Gardnerella is one of the most researched. (wikipedia.org)
  • With comprehensive bioinformatics and phylogenetic analysis we show that genes for cyt bcc-aa3 supercomplex are characteristic for Actinobacteria (Actinobacteria and Acidimicrobiia, except the anaerobic orders Actinomycetales and Bifidobacteriales). (archives-ouvertes.fr)
  • Some soil actinobacteria (such as Frankia) live symbiotically with the plants whose roots pervade the soil, fixing nitrogen for the plants in exchange for access to some of the plant's saccharides. (wikipedia.org)
  • Beyond the great interest in Actinobacteria for their soil role, much is yet to be learned about them. (wikipedia.org)
  • Most actinobacteria species explored commercially were isolated from the soil. (hindawi.com)
  • This particular research study investigates the antimicrobial activity of Actinobacteria isolated from the soil in Egypt. (biology-online.org)
  • Therefore, soil samples are rich in Actinobacteria that reveals a wide spectrum as an antimicrobial agent. (biology-online.org)
  • Actinobacteria have adapted to contrasted ecological niches such as the soil, and among others to plants or animals as pathogens or symbionts. (biomedcentral.com)
  • An actinobacterium, strain YIM 70010T, which was isolated from a desert soil sample collected in Egypt, was subjected to a polyphasic taxonomy study. (semanticscholar.org)
  • Actinobacterium strain S63T isolated from a soil sample collected from Spindrift Col on Signy Island (South Orkney Islands, maritime Antarctic) is a new species of the Intrasporangiaceae family. (bas.ac.uk)
  • To this day, actinobacteria producing biologically active compounds were isolated mostly from soil but only a limited range of soil environments were commonly sampled. (beds.ac.uk)
  • Ninety actinobacteria strains isolated at contrasting soil sites were characterized phylogenetically by 16S rRNA gene, for presence of erm and ABC transporter resistance genes and antibiotic production. (beds.ac.uk)
  • The taxonomic position of a novel actinobacterium, strain 169(T), isolated from a sample of Algerian Saharan soil, was determined using a polyphasic taxonomic approach. (ncl.ac.uk)
  • Across 57 soil metagenomic datasets, Actinobacteria (31.5%), Planctomycetes (12.3%), Deltaproteobacteria (12.3%), Alphaproteobacteria (12.0%) and Betaproteobacteria (11.1%) were the most dominant bacterial groups during the experiment. (osti.gov)
  • Actinobacteria: Diversity and Biotechnological Applications: New and Future Developments in Microbial Biotechnology and Bioengineering , a volume in the series New and Future Developments in Microbial Biotechnology and Bioengineering series, offers the latest on the biotechnology of Kingdom actinobacteria, covering unique niches like their endosphere, rhizospheric soil and contaminated sites, etc. (allebookstores.com)
  • Phenotypic Characterization of some Actinobacteria and Fungi Isolated From Exposed rock surfaces in Southwestern Sinai, Egypt', Journal of Scientific Research in Science , 36(1), pp. 66-99. (ekb.eg)
  • Molecular analysis of the filamentous actinobacteria Frankia is laborious because of the slow growth rate and required biomass needed for these techniques. (springer.com)
  • Bassi CA, Benson DR (2007) Growth characteristics of the slow-growing actinobacterium Frankia sp. (springer.com)
  • Frankia, a nitrogen-fixing actinobacterium establishes a root symbiosis with dicotyledonous pionneer plants. (biomedcentral.com)
  • The ins and outs of metal homeostasis by the root nodule actinobacterium Frankia. (unh.edu)
  • BACKGROUND: Frankia are actinobacteria that form a symbiotic nitrogen-fixing association with actinorhizal plants, and play a significant role in actinorhizal plant colonization of metal contaminated areas. (unh.edu)
  • Differences in relative abundance of metagenomic sequences were mainly revealed for Acidobacteria , Actinobacteria , Gammaproteobacteria and Verrucomicrobia with regard to N+V fertilization and straw retention. (osti.gov)
  • We conclude that pigmented rice is yet a challenging source for discovery of bioactive and novel actinobacteria. (gla.ac.uk)
  • The aim of this study was to isolate, characterise and screen novel actinobacteria for industrially relevant enzymes including hydantoinases. (uwc.ac.za)
  • Selective isolation, dereplication and characterisation of novel actinobacteria of commercial and industrial importance. (ncl.ac.uk)
  • In addition, endophytic actinobacteria are also explored for their capacity to produce antimicrobial compounds [ 10 - 12 ]. (hindawi.com)
  • Twelve percent of endophytic actinobacteria was the possibility of discovering novel species from both rice cultivars. (gla.ac.uk)
  • Our findings revealed that seed phytochemicals of pigmented rice (e.g., anthocyanin, γ‐oryzanol, phytate, antioxidants, and content of amylose) were effectors, shaping the community structures and biofunctions of endophytic actinobacteria. (gla.ac.uk)
  • On the basis of these findings, and many studies that show Actinobacteria are common inhabitants of lakes, we predicted that ActR genes would likely be present in other freshwater habitats and among the genomes of cultivated Actinobacteria. (nih.gov)
  • Various Actinobacteria genomes have been sequenced, revealing a wide genomic heterogeneity, which reflect their vast biodiversity. (omegabiomics.com)
  • Researchers have created a method to promote the production of new antibiotic or antiparasitic compounds from the genomes of actinobacteria. (drugtargetreview.com)
  • Researchers say they have developed a method to promote the production of new antibiotic or antiparasitic compounds hiding in the genomes of actinobacteria, which are the source of drugs such as actinomycin and streptomycin and are known to harbour other chemical potential. (drugtargetreview.com)
  • Knowing which regions of the receptor are involved in binding to the hormone and to the DNA enabled the team to scan the genomes of dozens of actinobacteria to find sequences that had the right traits to bind to their receptor or to similar receptors. (drugtargetreview.com)
  • However, in the analysis of sequences from genomes where both resistance genes occurred together the correlation was observed for both ABC transporter and erm genes in actinobacteria but in streptomycetes only in the erm gene. (beds.ac.uk)
  • Actinorhodopsin genes discovered in diverse freshwater habitats and among cultivated freshwater Actinobacteria. (nih.gov)
  • An analysis of small subunit ribosomal RNA genes from metagenomic DNA samples harboring ActR genes suggests that organisms belonging to the acI lineage, an uncultured group of Actinobacteria commonly present in fresh waters, may utilize rhodopsins. (nih.gov)
  • Furthermore, significant diverse types of polyketide synthase (PKS) and non-ribosomal peptide synthetase (NRPS) genes are detected in xerophilic and xerotolerant Actinobacteria and some bioactive compounds are reported from them. (frontiersin.org)
  • Comparative analysis of 16S rDNA genes indicate that uncultured members of the class Actinobacteria are ubiquitous in lakes of various trophic state, size or geographic location ( 16 , 36 ), but actinobacterial sequence types are also known from marine systems ( 31 ). (asm.org)
  • Distribution and evolutionary history of resistance genes in environmental actinobacteria provide information on intensity of antibiosis and evolution of specific secondary metabolic pathways at a given site. (beds.ac.uk)
  • In the analysis of JGI_IMG datasets the correlation between phylogeny of resistance genes and the strain phylogeny based on 16S rRNA genes or five housekeeping genes was observed for both the erm genes and ABC transporter genes in both actinobacteria and streptomycetes. (beds.ac.uk)
  • An update of the structure and 16S rRNA gene sequence-based definition of higher ranks of the class Actinobacteria , with the proposal of two new suborders and four new families and emended descriptions of the existing higher taxa. (thefreedictionary.com)
  • Recently, bioprospecting in underexplored habitats has gained enhanced focus, since new taxa of marine actinobacteria can be found, and thus possible new metabolites. (mdpi.com)
  • In the present study, we analyzed the PAS domains found in the proteomes of several actinobacteria representing a variety of niches. (springer.com)
  • This thesis mainly focuses on the study of ECF σ factors from the bacterial phyla, Planctomycetes and Actinobacteria. (uni-muenchen.de)
  • A phylogenetic analysis reveals that IMPase-like HolPases are not only present in Actinobacteria and plant but can be found in further bacterial phyla, including, among others, Proteobacteria, Chlorobi and Planctomycetes. (uni-bielefeld.de)
  • Unexpected abundance of coenzyme F(420)-dependent enzymes in Mycobacterium tuberculosis and other actinobacteria. (nih.gov)
  • Marine actinobacteria are viewed as a promising source of enzymes with potential technological applications. (bvsalud.org)
  • Amylase, lipase, cellulase are some examples of enzymes isolated from Actinobacteria and currently used in the global market ( Sathya and Ushadevi, 2014 ). (geneticsmr.org)
  • In conclusion, this study shows a rich biodiversity of culturable Actinobacteria, associated to marine sediments from Valparaíso bay, highlighting novel rare Actinobacteria, and their potential for the production of biologically active compounds. (frontiersin.org)
  • Bacteroidetes, and Fusobacteria or Actinobacteria (Tables 1 and. (kaida-fish.net)
  • To cope with this concern, studies have focused on the exploitation of actinobacteria from unexplored environments and actinobacteria symbionts of plants and animals. (hindawi.com)
  • Here we explore if Actinobacteria potentially play a role as defensive symbionts against Pseudoxylaria in fungus-growing termites. (nih.gov)
  • Among these, little survey exists on the diversity of Actinobacteria in arid areas, which are often adapted to relatively high temperatures, salt concentrations, and radiation. (frontiersin.org)
  • In the current survey, the diversity and biotechnological potential of Actinobacteria obtained from arid ecosystems, along with the recent work trend on Iranian arid soils, are reported. (frontiersin.org)
  • This study shows a remarkable culturable diversity of actinobacteria, associated to marine environments along Chile. (mdpi.com)
  • The results show that arid and semi-arid regions represent extremely rich reservoir for the isolation of a significant diversity of Actinobacteria and that Humic acid- Vitamin agar is best for recovering greater numbers and diversity. (ijcmas.com)
  • The results of this study reinforce the proposition that current culture-based techniques drastically underestimate the diversity of Actinobacteria in the environment and highlight the need to evaluate taxon-specific primers regularly in line with improvements in databases holding 16S rDNA sequences. (kent.ac.uk)
  • The taxonomy of Actinobacteria has been a subject of intense debate. (geneticsmr.org)
  • The labeled samples were placed in ster - discovery of bioactive compounds such as antimicrobi- ile tubes (50 ml), transported to the laboratory and were als, antitumor agents, antiparasitics, anticancer agents processed immediately for the isolation of actinobacteria. (deepdyve.com)
  • The genome of the freshwater actinobacterium Rhodoluna lacicola encodes a rhodopsin of the uncharacterized actinorhodopsin family. (nih.gov)
  • Genome sequence of the Fleming strain of Micrococcus luteus, a simple free-living actinobacterium. (jic.ac.uk)
  • In terms of clinical significance, the genome sequences for certain strains of each genus were recently decoded and have given insight into how Actinobacteria adapt within the human body. (omegabiomics.com)
  • This process, called genome mining, allowed the team to identify 90 actinobacteria that appear to be regulated by avenolide or other hormones in the same class. (drugtargetreview.com)
  • Microdiversification in genome-streamlined ubiquitous freshwater Actinobacteria. (uni-bielefeld.de)
  • Complete genome sequence of the sand-sediment actinobacterium Nocardioides dokdonensis FR1436 T . Standards in Genomic Sciences , 12 (1), [44]. (elsevier.com)
  • STACKEBRANDT (E.), RAINEY (F.A.) and WARD-RAINEY (N.L.): Proposal for a new hierarchic classification system, Actinobacteria classis nov. (bacterio.net)
  • Rare Actinobacteria represent an untapped source of new bioactive compounds that have been scarcely recognized. (frontiersin.org)
  • Here, we investigate the role of DNA-partitioning protein ParB and SMC condensin complexes in the actinobacterium Corynebacterium glutamicum . (nature.com)
  • However, the third family of HolPases, the inositol monophosphatase (IMPase)-like HolPases, present in Actinobacteria like Corynebacterium glutamicum (HisN) and plants, are poorly characterized. (uni-bielefeld.de)
  • In this study we focused on the preliminary estimation of fatty acid composition and antibacterial properties of culturable actinobacteria isolated from water surface of underground lakes located in Badzheyskaya and Okhotnichya caves in Siberia. (peerj.com)
  • After decades of intensive searching for antimicrobial compounds derived from actinobacteria, the frequency of isolation of new molecules has decreased. (hindawi.com)
  • For example, the occurrence of actinobacteria associated with marine sponges and the fact that such strains produce compounds with antimicrobial activity confirms this potential [ 7 - 9 ]. (hindawi.com)
  • In this study, rare Actinobacteria from marine sediments were isolated from the Valparaíso bay, Chile, and their potential to produce antibacterial compounds was evaluated. (frontiersin.org)
  • Singh, Bhim 2018-05-05 00:00:00 Background: Actinobacteria from freshwater habitats have been explored less than from other habitats in the search for compounds of pharmaceutical value. (deepdyve.com)
  • According to Rules 15, 22 and 27(3), the class Actinobacteria is illegitimate because it was proposed without the designation of a nomenclatural type. (bacterio.net)
  • always resulted in an immediate bloom of a single phylotype population of members of the class Actinobacteria (Ac1). (asm.org)
  • New primers for the class Actinobacteria: application to marine and terrestrial environments. (kent.ac.uk)
  • In this study, we redesigned and evaluated primers for the class Actinobacteria. (kent.ac.uk)
  • Nocardioides dokdonensis, belonging to the class Actinobacteria, was first isolated from sand sediment of a beach in Dokdo, Korea, in 2005. (elsevier.com)
  • This led to the identification of eight novel ECF groups consisting of 202 protein members from Planctomycetes and 18 novel ECF groups consisting of 427 protein members from Actinobacteria, respectively. (uni-muenchen.de)
  • Selective isolation, dereplication, characterisation and screening of marine actinobacteria. (ncl.ac.uk)
  • In this study, twenty-four actinobacteria strains isolated from workers of Trachymyrmex ants were evaluated for antifungal activity towards a variety of Candida species. (hindawi.com)
  • Results revealed that these sites were dominated by actinobacteria belonging to the family Micromonosporaceae, and a potentially novel Verrucosispora species was identified. (uwc.ac.za)
  • Facial skin treated with the cosmetic, by contrast, had fewer Actinobacteria and fewer Staphylococcus species by the end of the study period, though Staphylococci remained the predominant organisms after treatment. (thefreedictionary.com)
  • Results showed that colony counts, total number of species, and the number of bioactive species of actinobacteria in saxicolous lichens were higher in elevation 3000 m. (thefreedictionary.com)
  • The present results showed the high biotechnological potential of different Actinobacteria from tropical soils. (geneticsmr.org)
  • Although some of the largest and most complex bacterial cells belong to the Actinobacteria, the group of marine Actinomarinales has been described as possessing the smallest free-living prokaryotic cells. (wikipedia.org)
  • The selected strains were characterized morphologically to confirm that they belong to actinobacteria. (academicjournals.org)
  • Marine actinobacteria: perspectives, challenges, future directions. (microbiologyresearch.org)
  • Here, we isolated approximately 90 strains from marine sediments and obtained 7% Actinobacteria among them based on biological activity. (scitechnol.com)
  • Thus, Actinobacteria isolated from marine sediments possess promising biological activities. (scitechnol.com)
  • Actinobacteria are widely distributed in intertidal zones, sea water, sponges, and marine sediment [ 3 , 4 ]. (scitechnol.com)
  • Actinobacteria inhabiting marine environments such as sea sediments have gained considerable attention because they are considered more challenging to culture than their terrestrial relatives [ 5 ]. (scitechnol.com)
  • Here we explored Actinobacteria from marine sediments and isolated useful marine Actinobacteria . (scitechnol.com)
  • Application of the primers to DNA extracted from marine and terrestrial samples revealed the presence of actinobacteria that have not been described previously. (kent.ac.uk)
  • Focus on the isolation of rare marine actinobacteria (rare sensu small local populations, small geographical range and narrow habitat specificity). (ncl.ac.uk)
  • Therefore, arid and desert habitats are special ecosystems which can be recruited for the isolation of uncommon Actinobacteria with new metabolic capability. (frontiersin.org)
  • The current study highlights the significance of the biomedical applications of the actinobacteria isolated from the Saudi habitats. (academicjournals.org)
  • While this role is also played by fungi, Actinobacteria are much smaller and likely do not occupy the same ecological niche. (wikipedia.org)
  • Several studies have focused on the association between actinobacteria and insects from an ecological perspective [ 13 - 25 ]. (hindawi.com)
  • Here we provide an overview of novel regulatory mechanisms that act in physiological, global, and cluster specific regulatory manners on biosynthetic pathways in Actinobacteria and consider these alongside their ecological and evolutionary implications. (strath.ac.uk)
  • Isolate MWH-Uga1 was cultivated prior to this study from a freshwater pond in Uganda and belongs to a group of Actinobacteria previously identified in freshwater ecosystems. (nih.gov)
  • We hypothesized that actinorhodopsin from the freshwater actinobacterium Rhodoluna lacicola was a light-activated proton pump and confirmed this by expressing actinorhodopsin in retinal-producing Escherichia coli. (nih.gov)
  • Actinobacteria are ubiquitous and have been detected in terrestrial and aquatic ecosystems. (ac.ke)
  • In the present study, morphological traits, enzymatic activities, and partial sequencing of the 16S rRNA gene were used for characterizing Actinobacteria isolated from Brazilian tropical soils. (geneticsmr.org)
  • The present study aimed to characterize sixty-nine Actinobacteria isolated from compost and tropical soils using morphological, biochemical, and molecular methods. (geneticsmr.org)
  • Actinobacteria abundance was found to be increasing in the burned sites (Table 4). (thefreedictionary.com)
  • We examined abundance, bioactivity, and endophytism of cultivable actinobacteria isolated from plant interiors of two Thai pigmented rice cultivars: Hom Nin (HN) rice and Luem Pua (LP) glutinous rice. (gla.ac.uk)
  • In addition, numerous biologically active small molecules are expected to be discovered from arid adapted Actinobacteria in the future. (frontiersin.org)
  • These results indicate the importance of actinobacteria inhabiting arid rocks of Sinai for production of promising antibiotic leads. (ekb.eg)
  • Isolation and antimicrobial activities of actinobacteria closely associated with liquorice plants Glycyrrhiza glabra L. and Glycyrrhiza inflate BAT. (microbiologyresearch.org)
  • Actinobacteria were found throughout all sampled nests and colony parts and, phylogenetically, they are interspersed with Actinobacteria from origins other than fungus-growing termites, indicating lack of specificity. (nih.gov)
  • However, after decades of bioprospecting actinobacteria from this environment, it is becoming more difficult to obtain strains producing novel bioactive metabolites [ 4 ]. (hindawi.com)
  • Rather than pharmaceutically active metabolites, molecules with protection activity against drying such as Ectoin and Hydroxyectoin with potential application in industry and agriculture have also been identified from xerophilic Actinobacteria . (frontiersin.org)
  • Hoskisson, PA & Fernández-Martínez, LT 2018, ' Regulation of specialised metabolites in Actinobacteria - expanding the paradigms ', Environmental Microbiology Reports , pp. 1-21. (strath.ac.uk)
  • Actinobacteria is a gram-positive that mostly found in both aquatic and terrestrial environment. (biology-online.org)