Crenarchaeota
Archaea
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.
Glyceryl Ethers
Pyrodictiaceae
RNA, Archaeal
Autotrophic Processes
The processes by which organisms use simple inorganic substances such as gaseous or dissolved carbon dioxide and inorganic nitrogen as nutrient sources. Contrasts with heterotrophic processes which make use of organic materials as the nutrient supply source. Autotrophs can be either chemoautotrophs (or chemolithotrophs), largely ARCHAEA and BACTERIA, which also use simple inorganic substances for their metabolic energy reguirements; or photoautotrophs (or photolithotrophs), such as PLANTS and CYANOBACTERIA, which derive their energy 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 nutrient and energy requirements.
Korarchaeota
Sulfolobaceae
Thermofilaceae
Hot Springs
RNA, Ribosomal, 16S
Euryarchaeota
DNA, Ribosomal
Sulfolobus
Geologic Sediments
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)
Biodiversity
Sulfolobus acidocaldarius
Ammonia
Plankton
Desulfurococcaceae
A family of archaea, in the order DESULFUROCOCCALES, consisting of anaerobic cocci which utilize peptides, proteins or carbohydrates facultatively by sulfur respiration or fermentation. There are eight genera: AEROPYRUM, Desulfurococcus, Ignicoccus, Staphylothermus, Stetteria, Sulfophoboccus, Thermodiscus, and Thermosphaera. (From Bergey's Manual of Systematic Bacteriology, 2d ed)
Molecular Sequence Data
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.
Sequence Analysis, DNA
Methylmalonyl-CoA Decarboxylase
Bacteria
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.
Water Microbiology
Gene Expression Regulation, Archaeal
Genes, rRNA
Methane
Marine Biology
Soil Microbiology
Ecosystem
Anacardiaceae
Echinodermata
A phylum of the most familiar marine invertebrates. Its class Stelleroidea contains two subclasses, the Asteroidea (the STARFISH or sea stars) and the Ophiuroidea (the brittle stars, also called basket stars and serpent stars). There are 1500 described species of STARFISH found throughout the world. The second class, Echinoidea, contains about 950 species of SEA URCHINS, heart urchins, and sand dollars. A third class, Holothuroidea, comprises about 900 echinoderms known as SEA CUCUMBERS. Echinoderms are used extensively in biological research. (From Barnes, Invertebrate Zoology, 5th ed, pp773-826)
Acanthaceae
A plant family of the order Lamiales. It is characterized by simple leaves in opposite pairs, cystoliths (enlarged cells containing crystals of calcium carbonate), and bilaterally symmetrical and bisexual flowers that are usually crowded together. The common name for Ruellia of wild petunia is easily confused with PETUNIA.
Brachyura
Agaricales
Catfishes
Organelles
Transition Temperature
Cell Wall
Halobacterium
Two family B DNA polymerases from Aeropyrum pernix, an aerobic hyperthermophilic crenarchaeote. (1/102)
DNA polymerase activities in fractionated cell extract of Aeropyrum pernix, a hyperthermophilic crenarchaeote, were investigated. Aphidicolin-sensitive (fraction I) and aphidicolin-resistant (fraction II) activities were detected. The activity in fraction I was more heat stable than that in fraction II. Two different genes (polA and polB) encoding family B DNA polymerases were cloned from the organism by PCR using degenerated primers based on the two conserved motifs (motif A and B). The deduced amino acid sequences from their entire coding regions contained all of the motifs identified in family B DNA polymerases for 3'-->5' exonuclease and polymerase activities. The product of polA gene (Pol I) was aphidicolin resistant and heat stable up to 80 degrees C. In contrast, the product of polB gene (Pol II) was aphidicolin sensitive and stable at 95 degrees C. These properties of Pol I and Pol II are similar to those of fractions II and I, respectively, and moreover, those of Pol I and Pol II of Pyrodictium occultum. The deduced amino acid sequence of A. pernix Pol I exhibited the highest identities to archaeal family B DNA polymerase homologs found only in the crenarchaeotes (group I), while Pol II exhibited identities to homologs found in both euryarchaeotes and crenarchaeotes (group II). These results provide further evidence that the subdomain Crenarchaeota has two family B DNA polymerases. Furthermore, at least two DNA polymerases work in the crenarchaeal cells, as found in euryarchaeotes, which contain one family B DNA polymerase and one heterodimeric DNA polymerase of a novel family. (+info)Lessons from the Aeropyrum pernix genome. (2/102)
Aeropyrum pernix is the first crenarchaeote and first aerobic member of the Archaea for which the complete genome sequence has been determined. The sequence confirms the distinct nature of crenarchaeotes and provides new insight into the relationships between the three domains: Bacteria, Archaea and Eukaryotes. (+info)Novel prenyltransferase gene encoding farnesylgeranyl diphosphate synthase from a hyperthermophilic archaeon, Aeropyrum pernix. Molecularevolution with alteration in product specificity. (3/102)
Prenyltransferases catalyse sequential condensations of isopentenyl diphosphate with allylic diphosphates. Previously, we reported the presence of farnesylgeranyl diphosphate (FGPP) synthase activity synthesizing C25 isoprenyl diphosphate in Natronobacterium pharaonis which is a haloalkaliphilic archaeon having C20-C25 diether lipids in addition to C20-C20 diether lipids commonly occurring in archaea [Tachibana, A. (1994) FEBS Lett. 341, 291-294]. Recently, it was found that a newly isolated aerobic hyperthermophilic archaeon, Aeropyrum pernix, had only C25-C25 diether lipids, not the usual C20-containing lipids [Morii, H., Yagi, H., Akutsu, H., Nomura, N., Sako, Y. & Koga, Y. (1999) Biochim. Biophys. Acta 1436, 426-436]. In this report, we describe the isoloation from A. pernix of the novel prenyltransferase gene, fgs, encoding FGPP synthase. The protein encoded by fgs was expressed in Escherichia coli as a glutathione S-transferase fusion protein and produced FGPP as a final product. Phylogenetic analysis of fgs with other prenyltransferases revealed that the short-chain prenyltransferase family is divided into three subfamilies: bacterial subfamily I, eukaryotic subfamily II, and archaeal subfamily III. fgs is clearly contained within the archaeal geranylgeranyl diphosphate (GGPP) synthase group (subfamily III), suggesting that FGPP synthase evolved from an archaeal GGPP synthase with an alteration in product specificity. (+info)pING family of conjugative plasmids from the extremely thermophilic archaeon Sulfolobus islandicus: insights into recombination and conjugation in Crenarchaeota. (4/102)
A novel family of conjugative plasmids from Sulfolobus comprising the active variants pING1, -4, and -6 and the functionally defective variants pING2 and -3, which require the help of an active variant for spreading, has been extensively characterized both functionally and molecularly. In view of the sparse similarity between bacterial and archaeal conjugation and the lack of a practical genetic system for Sulfolobus, we compared the functions and sequences of these variants and the previously described archaeal conjugative plasmid pNOB8 in order to identify open reading frames (ORFs) and DNA sequences that are involved in conjugative transfer and maintenance of these plasmids in Sulfolobus. The variants pING4 and -6 are reproducibly derived from pING1 in vivo by successive transpositions of an element from the Sulfolobus genome. The small defective but mobile variants pING2 and -3, which both lack a cluster of highly conserved ORFs probably involved in plasmid transfer, were shown to be formed in vivo by recombinative deletion of the larger part of the genomes of pING4 and pING6, respectively. The efficient occurrence of these recombination processes is further evidence for the striking plasticity of the Sulfolobus genome. (+info)Acidilobus aceticus gen. nov., sp. nov., a novel anaerobic thermoacidophilic archaeon from continental hot vents in Kamchatka. (5/102)
New thermoacidophilic organisms that were able to grow anaerobically on starch were isolated from the acidic hot springs of Kamchatka. Strain 1904T, isolated from a hot spring of the Moutnovski volcano, was characterized in detail. Its cells were regular or irregular cocci that were 1-2 microm in diameter, non-motile, and had a cell envelope consisting of one layer of subunits. The new organism was a hyperthermophile, growing in the temperature range 60-92 degrees C (with an optimum at 85 degrees C), an acidophile, having the pH range for growth of 2.0-6.0 (with an optimum at 3.8), and an obligate anaerobe. It fermented starch, forming acetate as the main growth product. Other growth substrates were yeast extract, beef extract and soya extract. Growth on yeast extract, beef extract and soya extract was stimulated by elemental sulfur, which was reduced to H2S. Acetate, arabinose, cellulose, formate, fructose, galactose, glucose, glycine, guar gum, lichenan, malate, maltose, methanol, pectin, pyruvate, propionate, xylan, xylose or a mixture of amino acids failed to support growth both in the presence and the absence of sulfur. When starch was used as the growth substrate, yeast extract (100 mg l(-1)) was required as a growth factor. The G+C content of the DNA was found to be 53.8 mol%. Comparison of the complete 16S rDNA sequence with databases revealed that the new isolate belonged to the kingdom Crenarchaeota. It was not closely related to any described genera (showing sequence similarity below 90.8%) and formed a separate branch of the Crenarchaeota. On the basis of physiological differences and rRNA sequence data, a new genus--Acidilobus--is proposed, the type species being Acidilobus aceticus strain 1904T (= DSM 11585T). (+info)Towards understanding the first genome sequence of a crenarchaeon by genome annotation using clusters of orthologous groups of proteins (COGs). (6/102)
BACKGROUND: Standard archival sequence databases have not been designed as tools for genome annotation and are far from being optimal for this purpose. We used the database of Clusters of Orthologous Groups of proteins (COGs) to reannotate the genomes of two archaea, Aeropyrum pernix, the first member of the Crenarchaea to be sequenced, and Pyrococcus abyssi. RESULTS: A. pernix and P. abyssi proteins were assigned to COGs using the COGNITOR program; the results were verified on a case-by-case basis and augmented by additional database searches using the PSI-BLAST and TBLASTN programs. Functions were predicted for over 300 proteins from A. pernix, which could not be assigned a function using conventional methods with a conservative sequence similarity threshold, an approximately 50% increase compared to the original annotation. A. pernix shares most of the conserved core of proteins that were previously identified in the Euryarchaeota. Cluster analysis or distance matrix tree construction based on the co-occurrence of genomes in COGs showed that A. pernix forms a distinct group within the archaea, although grouping with the two species of Pyrococci, indicative of similar repertoires of conserved genes, was observed. No indication of a specific relationship between Crenarchaeota and eukaryotes was obtained in these analyses. Several proteins that are conserved in Euryarchaeota and most bacteria are unexpectedly missing in A. pernix, including the entire set of de novo purine biosynthesis enzymes, the GTPase FtsZ (a key component of the bacterial and euryarchaeal cell-division machinery), and the tRNA-specific pseudouridine synthase, previously considered universal. A. pernix is represented in 48 COGs that do not contain any euryarchaeal members. Many of these proteins are TCA cycle and electron transport chain enzymes, reflecting the aerobic lifestyle of A. pernix. CONCLUSIONS: Special-purpose databases organized on the basis of phylogenetic analysis and carefully curated with respect to known and predicted protein functions provide for a significant improvement in genome annotation. A differential genome display approach helps in a systematic investigation of common and distinct features of gene repertoires and in some cases reveals unexpected connections that may be indicative of functional similarities between phylogenetically distant organisms and of lateral gene exchange. (+info)Axial differences in community structure of Crenarchaeota and Euryarchaeota in the highly compartmentalized gut of the soil-feeding termite Cubitermes orthognathus. (7/102)
Methanogenesis represents an important electron sink reaction in the hindgut of soil-feeding termites. This is the first comprehensive analysis of the archaeal community structure within the highly compartmentalized intestinal tract of a humivorous insect, combining clonal analysis and terminal restriction fragment (T-RF) length polymorphism (T-RFLP) fingerprinting of the archaeal communities in the different gut compartments of Cubitermes orthognathus. We found that the morphological and physicochemical heterogeneity of the gut is reflected in a large phylogenetic diversity and pronounced axial differences in the composition of the archaeal gut microbiota, notably among those clones or ribotypes that could be assigned to methanogenic taxa. Comparative analysis of the relative frequencies of different archaeal lineages among the small-subunit rRNA gene (SSU rDNA) clones and their corresponding T-RF indicated that the archaeal community in the anterior, extremely alkaline hindgut compartment (P1) consists mainly of members of the Methanosarcinaceae, whereas Methanobacteriaceae and Methanomicrobiales predominate in the subsequent, more posterior compartments (P3/4a and P4b). The relative abundance of Thermoplasmales increased towards the rectum (P5). SSU rDNA sequences representing Crenarchaeota, which have not yet been reported to occur in the intestinal tracts of arthropods, were detected in all gut sections. We discuss how the spatial distribution of methanogenic populations may be linked to axial heterogeneity in the physicochemical gut conditions and to functional adaptations to their respective ecological niches. (+info)Kinetic study of sn-glycerol-1-phosphate dehydrogenase from the aerobic hyperthermophilic archaeon, Aeropyrum pernix K1. (8/102)
A gene having high sequence homology (45-49%) with the glycerol-1-phosphate dehydrogenase gene from Methanobacterium thermoautotrophicum was cloned from the aerobic hyperthermophilic archaeon Aeropyrum pernix K1 (JCM 9820). This gene expressed in Escherichia coli with the pET vector system consists of 1113 nucleotides with an ATG initiation codon and a TAG termination codon. The molecular mass of the purified enzyme was estimated to be 38 kDa by SDS/PAGE and 72.4 kDa by gel column chromatography, indicating presence as a dimer. The optimum reaction temperature of this enzyme was observed to be 94-96 degrees C at near neutral pH. This enzyme was subjected to two-substrate kinetic analysis. The enzyme showed substrate specificity for NAD(P)H-dependent dihydroxyacetone phosphate reduction and NAD(+)-dependent glycerol-1-phosphate (Gro1P) oxidation. NADP(+)-dependent Gro1P oxidation was not observed with this enzyme. For the production of Gro1P in A. pernix cells, NADPH is the preferred coenzyme rather than NADH. Gro1P acted as a noncompetitive inhibitor against dihydroxyacetone phosphate and NAD(P)H. However, NAD(P)(+) acted as a competitive inhibitor against NAD(P)H and as a noncompetitive inhibitor against dihydroxyacetone phosphate. This kinetic data indicates that the catalytic reaction by glycerol- 1-phosphate dehydrogenase from A. pernix follows a ordered bi-bi mechanism. (+info)
Cultivation of mesophilic soil crenarchaeotes in enrichment cultures from plant roots<...
Diversity of Miscellaneous Crenarchaeotic Group archaea in freshwater karstic lakes and their segregation between planktonic...
KEGG PATHWAY: Terpenoid backbone biosynthesis - Cenarchaeum symbiosum
Acidilobus aceticus Prokofeva et al., 2000
SWISS-MODEL Repository | A0RTP4
Acidilobaceae
Award: OCE-1034943 | BCO-DMO
Persson, Bengt
Lipid biosynthesis of Nitrosopumilus maritimus dissected by lipid specific radioisotope probing (lipid-RIP) under contrasting...
Genomics Sheds Light on Metabolism of Cryptic Marine Microbes
Frontiers | Archaeal S-Layers: Overview and Current State of the Art | Microbiology
Sea Around Us partner, FishBase, awarded Le Cren Medal | Sea Around Us
First insight into the genome of an uncultivated crenarchaeote from soil<...
alaS protein (Nitrosopumilus maritimus) - STRING interaction network
Nmar 1564 protein (Nitrosopumilus maritimus) - STRING interaction network
UniProt: A0A0M0BRM1 9ARCH
THE RESOLVE EARL CONTRACTED FOR TOWAGE OF COSTA CONCORDIA - Resolve Marine Group
Hotel Villa Belle-Rive, Remich, Luxembourg - Booking.com
Category:Euryarchaeota - Wikimedia Commons
Archea - Wikipedie
OPUS at UTS: A metaproteomic assessment of winter and summer bacterioplankton from Antarctic Peninsula coastal surface waters. ...
ToL People for Crenarchaeota
Aeropyrum pernix Sako et al., 1996
Domain Archaea - Classification - Systema Naturae 2000
Korarqueotas - Wikipedia, a enciclopedia libre
CAZy - Archaea
SWISSPROT: D7D8S0 STAHD
atomic force microscopy | mBio
Hsuan-Ching Ho - Webvision
Arqueas - Wikipedia, a enciclopedia libre
Arqueas - Wikipedia, a enciclopedia libre
future - Cren Ca
português (Brasil)
China Merchants Group joins race to buy Baltic Exchange: Sources
Outside the unusual cell wall of hyperthermophilic archaeon Aeropyrum pernix | Molecular & Cellular Proteomics
OPUS at UTS: Global distribution and diversity of coral-associated Archaea and their possible role in the coral holobiont...
Enzymatic Degradation of PrPSc by a Protease Secreted from Aeropyrum pernix K1 - pdf descargar
Archives | Publications | BIOS - Bermuda Institute of Ocean Sciences
What Are the Three Types of Archaea? | Reference.com
The respiratory microbiota: new insights into pulmonary tuberculosis | BMC Infectious Diseases | Full Text
HOGENOM: VULDI 1 PE807
Tokio Marine Group | Alzheimers Association
Tokio Marine Group | Alzheimers Association
WEI EAST China Herbal Hand & Body Perfection 3.5 OZ
Aether Fabulae - A História de Pran [Em Revisão] - Di Toledo - Wattpad
Seleção da carga no treinamento para o alto rendimento e saúde - Nerdflix - Paulo Gentil
Copper requirements of the ammonia-oxidizing archaeon Nitrosopumilus maritimus SCM1 and implications for nitrification in the...
Korarchaeota - Wikipedia
View source for Staphylothermus marinus - microbewiki
Euryarchaeota - Wikipedia
Clusters of orthologous genes for 41 archaeal genomes and implications for evolutionary genomics of archaea | Biology Direct |...
Advances in Microbial Physiology, Volume 57 by Robert K. Poole (ed.) - Manuel Monroy Book Archive
TreeBASE Search-Citation for study 370
Archaea - Academic Kids
Dark ocean bacteria discovered to play large role in carbon capture
Archaea - Wikipedia
ASMscience | Genetics of Archaea
A strong filter effect of the East China Sea land bridge for East Asias temperate plant species: inferences from molecular...
Validation of a green-red quasi-analytical algorithm for inherent optical properties in East China Sea | (2018) | Shi | ...
Parcourir les catégories - lookformedical.com
Arkæer - Wikipedia, den frie encyklopædi
Arkæer - Wikipedia, den frie encyklopædi
Arkæer - Wikipedia, den frie encyklopædi
Gear and methods are developed for sampling at mesopelagic depths - MEESO
CAZy - Archaea
Defining Deep sea
East China - Cedar Falls on the App Store
China Projecting Power in South and East China Seas | Page 25 | Secret Projects Forum
Technology - Cren Ca
BEARING, BALL, AIRFRAME, ANTI-FRICTION, HEAVY DUTY, CORROSION RESISTANT NITROGEN STEEL (CREN) - SAE International
ApeEx03F01 - Aeropyrum pernix
Aeropyrum pernix ovoid virus 1 (APOV1)
Japan deporting Chinese held over island landing - CNN
Chinese Vessels Near Disputed Islands
Healthcare Analysts Chime In on Relypsa Inc (RLYP) and Pernix Therapeutics Holdings Inc (PTX) Following Launch Delay and...
MCG10抗体|Abcam中国|Anti-MCG10抗体(ab63948)
Archaea
The Crenarchaeota also use the reverse Krebs cycle while the Euryarchaeota also use the reductive acetyl-CoA pathway. Carbon ... Some marine Crenarchaeota are capable of nitrification, suggesting these organisms may affect the oceanic nitrogen cycle, ... April 2007). "Putative ammonia-oxidizing Crenarchaeota in suboxic waters of the Black Sea: a basin-wide ecological study using ... ISBN 978-0-387-24143-2. Barns S, Burggraf S (1997). "Crenarchaeota". The Tree of Life Web Project. Version 01 January 1997. ...
TACK
It has been proposed that the TACK clade be classified as Crenarchaeota and that the traditional "Crenarchaeota" be classified ... Crenarchaeota. It is the best known edge and the most abundant archaea in the marine ecosystem. They were previously called ... TACK is a group of archaea acronym for Thaumarchaeota, Aigarchaeota, Crenarchaeota and Korarchaeota, the first groups ...
Thermoprotei
Crenarchaeota phy. nov.". In DR Boone; RW Castenholz (eds.). Bergey's Manual of Systematic Bacteriology Volume 1: The Archaea ... The Thermoprotei is a class of the Crenarchaeota. The currently accepted taxonomy is based on the List of Prokaryotic names ...
Sulfolobales
Exposure of Sulfolobus solfataricus to the DNA damaging agents UV-irradiation, bleomycin or mitomycin C induces cellular aggregation.[2] Other physical stressors, such as pH or temperature shift, do not induce aggregation, suggesting that induction of aggregation is caused specifically by DNA damage. Ajon et al.[3] showed that UV-induced cellular aggregation mediates chromosomal marker exchange with high frequency. Recombination rates exceeded those of uninduced cultures by up to three orders of magnitude. Frols et al.[2][4] and Ajon et al.[3] hypothesized that the UV-inducible DNA transfer process and subsequent homologous recombinational repair represents an important mechanism to maintain chromosome integrity. This response may be a primitive form of sexual interaction, similar to the more well-studied bacterial transformation that is also associated with DNA transfer between cells leading to homologous recombinational repair of DNA damage.[5] In another related species, Sulfolobus ...
Category:Archaea
Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization ...
Archaeosine synthase
"Diversity of archaeosine synthesis in crenarchaeota". ACS Chemical Biology. 7 (2): 300-5. doi:10.1021/cb200361w. PMC 3289047. ...
Dolichol
Meyer, Benjamin H.; Albers, Sonja-Verena (2013-02-01). "Hot and sweet: protein glycosylation in Crenarchaeota". Biochemical ...
Outline of life forms
Crenarchaeota - a phylum of the Archaea kingdom. Initially Thermoprotei Sulfolobales - grow in terrestrial volcanic hot springs ...
Archea - Wikipedie
Crenarchaeota, The Tree of Life Web Project [online]. 1997. Crenarchaeota Dostupné online.. ... Crenarchaeota colonize terrestrial plant roots. Environmental Microbiology. 2000, roč. 2, čís. 5, s. 495-505. Dostupné online. ... Putative ammonia-oxidizing Crenarchaeota in suboxic waters of the Black Sea: a basin-wide ecological study using 16S ribosomal ... Simon H. M., Dodsworth J. A., Goodman R. M. Crenarchaeota colonize terrestrial plant roots. Environ. Microbiol.. October 2000, ...
Conserved signature indels
However there are very few molecular markers that can distinguish this group of archaea from the phylum Crenarchaeota. A ... Additionally, a number of CSIs were found that are specific for different orders of Crenarchaeota- 3 CSIs for Sulfolobales, 5 ... Gupta, Radhey S.; Shami, Ali (2010). "Molecular signatures for the Crenarchaeota and the Thaumarchaeota". Antonie van ... The signatures described provide novel means for distinguishing Crenarchaeota and Thaumarchaeota, additionally they could be ...
Lipothrixviridae
Thermophilic archaea in the kingdom Crenarchaeota serve as natural hosts. There are currently eleven species in this family, ...
Archaellum
In Crenarchaeota PibD and in euryarchaeota FlaK are PilD homologs, which are essential for the maturation of the archaellins. ... ArlX acts as a scaffold around the motor in Crenarchaeota. ArlF and ArlG are potentially part of the stator of the archaellum ... The prepilin peptidase (called PibD in crenarchaeota and FlaK in euryarchaeota) is essential for the maturation of the ... FlaX is only found in Crenarchaeota and FlaCDE (which can exist as individual proteins or as fusion proteins) in Euryarchaeotes ...
Nitrososphaera gargensis
"Mesophilic Crenarchaeota: proposal for a third archaeal phylum, the Thaumarchaeota." Nature Reviews Microbiology6.3 (2008): 245 ... gargensis allows scientists to expand this synthesis also to the Group I.1b Crenarchaeota. These discoveries indicate that ... https://www.researchgate.net/publication/5576617_Brochier-Armanet_C_Boussau_B_Gribaldo_S_Forterre_P_Mesophilic_Crenarchaeota_ ...
Fission (biology)
Crenarchaeota possess neither a cell wall nor the FtsZ mechanism. They use a primitive version of the eukaryotic ESCRT-III ...
Crenarchaeol
It was named for the phylum Crenarchaeota, to which the ammonia-oxidizing pelagic archaea that produce crenarchaeol were ... Brochier-Armanet C, Boussau B, Gribaldo S, Forterre P (March 2008). "Mesophilic Crenarchaeota: proposal for a third archaeal ... formerly classified as the Marine Group 1 Crenarchaeota). It has been confirmed to be produced by pure cultures of the pelagic ... a cultivated representative of the cosmopolitan mesophilic group I Crenarchaeota". Applied and Environmental Microbiology. 74 ( ...
Thaumarchaeota
Eocyte hypothesis Brochier-Armanet C, Boussau B, Gribaldo S, Forterre P (March 2008). "Mesophilic Crenarchaeota: proposal for a ... symbiosum was sequenced and found to differ significantly from other members of the hyperthermophilic phylum Crenarchaeota. ...
Haloarchaea bahasa Indonesia, ensiklopedia bebas
Qiu, X.X., Zhao, M.L., Han, D., Zhang, W.J., Dyall-Smith, M.L., Cui, H.L. (2013) "Taxonomic study of the genera Halogeometricum and Halosarcina: transfer of Halosarcina limi and Halosarcina pallida to the genus Halogeometricum as Halogeometricum limi comb. nov. and Halogeometricum pallidum comb. nov., respectively." Int J Syst Evol Microbiol. 63: 3915-3919 ...
Kerajaan (biologi) bahasa Indonesia, ensiklopedia bebas
Sejak pertengahan 1970-an, semakin banyak riset di bidang komparasi gen pada level molekular (dimulai dengan gen ribosomal RNA) sebagai faktor utama dalam klasifikasi; kemiripan genetik ditekankan terhadap penampilan luar dan perilaku. Tingakatan taxonomi, termasuk kingdom, adalah kelompok organisme dengan nenek moyang yang sama, baik monofilik (semua keturunan dari satu nenek moyang yang sama) atau parafilik (hanya beberapa keturunan dari satu nenek moyang yang sama). Berdasarkan studi RNA, Carl Woese membagi prokaryote (Kingdom Monera) menjadi dua kelompok, yaitu Eubacteria dan Archaebacteria, karena ada banyak perbedaan genetik antara dua kelompok ini. Eukaryote , seperti tumbuhan, fungi dan hewan mungkin tampak serupa, tetapi mirip dalam genetiknya di tingkatan molekular dibandingkan Eubacteria atau Archaebacteria. (Ditemukan juga bahwa eukaryote lebih dekat secara genetik dengan Archaebacteria daripada dengan Eubacteria.) Woese menciptakan sistem "tiga kingdom utama" atau "urkingdom".[8] In ...
Korarchaeota bahasa Indonesia, ensiklopedia bebas
Crenarchaeota dan Euryarchaeota.[3] Analisis genom satu Korarchaeota yang diperkaya dari kultur campuran mengungkapkan sejumlah ... fitur seperti-Crenarchaeota dan Euryarchaeota dan mendukung hipotesis dari keturunan bercabang awal.[4] ...
Arkæer, den frie encyklopædi
Noget forskning tyder på, at Euryarchaeota er tættere på eukaryote end på Crenarchaeota. Er dette tilfældet, vil riget Archaea ...
Arkea bahasa Indonesia, ensiklopedia bebas
1997) Crenarchaeota. Version 1 January 1997. in The Tree of Life Web Project ... Sebuah superfilum - TACK - telah diusulkan yang mencakup Thaumarchaeota, Aigarchaeota, Crenarchaeota, dan Korarchaeota.[24] ... Crenarchaeota • Grylloblattidae • Halobacteria • Halobacterium • Helaeomyia petrolei • Lubang hidrotermal • Methanopyrus • Gua ... Faktor rumit termasuk klaim bahwa hubungan antara eukariota dan filum arkea Crenarchaeota lebih dekat daripada hubungan antara ...
Sulfolobus
Both species lack the genes ftsZ and minD, which has been characteristic of sequenced Crenarchaeota. They also code for citrate ... a model organism of the Crenarchaeota". Journal of Bacteriology. 187 (14): 4992-9. doi:10.1128/JB.187.14.4992-4999.2005. PMC ...
List of sequenced archaeal genomes
Currently in this list there are 39 genomes belonging to Crenarchaeota species, 105 belonging to the Euryarchaeota, 1 genome ... July 2005). "The genome of Sulfolobus acidocaldarius, a model organism of the Crenarchaeota". Journal of Bacteriology. 187 (14 ... 2011). "The complete genome sequence of Thermoproteus tenax: a physiologically versatile member of the Crenarchaeota". PLOS ONE ... complete genome sequence of Staphylothermus marinus reveals differences in sulfur metabolism among heterotrophic Crenarchaeota ...
Saccharolobus shibatae
... is an archaeal species belongs to the kingdom Crenarchaeota. Saccharolobus shibatae was described for ...
Microorganism
Only now are scientists beginning to realize how common archaea are in the environment, with Crenarchaeota being the most ... "Distribution of Membrane Lipids of Planktonic Crenarchaeota in the Arabian Sea". Appl. Environ. Microbiol. 68 (6): 2997-3002. ...
Hydrothermal vent microbial communities
Species that perform AOM include Archaea of phyllum Crenarchaeota and Thermococcus. Production of methane through ...
Aryldialkylphosphatase
... a model organism of the Crenarchaeota". Journal of Bacteriology. 187 (14): 4992-9. doi:10.1128/JB.187.14.4992-4999.2005. PMC ...
باستانیان - ویکیپدیا، دانشنامهٔ آزاد
1997) Crenarchaeota. Version 1 January 1997. in The Tree of Life Web Project ... Gupta R. S., Shami A. (2011). "Molecular signatures for the Crenarchaeota and the Thaumarchaeota". Antonie van Leeuwenhoek. 99 ... A superphylum - TACK - has been proposed that includes the Thaumarchaeota, Aigarchaeota, Crenarchaeota, and Korarchaeota.[24] ... Simon HM; Dodsworth JA; Goodman RM (October 2000). "Crenarchaeota colonize terrestrial plant roots". Environ. Microbiol. 2 (5 ...
Root microbiome
Archaeal phyla found in the root microbiome include Euryarchaeota, Thaumarchaeota, and Crenarchaeota. The presence and relative ...
Euryarchaeota
It is one of two phyla of archaea, the other being crenarchaeota. Euryarchaeota are highly diverse and include methanogens, ...
Crenarchaeota
... arent just for microbiologists.... These unusual properties of Crenarchaeota have attracted the attention of a ... Crenarchaeota Sue Barns and Siegfried Burggraf Click on an image to view larger version & data in a new window ... For more information about low-temperature Crenarchaeota, have a look at the CrenPage, a Web site of Norm Paces lab at UC ... The kingdom Crenarchaeota has the distinction of including microbial species with the highest known growth temperatures of any ...
Category:Crenarchaeota - Wikimedia Commons
Crenarchaeota (sq); Crenarchaeota (tl); Crenarchaeota (vi); Crenarchaeota (en); Crenarchaeota (war); Crenarchaeota (pl); 泉古菌門 ( ... Crenarchaeota (cs); Crenarchaeota (it); Crenarchaeota (fr); Crenarchaeota (jv); Crenarchaeota (et); Crenarchaeota (pt); ... Crenarchaeota (es); Crenarchaeota (hu); Crenarchaeota (is); Crenarchaeota (eu); Crenarchaeota (ast); кренархеоты (ru); ... Crenarchaeota (ro); クレンアーキオータ門 (ja); Crenarchaeota (ia); Crenarchaeota (sv); Crenarchaeota (uk); Crenarchaeota (la); 泉古菌門 (zh- ...
ToL People for Crenarchaeota
Labor Becker, Olgemöller & Kollegen, Munich, Germany (Crenarchaeota) ToL Media Contributors for Crenarchaeota. * Sue Barns Los ... ToL Scientific Contributors for Crenarchaeota. * Sue Barns Los Alamos National Laboratory, New Mexico, USA (Crenarchaeota) ... Other Crenarchaeota biologists and enthusiasts. * Jon Moore Florida Atlantic University (Acantheae, Acanthopterygii, Acanthus ... Crenarchaeota, Cryptalyra, Cryptomycocolax, Cryptoteuthis brevibracchiata, Cystobasidiomycetes, Dacrymycetales, Delitschiaceae ...
Crenarchaeota - Wikipedia
Search Species2000 page for Crenarchaeota MicrobeWiki page for Crenarchaeota LPSN page for Crenarchaeota Crenarchaeota from the ... PubMed references for Crenarchaeota PubMed Central references for Crenarchaeota Google Scholar references for Crenarchaeota ... The Crenarchaeota (also known as Crenarchaea or eocytes) are archaea that have been classified as a phylum of the Archaea ... Crenarchaeota phy. nov.". In DR Boone, RW Castenholz (eds.). Bergeys Manual of Systematic Bacteriology Volume 1: The Archaea ...
Crenarchaeota
The Crenarchaeota, one of the meanwhile four kingdoms of the archaeal domain, consist primarily of hyperthermophiles, thriving ... The Crenarchaeota, one of the meanwhile four kingdoms of the archaeal domain, consist primarily of hyperthermophiles, thriving ... Phylogenetic tree derived from 16S rRNA sequences data for the Crenarchaeota and some representatives of the Euryarchaeota. The ... Hügler M, Huber H, Stetter KO and Fuchs G (2003) Autotrophic carbon dioxide fixation pathways in archaea (Crenarchaeota). ...
The Complete Genome Sequence of Thermoproteus tenax: A Physiologically Versatile Member of the Crenarchaeota
Derived from the gene content, T. tenax is a representative member of the Crenarchaeota. The organism is strictly anaerobic and ... The Complete Genome Sequence of Thermoproteus tenax: A Physiologically Versatile Member of the Crenarchaeota. ... which is not accompanied by a distinct increase of genome size or information density as compared to other Crenarchaeota. T. ...
Phylogenetic Analysis of Nonthermophilic Members of the Kingdom Crenarchaeota and Their Diversity and Abundance in Soils |...
The kingdom Crenarchaeotais one of the two kingdoms that comprise the archaeal domain. The members of the Crenarchaeota that ... positions within the thermophilic Crenarchaeota, and positions ancestral to the Crenarchaeota (3). ... The nonthermophilicCrenarchaeota accounted for as much as 1.42% ± 0.42% of the 16S rRNA in the soils analyzed. ... PCR amplification and cloning of Crenarchaeota 16S rDNA.DNA purified from soil was used as a template for PCR. The archaea- ...
Crenarchaeota
"Archaeal Diversity and the Prevalence of Crenarchaeota in Salt Marsh " by Katelyn A. Nelson, Nicole S. Moin et al.
Group I.1a Crenarchaeota dominated at two sites, while group I.3b Crenarchaeota sequences were most abundant at a third site. ... Group I.1a Crenarchaeota dominated at two sites, while group I.3b Crenarchaeota sequences were most abundant at a third site. ... Nelson, Katelyn A.; Moin, Nicole S.; and Bernhard, Anne E., "Archaeal Diversity and the Prevalence of Crenarchaeota in Salt ...
Crenarchaeota - Wikipedia
Crenarchaeota ya iku filum kang kalebu domain Archaea.[2] Mikroorganisme kang kalebu filum kasebar ing habitat kang panas ... Akeh-akèhé Crenarchaeota hipertermofil diisolasi saka lemah panas geotermal lan banyu kang ngedhut sulfur lan sulfida.[3] ... Mayoritas Crenarchaeota hipertermofil ditemokaka ing laladan nétral atawa kanthi tingkatake keasaman sedang, lan spésies liyané ... banget utawa atis banget kaya ta banyu umub lan banyu es.[2] Kabèh Crenarchaeota kang kasil dikultur nganti seprene minangka ...
Structural Biochemistry/Three Domains of Life/Archaea - Wikibooks, open books for an open world
Crenarchaeota[edit]. Crenarchaeota consists of these following divisions:. a. Hyperthermophiles: are thermophilic (love hot ... Crenarchaeota and Euryarchaeota are the only two that have been heavily researched. The other two other groups have been ... Under the archaea group, there are four phyla based on rRNA trees: Crenarchaeota, Euryarchaeota, Korarchaeota, and ... Some place eukaryotes closer to Eurarchaeota than Crenarchaeota are, although the membrane chemistry suggests otherwise. ...
Frontiers | Archaeal S-Layers: Overview and Current State of the Art | Microbiology
S-layers exclusive to the Crenarchaeota have also been described, which are composed of two proteins. Information regarding S- ... S-layers exclusive to the Crenarchaeota have also been described, which are composed of two proteins. Information regarding S- ... The hexagonal lattice type is dominant within the phylum Euryarchaeota, while in the Crenarchaeota this feature is mainly ... The hexagonal lattice type is dominant within the phylum Euryarchaeota, while in the Crenarchaeota this feature is mainly ...
Structural organization of essential iron-sulfu...
CiteSeerX - Citation Query Predicting transmembrane protein topology with a hidden Markov model : application to complete...
Sulfolobales - Wikipedia
Exposure of Sulfolobus solfataricus to the DNA damaging agents UV-irradiation, bleomycin or mitomycin C induces cellular aggregation.[2] Other physical stressors, such as pH or temperature shift, do not induce aggregation, suggesting that induction of aggregation is caused specifically by DNA damage. Ajon et al.[3] showed that UV-induced cellular aggregation mediates chromosomal marker exchange with high frequency. Recombination rates exceeded those of uninduced cultures by up to three orders of magnitude. Frols et al.[2][4] and Ajon et al.[3] hypothesized that the UV-inducible DNA transfer process and subsequent homologous recombinational repair represents an important mechanism to maintain chromosome integrity. This response may be a primitive form of sexual interaction, similar to the more well-studied bacterial transformation that is also associated with DNA transfer between cells leading to homologous recombinational repair of DNA damage.[5] In another related species, Sulfolobus ...
The complete genome of hyperthermophile Methanopyrus kandleri AV19 and monophyly of archaeal methanogens | PNAS
The complete genome of hyperthermophile Methanopyrus kandleri AV19 and monophyly of archaeal methanogens. - PubMed - NCBI
Category:Archaea - Wikipedia
Microorganisms | Free Full-Text | A Novel Bioinformatics Strategy to Analyze Microbial Big Sequence Data for Efficient...
Euryarchaeota Movies
Archea - Wikipedie
Crenarchaeota, The Tree of Life Web Project [online]. 1997. Crenarchaeota Dostupné online.. ... Crenarchaeota colonize terrestrial plant roots. Environmental Microbiology. 2000, roč. 2, čís. 5, s. 495-505. Dostupné online. ... Putative ammonia-oxidizing Crenarchaeota in suboxic waters of the Black Sea: a basin-wide ecological study using 16S ribosomal ... Simon H. M., Dodsworth J. A., Goodman R. M. Crenarchaeota colonize terrestrial plant roots. Environ. Microbiol.. October 2000, ...
Sue Barns Tree of Life Contributor Profile
Big Blue Vent - GMTL - The University of Texas at Dallas
Archaea Signal Recognition Particle Shows the Way
Crenarchaeota. Acidianus ambivalens. SRP54NG. X-Ray. 1J8M,1J8Y. [19]. Sulfolobus solfactaricus. SRP54 with helix 8. X-Ray. 1QZW ... In the FtsY sequences of the uncultured marine Crenarchaeota we discovered a C-terminal proline-rich extension, named R for its ... Indicated are the archaea subdomains (Crenarchaeota or Euryarchaeota), species names, components, and methods (X-Ray ...
Six Kingdom System of Classification by Hiba Chughtai on Prezi
Biology - Wikiversity
The above illustration of Earths sea surface temperature was obtained from two weeks of infrared observations by the Advanced Very High Resolution Radiometer (AVHRR), an instrument on board NOAA-7 during July 1984. Temperatures are color coded with red being warmest and decreasing through oranges, yellows, greens, and blues. Temperature patterns seen in this image are the result of many influences, including the circulation of the ocean, surface winds, and solar heating. The image indicates a large pool of warm water in the Western Pacific and a tongue of relatively cold water extending along the Equator westward from South America. Every few years, there occurs an interrelated set of changes in the global atmospheric and oceanic circulation known as an El Nino in which the region of warm equatorial water in the West extends eastward across the Pacific and blankets the cool, productive regions along the coast of South America. Fish, birds, and marine mammals that depend upon the normally ...
SWISSPROT: C4KK39 SULIK
Haloarchaea - Wikipedia bahasa Indonesia, ensiklopedia bebas
Qiu, X.X., Zhao, M.L., Han, D., Zhang, W.J., Dyall-Smith, M.L., Cui, H.L. (2013) "Taxonomic study of the genera Halogeometricum and Halosarcina: transfer of Halosarcina limi and Halosarcina pallida to the genus Halogeometricum as Halogeometricum limi comb. nov. and Halogeometricum pallidum comb. nov., respectively." Int J Syst Evol Microbiol. 63: 3915-3919 ...
HOGENOM: SULID 1 PE1303
Kerajaan (biologi) - Wikipedia bahasa Indonesia, ensiklopedia bebas
Sejak pertengahan 1970-an, semakin banyak riset di bidang komparasi gen pada level molekular (dimulai dengan gen ribosomal RNA) sebagai faktor utama dalam klasifikasi; kemiripan genetik ditekankan terhadap penampilan luar dan perilaku. Tingakatan taxonomi, termasuk kingdom, adalah kelompok organisme dengan nenek moyang yang sama, baik monofilik (semua keturunan dari satu nenek moyang yang sama) atau parafilik (hanya beberapa keturunan dari satu nenek moyang yang sama). Berdasarkan studi RNA, Carl Woese membagi prokaryote (Kingdom Monera) menjadi dua kelompok, yaitu Eubacteria dan Archaebacteria, karena ada banyak perbedaan genetik antara dua kelompok ini. Eukaryote , seperti tumbuhan, fungi dan hewan mungkin tampak serupa, tetapi mirip dalam genetiknya di tingkatan molekular dibandingkan Eubacteria atau Archaebacteria. (Ditemukan juga bahwa eukaryote lebih dekat secara genetik dengan Archaebacteria daripada dengan Eubacteria.) Woese menciptakan sistem "tiga kingdom utama" atau "urkingdom".[8] In ...
Archaea20
- The Crenarchaeota (also known as Crenarchaea or eocytes) are archaea that have been classified as a phylum of the Archaea domain. (wikipedia.org)
- Initially, the Crenarchaeota were thought to be sulfur-dependent extremophiles but recent studies have identified characteristic Crenarchaeota environmental rRNA indicating the organisms may be the most abundant archaea in the marine environment. (wikipedia.org)
- Crenarchaeota comprise one kingdom in the larger domain of Archaea. (tolweb.org)
- However, like all Archaea, Crenarchaeota are prokaryotic, and are bounded by ether-linked lipid membranes which contain isoprinoid side chains instead of fatty acids. (tolweb.org)
- Hügler M, Huber H, Stetter KO and Fuchs G (2003) Autotrophic carbon dioxide fixation pathways in archaea (Crenarchaeota). (els.net)
- Crenarchaeota ya iku filum kang kalebu domain Archaea . (wikipedia.org)
- As arqueas ( Archaea , do grego ἀρχαῖα 'os antigos') son un grupo de microorganismos unicelulares de morfoloxía procariótica (sen núcleo nin, en xeral, orgánulos membranosos internos), que forman un dos tres grandes dominios dos seres vivos, e que son diferentes das bacterias . (wikipedia.org)
- As Archaea divídense en cinco filos recoñecidos, pero pénsase que poden haber máis. (wikipedia.org)
- Nonextremophilic archaea (Crenarchaeota and Euryarchaeota) are now recognized to be widespread in the ocean ( 12 , 13 ), but our current understanding of their physiology and biogeochemical function remains largely speculative. (pnas.org)
- Archaea is divided into two kingdoms, the Euryarchaeota and the Crenarchaeota , with the possibility of a third kingdom, the Korarchaeota ( 6 , 39 ). (asm.org)
- The Crenarchaeota phylum of archaea features the action of the three proteins, CdvABC. (tudelft.nl)
- As of 2010 more than 250 species of Archaea had been described, most fitting into one of two groups, Euryarchaeota and Crenarchaeota. (eol.org)
- The three types of archaea are the crenarchaeota, the euryarchaeota and the korarchaeota. (reference.com)
- Likewise, Archaea were long thought to exist solely in "extreme" environments, but 16S rRNA gene sequencing analysis indicates that Crenarchaeota live in temperate soils ( 3 , 26 ) and on the roots of plants ( 23 ). (asm.org)
- Within the Archaea, the kingdoms Crenarchaeota and Euryarchaeota exhibit a profound divergence. (unt.edu)
- Tras el analisis del ARN ribosomal de la subunidad 16S de las Archaea se distinguieron dos grupos filogeneticamente diferentes: Crenarchaeota y Euryarchaeota (Figura 1). (thefreedictionary.com)
- The domain Archaea comprises two kingdoms, the Euryarchaeota and Crenarchaeota (2). (thefreedictionary.com)
- These sequences were hypothesized to belong to an ancient division, the "Korarchaeota, " that diverged from the Archaea lineage before the separation of Crenarchaeota and Euryarchaeota (2). (psu.edu)
- Further molecular analysis has shown that domain Archaea consists of two major subdivisions, the Crenarchaeota and the Euryarchaeota , and one minor ancient lineage, the Korarchaeota . (britannica.com)
- Around the turn of the century, scientists had classified just two phyla of Archaea: the heat-loving Crenarchaeota and the Euryarchaeota, which includes methanogens and halophiles. (the-scientist.com)
Euryarchaeota14
- One possible piece of evidence supporting a close relationship between Crenarchaea and eukaryotes is the presence of a homolog of the RNA polymerase subunit Rbp-8 in Crenarchea but not in Euryarchaea Euryarchaeota See the NCBI webpage on Crenarchaeota C.Michael Hogan. (wikipedia.org)
- Phylogenetic tree derived from 16S rRNA sequences data for the Crenarchaeota and some representatives of the Euryarchaeota. (els.net)
- The hexagonal lattice type is dominant within the phylum Euryarchaeota, while in the Crenarchaeota this feature is mainly associated with specific orders. (frontiersin.org)
- [14] Většina z těch nejznámějších archeí se dnes řadí do dvou kmenů, Euryarchaeota a Crenarchaeota . (wikipedia.org)
- Noget forskning tyder på, at Euryarchaeota er tættere på eukaryote end på Crenarchaeota. (wikipedia.org)
- Destes grupos, os Crenarchaeota e os Euryarchaeota son os máis intensamente estudados. (wikipedia.org)
- A análise das súas secuencias de ARNr de 16 S suxire que estas especies non forman parte dos dous principais grupos de arqueas, Crenarchaeota e Euryarchaeota [ 5 ] . (wikipedia.org)
- Parece que son un grupo basal de arqueas, xa que teñen cracterísitcas tanto de Crenarchaeota coma de Euryarchaeota. (wikipedia.org)
- Sequences of 198 clones from nine samples covering three seasons and all depths grouped with marine group I Crenarchaeota (111 clones), marine group II Euryarchaeota (86 clones), and group IV Euryarchaeota (1 clone). (asm.org)
- [16] Večina dobro raziskanih arhej, ki se jih lahko kultivira na gojiščih, spada v debli pravih arhej (Euryarchaeota) in krenarhej (Crenarchaeota). (wikipedia.org)
- Detection of Euryarchaeota and Crenarchaeota in an Oxic Basalt Aquifer. (pointloma.edu)
- In the archaeal communities, microorganisms affiliated with three phyla (Euryarchaeota , Crenarchaeota , and Thaumarchaeota ) were identified. (mcgill.ca)
- The researchers found that Euryarchaeota, Crenarchaeota, Acetothermia, Firmicutes and Planctomycetes were the most abundant bacterial and archael groups. (eurekalert.org)
- The first phylum named was Nanoarchaeota, in 2002, for a tiny deep-sea vent organism that didn't fit into Euryarchaeota or Crenarchaeota.3 In 2013, researchers proposed linking it with the taxa Diapherotrites, Parvarchaeota, Aenigmarchaeota, and Nanohaloarchaeota.4 New phyla have been added since. (the-scientist.com)
Thaumarchaeota3
- Mesophilic Crenarchaeota: proposal for a third archaeal phylum, the Thaumarchaeota. (wikimedia.org)
- Scientists proposed the TACK name in 2011 to encompass the phyla Thaumarchaeota, Aigarchaeota, Crenarchaeota, and Korarchaeota;2 more phyla have been added since. (the-scientist.com)
- And a number of phyla related to Crenarchaeota joined it in a so-called superphylum known as TACK for its founding members (Thaumarchaeota, Aigarchaeota, Crenarchaeota, and Korarchaeota). (the-scientist.com)
Korarchaeota1
- As Korarchaeota só se atoparon en ambientes hidrotermais de altas temperaturas. (wikipedia.org)
Sulfolobus3
- En 1970, Thomas D. Brock, da Universidade de Wisconsin, descubriu a Thermoplasma , unha arquea termoacidófila e en 1972 a Sulfolobus , unha hipertermófila . (wikipedia.org)
- Sulfolobus species are hyperthermophilic Crenarchaeota that live in extremely hot and acidic environments. (rug.nl)
- The structure and evolution of the ribosomal proteins encoded in the spc operon of the archaeon (Crenarchaeota) Sulfolobus acidocaldarius. (ebi.ac.uk)
Kingdoms2
- The Crenarchaeota, one of the meanwhile four kingdoms of the archaeal domain, consist primarily of hyperthermophiles, thriving at temperatures of up to 113°C. They have been isolated from submarine hydrothermal systems or from continental solfataric fields. (els.net)
- The kingdom Crenarchaeota is one of the two kingdoms that comprise the archaeal domain. (asm.org)
RRNA3
- Surprisingly, recent rRNA sequence-based analyses indicate that Crenarchaeota also may be widely distributed in low-temperature environments such as ocean waters and terrestrial sediments and soils (Bintrim 1997, DeLong 1994, Furhman 1992, and Hersberger 1996). (tolweb.org)
- Within the last several years, molecular techniques have uncovered numerous 16S rRNA gene (rDNA) sequences which represent a unique and globally distributed lineage of the kingdom Crenarchaeota that is phylogenetically distinct from currently characterized crenarchaeotal species. (asm.org)
- The nonthermophilic Crenarchaeota accounted for as much as 1.42% ± 0.42% of the 16S rRNA in the soils analyzed. (asm.org)
Hyperthermophilic1
- Since growth temperature and habitat characteristics vary so widely between nonthermophilic and the hyperthermophilic Crenarchaeota , these groups are likely to differ greatly with respect to specific physiology and metabolism. (asm.org)
Nonthermophilic6
- We determined the diversity and abundance of the nonthermophilic members of the Crenarchaeota in soil samples taken from cultivated and uncultivated fields located at the Kellogg Biological Station's Long-Term Ecological Research site (Hickory Corners, Mich.). Clones were generated from 16S rDNA that was amplified by using broad-specificity archaeal PCR primers. (asm.org)
- Phylogenetic analyses included nonthermophilic crenarchaeotal sequences found in public databases and revealed that the nonthermophilic Crenarchaeota group is composed of at least four distinct phylogenetic clusters. (asm.org)
- It is presumed that these members of the Crenarchaeota are nonthermophilic based on the environments in which they have been found (temperatures, −1.5 to 32°C), their phylogenetic distance from the thermophilic members of the Crenarchaeota , and the low G+C contents of their 16S rDNA (51 to 58%) compared to the G+C contents of the thermophilic organisms (60 to 69%) ( 10 , 16 , 28 ). (asm.org)
- In addition, the abundance of nonthermophilic Crenarchaeota in the marine water column and in the oxic region of freshwater sediments suggests that certain members of the nonthermophilic Crenarchaeota are tolerant to oxygen ( 11 , 19 ). (asm.org)
- Members of the nonthermophilic Crenarchaeota have recently been identified in soils, but the abundance and significance of these organisms in soil microbial communities have not been assessed ( 5 , 7 , 17 , 37 ). (asm.org)
- Nonthermophilic members of the kingdom Crenarchaeota are one of the more abundant, widespread, and frequently recovered prokaryotic groups revealed by molecular phylogenetic approaches. (asm.org)
Thermophiles1
- The members of the Crenarchaeota that have been isolated to date are extreme thermophiles that have optimal growth temperatures of more than 80°C. With certain exceptions, these extreme thermophiles are obligate anaerobes with sulfur-dependent metabolisms. (asm.org)
Species1
- The kingdom Crenarchaeota has the distinction of including microbial species with the highest known growth temperatures of any organisms. (tolweb.org)
Sequences5
- Recent analyses of genetic sequences obtained directly from environomental samples, however, indicate the existence of low temperature Crenarchaeota, which have not yet been cultivated. (tolweb.org)
- This collection of more than 100 16S rDNA sequences represents a diverse and globally distributed group of organisms that belong to the kingdom Crenarchaeota but are phylogenetically distinct from the thermophilic Crenarchaeota . (asm.org)
- Group I.1a Crenarchaeota dominated at two sites, while group I.3b Crenarchaeota sequences were most abundant at a third site. (conncoll.edu)
- And by comparing the C. symbiosum genome sequence with sequences extracted from environmental samples collected from diverse ocean habitats, they show that planktonic Crenarchaeota share many of the same genetic components. (rxpgnews.com)
- How did the genes identified here compare with planktonic Crenarchaeota gene sequences? (rxpgnews.com)
Diversity4
- Obsidian Pool, in the Mud Volcano area of Yellowstone National Park, is a neutral-pH hot spring which contains an unusually wide diversity of Crenarchaeota. (tolweb.org)
- Archaeal Diversity and the Prevalence of Crenarchaeota in Salt Marsh " by Katelyn A. Nelson, Nicole S. Moin et al. (conncoll.edu)
- Soil pH regulates the abundance and diversity of Group 1.1c Crenarchaeota. (nih.gov)
- Diversity of archaeosine synthesis in crenarchaeota. (semanticscholar.org)
Abundant2
- Marine Crenarchaeota represent an abundant component of oceanic microbiota with potential to significantly influence biogeochemical cycling in marine ecosystems. (uib.no)
- Uncultivated organisms in the subdivision Crenarchaeota are postulated to be the most abundant ammonia -oxidizing organisms in soils and to account for a large proportion (roughly 20 percent) of the microorganisms present in the picoplankton in the world's oceans. (britannica.com)
Temperate1
- High abundance of Crenarchaeota in a temperate acidic forest soil. (nih.gov)
Environments1
- Two types of environments were Crenarchaeota thrive: Left. (tolweb.org)
Phylogenetically1
- The Kingdom Crenarchaeota has been defined phylogenetically, based on comparative molecular sequence analyses, and its members are therefore primarily defined by sequence similarity. (tolweb.org)
Ammonia2
- However, recent metagenomic studies have revealed the existence of unique ammonia monooxygenase α-subunit (amoA) genes derived from uncultivated, nonextremophilic Crenarchaeota. (pnas.org)
- Several lines of evidence suggest that planktonic Crenarchaeota, significant components of the marine ecosystem, assimilate carbon in this way and that they might use ammonia (NH3) as an energy source, since they inhabit ammonia-rich Antarctic waters and are associated with high nitrite concentrations. (rxpgnews.com)
Researchers1
- To search for genetic clues to carbon and energy metabolism in Crenarchaeota, the researchers extracted C. symbiosum DNA from its host sponge and constructed a DNA library for sequencing the symbiont s genome. (rxpgnews.com)
Gene1
- Derived from the gene content, T. tenax is a representative member of the Crenarchaeota. (wur.nl)
Extremophiles1
- The metabolism of most Crenarchaeota other than the cultivated thermophilic extremophiles is not known yet (11, 25, 51). (psu.edu)
Genome1
- One particular feature is the great metabolic versatility, which is not accompanied by a distinct increase of genome size or information density as compared to other Crenarchaeota. (wur.nl)
Extreme1
- The crenarchaeota are able to endure both extreme temperatures and extreme acidity. (reference.com)