Aeromonas: A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs singly, in pairs, or in short chains. Its organisms are found in fresh water and sewage and are pathogenic to humans, frogs, and fish.Aeromonas hydrophila: A species of gram-negative, facultatively anaerobic, rod-shaped bacteria that may be pathogenic for frogs, fish, and mammals, including man. In humans, cellulitis and diarrhea can result from infection with this organism.Aeromonas salmonicida: A species of gram-negative bacteria, in the family Aeromonadaceae. It is strictly parasitic and often pathogenic causing FURUNCULOSIS in SALMONIDS and ulcer disease in GOLDFISH.Gram-Negative Bacterial Infections: Infections caused by bacteria that show up as pink (negative) when treated by the gram-staining method.Aeromonas caviae: A species of gram-negative, facultatively anaerobic bacteria that is found in domestic and wild animals including birds, and fish. In humans it causes GASTROENTERITIS in young children and some adults.Water Microbiology: The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.Furunculosis: A persistent skin infection marked by the presence of furuncles, often chronic and recurrent. In humans, the causative agent is various species of STAPHYLOCOCCUS. In salmonid fish (SALMONIDS), the pathogen is AEROMONAS SALMONICIDA.Fish Diseases: Diseases of freshwater, marine, hatchery or aquarium fish. This term includes diseases of both teleosts (true fish) and elasmobranchs (sharks, rays and skates).Vibrionaceae: A family of gram-negative bacteria whose members predominate in the bacterial flora of PLANKTON; FISHES; and SEAWATER. Some members are important pathogens for humans and animals.Cytotoxins: Substances that are toxic to cells; they may be involved in immunity or may be contained in venoms. These are distinguished from CYTOSTATIC AGENTS in degree of effect. Some of them are used as CYTOTOXIC ANTIBIOTICS. The mechanism of action of many of these are as ALKYLATING AGENTS or MITOSIS MODULATORS.Hemolysin Proteins: Proteins from BACTERIA and FUNGI that are soluble enough to be secreted to target ERYTHROCYTES and insert into the membrane to form beta-barrel pores. Biosynthesis may be regulated by HEMOLYSIN FACTORS.Diarrhea: An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight.DNA, Bacterial: Deoxyribonucleic acid that makes up the genetic material of bacteria.Feces: Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.Fishes: A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.Trout: Various fish of the family SALMONIDAE, usually smaller than salmon. They are mostly restricted to cool clear freshwater. Some are anadromous. They are highly regarded for their handsome colors, rich well-flavored flesh, and gameness as an angling fish. The genera Salvelinus, Salmo, and ONCORHYNCHUS have been introduced virtually throughout the world.Bacterial Proteins: Proteins found in any species of bacterium.Virulence: The degree of pathogenicity within a group or species of microorganisms or viruses as indicated by case fatality rates and/or the ability of the organism to invade the tissues of the host. The pathogenic capacity of an organism is determined by its VIRULENCE FACTORS.Bacterial Infections: Infections by bacteria, general or unspecified.Enterotoxins: Substances that are toxic to the intestinal tract causing vomiting, diarrhea, etc.; most common enterotoxins are produced by bacteria.Salmonidae: A family of anadromous fish comprising SALMON; TROUT; whitefish; and graylings. They are the most important food and game fishes. Their habitat is the northern Atlantic and Pacific, both marine and inland, and the Great Lakes. (Nelson: Fishes of the World, 1976, p97)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.Aquaculture: Cultivation of natural faunal resources of water. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Drainage, Sanitary: A system of artificial or natural drains, generally used for the disposal of liquid wastes.Fasciitis, Necrotizing: A fulminating bacterial infection of the deep layers of the skin and FASCIA. It can be caused by many different organisms, with STREPTOCOCCUS PYOGENES being the most common.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Fasciitis: Inflammation of the fascia. There are three major types: 1, Eosinophilic fasciitis, an inflammatory reaction with eosinophilia, producing hard thickened skin with an orange-peel configuration suggestive of scleroderma and considered by some a variant of scleroderma; 2, Necrotizing fasciitis (FASCIITIS, NECROTIZING), a serious fulminating infection (usually by a beta hemolytic streptococcus) causing extensive necrosis of superficial fascia; 3, Nodular/Pseudosarcomatous /Proliferative fasciitis, characterized by a rapid growth of fibroblasts with mononuclear inflammatory cells and proliferating capillaries in soft tissue, often the forearm; it is not malignant but is sometimes mistaken for fibrosarcoma.Quality Control: A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)Frozen FoodsMicrobial Sensitivity Tests: Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses).Odors: The volatile portions of substances perceptible by the sense of smell. (Grant & Hackh's Chemical Dictionary, 5th ed)Cats: The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)Smell: The ability to detect scents or odors, such as the function of OLFACTORY RECEPTOR NEURONS.Soccer: A game in which a round inflated ball is advanced by kicking or propelling with any part of the body except the hands or arms. The object of the game is to place the ball in opposite goals.PubMed: A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.BooksPublishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.MEDLINE: The premier bibliographic database of the NATIONAL LIBRARY OF MEDICINE. MEDLINE® (MEDLARS Online) is the primary subset of PUBMED and can be searched on NLM's Web site in PubMed or the NLM Gateway. MEDLINE references are indexed with MEDICAL SUBJECT HEADINGS (MeSH).Carbon Cycle: The cycle by which the element carbon is exchanged between organic matter and the earth's physical environment.Chlorobi: A phylum of anoxygenic, phototrophic bacteria including the family Chlorobiaceae. They occur in aquatic sediments, sulfur springs, and hot springs and utilize reduced sulfur compounds instead of oxygen.Chlorobium: A genus of phototrophic, obligately anaerobic bacteria in the family Chlorobiaceae. They are found in hydrogen sulfide-containing mud and water environments.Carbon: A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel.Pentose Phosphate Pathway: An oxidative decarboxylation process that converts GLUCOSE-6-PHOSPHATE to D-ribose-5-phosphate via 6-phosphogluconate. The pentose product is used in the biosynthesis of NUCLEIC ACIDS. The generated energy is stored in the form of NADPH. This pathway is prominent in tissues which are active in the synthesis of FATTY ACIDS and STEROIDS.Rhodospirillales: An order of photosynthetic bacteria representing a physiological community of predominantly aquatic bacteria.Biohazard Release: Uncontrolled release of biological material from its containment. This either threatens to, or does, cause exposure to a biological hazard. Such an incident may occur accidentally or deliberately.Containment of Biohazards: Provision of physical and biological barriers to the dissemination of potentially hazardous biologically active agents (bacteria, viruses, recombinant DNA, etc.). Physical containment involves the use of special equipment, facilities, and procedures to prevent the escape of the agent. Biological containment includes use of immune personnel and the selection of agents and hosts that will minimize the risk should the agent escape the containment facility.Laboratory Infection: Accidentally acquired infection in laboratory workers.Gentian Violet: A dye that is a mixture of violet rosanilinis with antibacterial, antifungal, and anthelmintic properties.Plesiomonas: A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in fish and other aquatic animals and in a variety of mammals, including man. Its organisms probably do not belong to the normal intestinal flora of man and can cause diarrhea.Shigella sonnei: A lactose-fermenting bacterium causing dysentery.

Small subunit rRNA gene sequences of Aeromonas salmonicida subsp. smithia and Haemophilus piscium reveal pronounced similarities with A. salmonicida subsp. salmonicida. (1/769)

The small subunit ribosomal RNA (SSU rRNA) encoding genes from reference strains of Aeromonas salmonicida subsp. smithia and Haemophilus piscium were amplified by polymerase chain reaction and cloned into Escherichia coli cells. Almost the entire SSU rRNA gene sequence (1505 nucleotides) from both organisms was determined. These DNA sequences were compared with those previously described from A. salmonicida subsp. salmonicida, subsp. achromogenes and subsp. masoucida. This genetic analysis revealed that A. salmonicida subsp. smithia and H. piscium showed 99.4 and 99.6% SSU rRNA gene sequence identity, respectively, with A. salmonicida subsp. salmonicida.  (+info)

Purification and characterization of cold-active L-glutamate dehydrogenase independent of NAD(P) and oxygen. (2/769)

L-Glutamate dehydrogenase (GLDH) independent of NAD(P) and oxygen was first obtained from the psychrotrophic bacterium Aeromonas sp. L101, originally isolated from the organs of salmon (Oncorhynchus keta). GLDH was purified by a series of chromatography steps on DEAE-Sepharose, Superdex 200pg, Q-Sepharose, CM-Sepharose, and Phenyl-Sepharose. The purified protein was determined to have a molecular mass of 110 kDa and a pI of 5.7. Maximum activity was obtained at 55 degrees C and pH 8.5. The activity of GLDH at 4 and 20 degrees C was 38 and 50%, respectively, of that at 50 degrees C. GLDH was coupled to cytochrome c and several redox dyes including 1-methoxy-5-methylphenazinium methylsulfate (1-Methoxy PMS), 2, 6-dichlorophenylindophenol (DCIP), 9-dimethylaminobenzo[alpha]phenoxazin-7-ium chloride (meldola's blue), 3,3'-[3,3'-dimethoxy-(1,1'-biphenyl)-4, 4'-diyl]-bis[2-(4-nitrophenyl)-5-phenyl-2H tetrazolium chloride] (nitroblue tetrazolium; NBT), and 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H tetrazolium (INT). The presence of NAD(P) and oxygen gave no oxidation activity to GLDH. Spectroscopic profile and ICP data indicated a b-type cytochrome containing iron.  (+info)

Fish macrophages express a cyclo-oxygenase-2 homologue after activation. (3/769)

In mammals, the increased generation of prostaglandins (PG) during the onset of inflammatory responses and activation of immune cell types has been attributed to the induction of a novel cyclo-oxygenase (COX) isoform, termed COX-2, which is distinct from the well-characterized constitutive activity (COX-1). Goldfish (Carassius auratus) macrophages exposed to bacterial lipopolysaccharide and leucocyte-derived macrophage-activating factor(s) showed a significant increase in the generation of the major COX product, PGE2, within the first 6 h of stimulation. The selective COX-2 inhibitor, NS398, inhibited this elevated generation of PGE, whereas the basal level of this product synthesized by unstimulated macrophages was unaffected by such exposure. PGE generation by goldfish macrophages was similarly inhibited by the glucocorticoid, dexamethasone, and an inhibitor of protein synthesis, cycloheximide, suggesting that this stimulation may be due to an inducible enzyme equivalent to mammalian COX-2. The complete coding sequence of rainbow trout (Oncorhynchus mykiss) COX-2 was obtained by PCR. The gene contains a 61 bp 5'-untranslated region (UTR), a 1821 bp open reading frame and a 771 bp 3'UTR containing multiple copies of an mRNA instability motif (ATTTA). The predicted translation product had high homology to known mammalian and chicken COX-2 (83-84%) and COX-1 (77%) sequences. Reverse-transcriptase PCR with cDNA from control and bacterially challenged fish revealed that trout COX-2 expression was not constitutive but could be induced. Overall, these studies show for the first time that the inducible isoform of COX has a long evolutionary history, probably dating back to the evolution of fish over 500 million years ago.  (+info)

Intramolecular chaperone and inhibitor activities of a propeptide from a bacterial zinc aminopeptidase. (4/769)

An aminopeptidase from Aeromonas caviae T-64 was translated as a preproprotein consisting of three domains; a signal peptide (19 amino acid residues), an N-terminal propeptide (101 residues) and a mature region (273 residues). We demonstrated that a proteinase, which was isolated from the culture filtrate of A. caviae T-64, activated the recombinant pro-aminopeptidase by removal of the majority of the propeptide. Using L-Leu-p-nitroanilide as a substrate, the processed aminopeptidase showed a large increase in kcat when compared with the unprocessed enzyme, whereas the Km value remained relatively unchanged. The similar Km values for the pro-aminopeptidase and the mature aminopeptidase indicated that the N-terminal propeptide of the pro-aminopeptidase did not influence the formation of the enzyme-substrate complex, suggesting the absence of marked conformational changes in the active domain. In contrast, the marked difference in kcat suggests a significant decrease in the energy of one or more of the transition states of the enzyme-substrate reaction coordinate. Moreover, we showed that the activity of the urea-denatured pro-aminopeptidase could be recovered by dialysis, whereas the activity of the urea-denatured mature aminopeptidase, which lacked the propeptide, could not. Further to this, the propeptide-deleted aminopeptidase formed an inclusion body in the cytoplasmic space in Escherichia coli and was not secreted at all. These results suggested that the propeptide of the pro-aminopeptidase acted as an intramolecular chaperone that was involved with the correct folding of the enzyme in vitro and was required for extracellular secretion in E. coli.  (+info)

Structure elucidation of Sch 20562, a glucosidic cyclic dehydropeptide lactone--the major component of W-10 antifungal antibiotic. (5/769)

A novel bacterium designated as Aeromonas sp. W-10 produces the antibiotic W-10 complex which comprises of two major and several minor components. The two major components from this complex, Sch 20562 (1) and Sch 20561 (1a), are of biological interest in view of their potent antifungal activity. The chemical degradation studies utilized for the assignment of structure 1 for Sch 20562 are described here. Some of the noteworthy diversity of structural features in this glucosidic cyclic dehydrononapeptide lactone 1 are: an N-terminal (D)-beta-hydroxymyristyl unit, three D-amino acid units, two (E)-alpha-aminocrotonyl units, and an O-alpha-D-glucosyl-N-methyl-L-allo-threonine unit. The structure determination of 1 utilized the selective cleavage of the dehydropeptide units by ozonolysis to form fragments that were sequenced by mass spectrometry. The stereochemistry of the amino acid units were assigned by isolation of the free amino acids from the hydrolysates of the fragments. The stereochemistry of the alpha-aminocrotonyl units and the glucosidic linkage were assigned by nmr spectroscopy and molecular rotation data.  (+info)

Structure elucidation of Sch 20561, a cyclic dehydropeptide lactone--a major component of W-10 antifungal antibiotic. (6/769)

Antibiotic W-10 is a fermentation complex produced by the bacterium Aeromonas sp. W-10. The cyclic dehydropeptide lactones Sch 20562 (1) and Sch 20561 (2) are the major components of this fermentation complex and are of biological interest in view of their unique structural features and potent antifungal activity. The chemical degradation studies that were utilized in the assignment of structure 2 for Sch 20561 are described here. The structure determination of 2 made use of the ozonolytic cleavage of the dehydropeptide units to form fragments that were sequenced by mass spectrometry. The cyclic dehydropeptide lactone Sch 20561 (2) was found to be the aglycone of Sch 20562 (1) and these two natural products were correlated by a chemical transformation involving the deglucosidation of 1 to form 2.  (+info)

Cloning, sequencing, and role in virulence of two phospholipases (A1 and C) from mesophilic Aeromonas sp. serogroup O:34. (7/769)

Two different representative recombinant clones encoding Aeromonas hydrophila lipases were found upon screening on tributyrin (phospholipase A1) and egg yolk agar (lecithinase-phospholipase C) plates of a cosmid-based genomic library of Aeromonas hydrophila AH-3 (serogroup O34) introduced into Escherichia coli DH5alpha. Subcloning, nucleotide sequencing, and in vitro-coupled transcription-translation experiments showed that the phospholipase A1 (pla) and C (plc) genes code for an 83-kDa putative lipoprotein and a 65-kDa protein, respectively. Defined insertion mutants of A. hydrophila AH-3 defective in either pla or plc genes were defective in phospholipase A1 and C activities, respectively. Lecithinase (phospholipase C) was shown to be cytotoxic but nonhemolytic or poorly hemolytic. A. hydrophila AH-3 plc mutants showed a more than 10-fold increase in their 50% lethal dose on fish and mice, and complementation of the plc single gene on these mutants abolished this effect, suggesting that Plc protein is a virulence factor in the mesophilic Aeromonas sp. serogroup O:34 infection process.  (+info)

Efficacy of orally administered oxolinic acid and Vetoquinol, an oxolinic acid ester, for the treatment of furunculosis in Atlantic salmon Salmo salar held in seawater. (8/769)

This study was performed to determine the efficacy of orally administered oxolinic acid and Vetoquinol, an oxolinic acid ester, in the treatment of experimental induced furunculosis in Atlantic salmon Salmo salar held in seawater. Two strains of the causative bacterium Aeromonas salmonicida subsp. salmonicida, 1 sensitive (VI-88/09/03175) and 1 resistant (3475/90) to oxolinic acid, were used. In 2 trials, cohabitational challenges were performed by introducing 8 fish challenged in advance by an intraperitoneal injection of 2.2 x 10(4) colony forming units of strain 3475/90 (Trial 1) or strain VI-88/09/03175 (Trial 2) to 10 aquaria each containing 40 healthy fish. The treatment groups in both trials consisted of 4 groups receiving either oxolinic acid (2 groups) or Vetoquinol (2 groups) and 1 control group. An unchallenged, unmedicated group was used to determine the natural mortality in the population. The recommended therapeutic dose of 25 mg oxolinic acid kg-1 fish at Days 1, 2, 4, 6, 8 and 10 following initiation of treatment was used. Oral medication initiated at Day 10 (Trial 1) or Day 11 (Trial 2) following challenge significantly (p < 0.05) lowered the specific mortality in all drug-treated groups compared to the untreated control groups. Mortality in Vetoquinol-treated groups was significantly (p < 0.05) lower than in oxolinic acid-treated groups in Trial 1 whereas no significant (p < 0.05) difference in survival rate was found between the medicated groups in Trial 2.  (+info)

Nile Tilapia (Oreochromis niloticus) is a very popular aquaculture species in the Philippines at present and considered as an "aquatic chicken" offering economical and social benefits mainly for rural communities. It also play vital role in terms of worldwide employment, however there were reported cases of high mortality rates in different species of Tilapia cause by Aeromonas species (Badillo, 2010). One of the most common bacteria that infect the wild and cultured Tilapia is Aeromonas sobria. Aeromonas sobria is water borne pathogen that are common in almost all aquatic environments including fresh, brackish and marine water. They cause fin rot or skin rot disease and may lead to heavy mortality in cultured tilapia (El-Sayed, 2006). Aeromonas sobria veronii also causes a similar disease in fish including Motile Aeromonas Septicemia in Tilapia (Janda and Abbott, 2010). Bacterial infections, caused by motile members of the genus Aeromonas are among the most common and troublesome diseases of ...
TY - JOUR. T1 - Carboxy terminal region of haemolysin of Aeromonas sobria triggers dimerization. AU - Nomura, Tomohiko. AU - Hamashima, Hajime. AU - Okamoto, Keinosuke. PY - 2000/1. Y1 - 2000/1. N2 - Haemolysin of Aeromonas sobria is released into the culture supernatant in the form of prohaemolysin. Removal of a 42 amino acid peptide at the carboxy-terminal end converts prohaemolysin into mature haemolysin. As the role of the peptide removed from the mature haemolysin has not been studied, we mutated the haemolysin genes to delete several amino acid residues from the carboxy terminus, expressed the mutant genes in A. sobria and analysed the haemolysins produced. Deletion of more than three amino acid residues significantly reduced the efficiency of secretion of haemolysin into the culture supernatant. Mutant haemolysins with deletion of 10 amino acids were easily degraded in cells. Furthermore, cross-linking experiments indicated that the haemolysins dimerize in cells, and thus dimerized ...
Antimicrobial resistant bacteria are emerging biological contaminants of the environment. In aquatic ecosystems, they originate mainly from hospitals, livestock manure and private households sewage water, which could contain antimicrobial agents and resistant microorganisms. Aeromonas spp. occur ubiquitously in aquatic environments and they cause disease in fish. Motile aeromonads are also associated with human gastrointestinal and wound infections and fish can act as a transmission route of antimicrobial resistance (AMR) aeromonads to humans. The environmental ubiquity, the natural susceptibility to antimicrobials and the zoonotic potential of Aeromonas spp. make them optimal candidates for studying the AMR in aquatic ecosystems. The AMR patterns of 95 motile aeromonads isolated from freshwater fish during 2013 and 2016 were analyzed. All samples from fish came from farms and natural water bodies located in northern Italy, which is an area characterized by high anthropic impact on the environment. The
Aeromonas sobria is a mesophilic motile aeromonad currently depicted as an opportunistic pathogen, despite increasing evidence of mutualistic interactions in salmonid fish. However, the determinants of its host-microbe associations, either mutualistic or pathogenic, remain less understood than for other aeromonad species. On one side, there is an over-representation of pathogenic interactions in the A. sobria literature, of which only three articles to date report mutualistic interactions; on the other side, genomic characterization of this species is still fairly incomplete as only two draft genomes were published prior to the present work. Consequently, no study specifically investigated the biodiversity of A. sobria. In fact, the investigation of A. sobria as a species complex may have been clouded by: (i) confusion with A. veronii biovar sobria because of their similar biochemical profiles, and (ii) the intrinsic low resolution of previous studies based on 16S rRNA gene sequences and multilocus
0068] Bacterial pathogen: A bacteria that causes disease (pathogenic bacteria). Examples of pathogenic bacteria include without limitation any one or more of (or any combination of) Acinetobacter baumanii, Actinobacillus sp., Actinomycetes, Actinomyces sp. (such as Actinomyces israelii and Actinomyces naeslundii), Aeromonas sp. (such as Aeromonas hydrophila, Aeromonas veronii biovar sobria (Aeromonas sobria), and Aeromonas caviae), Anaplasma phagocytophilum, Anaplasma marginale, Alcaligenes xylosoxidans, Acinetobacter baumanii, Actinobacillus actinomycetemcomitans, Bacillus sp. (such as Bacillus anthracis, Bacillus cereus, Bacillus subtilis, Bacillus thuringiensis, and Bacillus stearothermophilus), Bacteroides sp. (such as Bacteroides fragilis), Bartonella sp. (such as Bartonella bacilliformis and Bartonella henselae, Bifidobacterium sp., Bordetella sp. (such as Bordetella pertussis, Bordetella parapertussis, and Bordetella bronchiseptica), Borrelia sp. (such as Borrelia recurrentis, and ...
Chemical analyses, mass spectrometry, and NMR spectroscopy were applied to study the structure of the lipopolysaccharide (LPS) isolated from Aeromonas veronii strain Bs19, serotype O16. ESI-MS revealed that the most abundant LPS glycoforms have tetra-acylated or hexa-acylated lipid A species, consisting of a bisphosphorylated GlcN disaccharide with an AraN residue as a non-stoichiometric substituent, and a core oligosaccharide composed of Hep5Hex3HexN1Kdo1P1. Sugar and methylation analysis together with 1D and 2D 1H and 13C NMR spectroscopy were the main methods used, and revealed that the O-specific polysaccharide (OPS) of A. veronii Bs19 was built up of tetrasaccharide repeating units with the structure: →4)-α-d-Quip3NAc-(1→3)-α-l-Rhap-(1→4)-β-d-Galp-(1→3)-α-d-GalpNAc-(1→. This composition was confirmed by mass spectrometry. The charge-deconvoluted ESI FT-ICR MS recorded for the LPS preparations identified mass peaks of SR- and R-form LPS species, that differed by Δm = 698.27 u, a
Travelers diarrhea is the most common health problem of international travelers. We determined the prevalence of Aeromonas spp. associated with travelers diarrhea and analyzed the geographic distribution, clinical features, and antimicrobial susceptibility. Aeromonas spp. were isolated as a cause of travelers diarrhea in 18 (2%) of 863 patients. A. veronii biotype sobria was isolated in nine patients, A. caviae in seven patients, and A. jandai and A. hydrophila in one patient each. Aeromonas spp. were isolated with a similar prevalence in Africa, Latin America, and Asia. Watery and persistent diarrhea, fever, and abdominal cramps were common complaints. All strains were resistant to ampicillin; showed variable resistance to chloramphenicol, tetracycline, and cotrimoxazole; and were susceptible to cefotaxime, ciprofloxacin, and nalidixic acid. The persistence of symptoms made antimicrobial treatment necessary.
Variation in acid production from carbohydrate metabolism has been identified in ,italic,Aeromonas,/italic, as a potential indicator for new subspecies. Therefore, pure cultures of non-lactose fermenting ,italic,Aeromonas caviae,/italic,, a cause of waterborne infections in humans and other vertebrates, were studied after noting a mixture of acid producing and non-acid producing colonies after four days of incubation on MacConkey agar at ambient temperature. Unusual arabinose negative strains of ,italic,A. hydrophila,/italic, (usually arabinose positive) were added to the project to further study the correlation between carbohydrate fermentation and taxonomy. These metabolic variants of ,italic,A. caviae,/italic, and ,italic,A. hydrophila,/italic, were studied for phenotypic differences via carbohydrate utilization assays as well as genotypic differences via FAFLP. The results suggest that the ,italic,A. caviae,/italic, isolates MB3 and MB7 should be considered novel subspecies, while the ...
Members of the genus Aeromonas collectively occupy diverse niches ranging from free-living states in the environment to close associations with animals, sometimes causing disease in their hosts (1, 2). In the environment, Aeromonas spp. are most commonly associated with aquatic habitats, and as such, water sources are of particular interest, since they represent potential contamination routes that may impact human and animal health and disease. Some Aeromonas spp. are also implicated in opportunistic infections in humans; the majority of these have been identified as A. hydrophila, A. veronii, and A. caviae (3), although as classification of the species within this genus continues to improve, other aeromonad species, such as A. dhakensis, have also been suggested to be important infectious agents (4-6). To date, there are 31 established or proposed species of Aeromonas (7).. Aeromonas lusitana sp. nov. strain DSM 24905T (=CECT 7828T, =11/6T, =MDC 2473) was isolated from a hot spring water sample ...
We have investigated the usefulness of ribotyping for the differentiation of aeromonads isolated from five patients with gastroenteritis and from the source water, treatment plant, and distribution system of a small public water supply. Aeromonas hydrophila and Aeromonas caviae were isolated from fecal specimens preserved in Cary-Blair transport medium by using blood ampicillin agar or alkaline peptone water (pH 8.4) subcultured to blood ampicillin agar plates. A. hydrophila, Aeromonas sobria, and A. caviae were isolated from duplicate 100-ml water samples by the membrane filter technique by using ampicillin dextrin agar for quantitative determination of growth and alkaline peptone water enrichment for detection of the presence or absence of aeromonads below the detection limit of the membrane filter method. In addition, free chlorine residuals and pH values were determined for all water samples and heterotrophic plate counts and total and fecal coliform analyses were performed on them. ...
We have investigated the quorum sensing control in Aeromonas veronii MTCC 3249, originally isolated as A. culicicola from the midgut of Culex quinquefasciatus. Based on biosensor assays, the bacterium showed constant production of multiple acyl-homoserine lactones (AHLs) with increasing cell-density. The luxRI gene homologs, acuR (A. culicicola transcriptional Regulator) and acuI (A. culicicola autoInducer) were successfully amplified by inverse-PCR. Sequence analysis indicated acuRI were divergent from all known quorum sensing gene homologs in Aeromonas. Two localized regions in the C-terminal autoinducer binding domain of acuR showed indels suggesting variations in autoinducer specificity. Further, only a single copy of the quorum sensing genes was detected, suggesting a tight regulation of mechanisms under its control. Chromatography and further chemical analysis identified two AHLs in the culture supernatant: 6-carboxy-HHL (homoadipyl homoserine lactone), a novel AHL, and N-tetradecanoylhomoserine
Aeromonas is a genus of Gram-negative, facultative anaerobic, rod-shaped bacteria that morphologically resemble members of the family Enterobacteriaceae. Most of the 14 described species have been associated with human diseases. The most important pathogens are A. hydrophila, A. caviae, and A. veronii biovar sobria. The organisms are ubiquitous in fresh and brackish water. They group with the gamma subclass of the Proteobacteria. Two major diseases associated with Aeromonas are gastroenteritis and wound infections, with or without bacteremia. Gastroenteritis typically occurs after the ingestion of contaminated water or food, whereas wound infections result from exposure to contaminated water. In its most severe form, Aeromonas spp. can cause necrotizing fasciitis, which is life-threatening, usually requiring treatment with antibiotics and even amputation. Although some potential virulence factors (e.g. endotoxins, hemolysins, enterotoxins, adherence factors) have been identified, their precise ...
Surmmary Clinical isolates of Aeromonas were grown at eight different temperatures from 10°C to 40°C. Whole cell lysates were examined by SDS-PAGE and major temperature-dependent changes to both protein and lipopolysaccharide (LPS) profiles were identified. Cells grown at the higher temperatures (37°C and 40°C) produced abundantly a protein of c. 60 kDa which was not detected at the lower temperatures. Temperature-dependent expressions of other proteins were also noted but these were more variable among the isolates. An effect of temperature on expression of lipopolysaccharides was also noted in that some strains produced significantly less O-polysaccharides at the higher temperatures. After fractionation of cells, major differences in the expression of cell envelope and outer-membrane proteins between cells grown at low and high temperatures were noted although no unifying patterns could be discerned. Such growth temperature-induced changes in the cell envelope constituents have not been described
Several approaches have been developed to estimate both the relative and absolute rates of speciation and extinction within clades based on molecular phylogenetic reconstructions of evolutionary relationships, according to an underlying model of diversification. However, the macroevolutionary models established for eukaryotes have scarcely been used with prokaryotes. We have investigated the rate and pattern of cladogenesis in the genus Aeromonas (γ-Proteobacteria, Proteobacteria, Bacteria) using the sequences of five housekeeping genes and an uncorrelated relaxed-clock approach. To our knowledge, until now this analysis has never been applied to all the species described in a bacterial genus and thus opens up the possibility of establishing models of speciation from sequence data commonly used in phylogenetic studies of prokaryotes. Our results suggest that the genus Aeromonas began to diverge between 248 and 266 million years ago, exhibiting a constant divergence rate through the Phanerozoic, ...
p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
Results: Twenty-four cases were encountered at our institution (20 cases with A. hydrophila, 2 with A. caviae, and 2 with A. veronii biovar sobria bacteremia) during the 16-years study period. The median age of patients was 69 years (range: 17-92) and the majority were men (17/24; 70.8%). Sixteen patients (66.8%) had gastrointestinal manifestation such as diarrhea, vomit, and abdominal pain, and 15 (63%) had jaundice. Bacteremia occurred most often in patients with disease of the hepatobiliary or pancreatic system (45.8%; including 5 pancreatic cancer, 2 cholangiocarcinoma, 2 gallbladder tumor, and 2 liver cirrhosis) and gastrointestinal cancer (16.7%). According to our literature review including our 24 cases, the most frequent pathogen isolated was A. hydrophila (44/73; 60.3%). There was 25 patients (34.2%) with polymicrobial Aeromonas bacteremia and community-acquired blood stream infections due to Aeromonasspecies occurred in 51.6% patients. The overall 30-day mortality was 28.8%. ...
Allium schubertii - Commonly called tumbleweed onion, is a bulbous perennial that is ornamentally grown for its impressive display of rose-purple flowers that bloom in giant, spherical umbels in late spring. It typically grows to a modest 12-24
The general objective of this PhD Thesis was to determine the prevalence of Aeromonas spp. found by sequencing the rpoD gene among the 1365 identified strains. Two types of tertiary treated reclaimed water, one after a lagooning and the other after UV and chlorine (UV+ Cl) treatment were, together with other environmental waters, the dominating origin of the isolates (n=543), followed by 416 strains from human clinical samples and 203 that came from fish (carp and trouts), vegetable irrigated with the reclaimed water and shellfish. The most relevant findings were that the lagooning system only reduced in an 82% the concentration of Aeromonas vs the 100% elimination after UV+Cl. However, re-growth was observed in the stored water use for irrigation. The same strain (ERIC genotrype) of A. caviae was found in the water used for irrigation and in the irrigated lettuce, as occurred for a strain of A. saranelli found in the parsley and in the tomatoes, indicating the origin for the strains in the ...
Many virulence factors have been described for opportunistic pathogens within the genus Aeromonas. Polymerase Chain Reactions (PCRs) are commonly used in population studies of aeromonads to detect virulence-associated genes in order to better understand the epidemiology and emergence of Aeromonas fr …
The gut microbiota consists of a diverse community of microbes, living within the digestive tracts of humans, animals, and insects. While some microbes can cause infectious diseases, other microbes are vital for the development and physiology of the host. Although it is known that microbes affect host health and development, the colonization dynamics of these microbes are still unknown. In the Guillemin lab, we study these host-microbe interactions using zebrafish as a model organism to understand how microbes colonize the host gut. Aeromonas is a normal bacterial resident of the zebrafish gut that we recently discovered produces an uncharacterized double cache domain containing protein ZOR0001_03237 (3237). This protein, 3237, affects the colonization of Aeromonas in zebrafish by decreasing the rate of colonization. To further explore how 3237 could be involved in colonization, we investigated the predicted structure for clues. Based on sequence, 3237 is hypothesized to have a periplasmic ...
[200 Pages Report] Check for Discount on Aeromonads Diagnostic Testing Market: US, Europe (France, Germany, Italy, Spain, UK), Japan--Supplier Shares, Sales Forecasts, Innovative Technologies, Competitive Strategies, Emerging Opportunities report by Venture Planning Group. The report presents a detailed analysis of the Aeromonads diagnostics...
Defined deletion mutants demonstrate that the major secreted toxins are not essential for the virulence of Aeromonas salmonicida. - R Vipond, I R Bricknell, E Durant, T J Bowden, A E Ellis, M Smith, S MacIntyre
四川某兔场家兔爆发以咳嗽、打喷嚏和流鼻液等症状的疾病。为调查其病因,本试验分别无菌采集5只病兔和临床健康兔肺脏分离细菌,对分离出的4株优势菌进行16S rDNA PCR扩增测序分析鉴定,并对分离的细菌进行药敏试验和小鼠致病性试验。结果从发病家兔肺脏分离到4株维罗纳气单胞菌,而从临床外表健康家兔肺脏未分离到该菌;本试验分离的4株维罗纳气单胞菌均对小鼠有致病性,能引起小鼠发病并部分死亡;分离菌对大多数氟喹诺酮类、β-内酰胺类、四环素类药物敏感,对大部分氨基糖苷类药物耐药。本试验首次从家兔肺脏中分离到致病性维罗纳气单胞菌,并筛选出敏感药物,为家兔呼吸道疾病的防控提供了参考。;In this study, The sick rabbits, showing clinical symptoms of coughing, sneezing and snivelling, outbroke in a rabbit farm in Sichuan Province. In order to investigate the pathogens caused
Takahashi Eizo , Fujii Yoshio , Kobayashi Hidetomo , YAMANAKA Hiroyasu , BALAKRISH NAIR Gopinath , TAKEDA Yoshifumi , ARIMOTO Sakae , NEGISHI Tomoe , OKAMOTO Keinosuke Microbiology and immunology 54(10), 596-605, 2010-10-20 医中誌Web 参考文献30件 ...
The absorption spectrum of cobalt(II)-substituted Aeromonas aminopeptidase is markedly perturbed by the presence of equimolar concentrations of D-amino acid hydroxamates and acyl hydroxamates that have previously been shown to be powerful inhibitors of this enzyme (Wilkes, S. H., and Prescott, J. M. (1983) J. Biol. Chem. 258, 13517-13521). D-Valine hydroxamate produces the most distinctive perturbation, splitting the characteristic 527 nm absorption peak of the cobalt enzyme to form peaks at 564, 520, and 487 nm with molar extinction values of 126, 98, and 67 M-1 cm-1, respectively. A qualitatively similar perturbation, albeit with lower extinction values, results from the addition of D-leucine hydroxamate, whereas D-alanine hydroxamate perturbs the spectrum, but does not evoke the peak at 564 nm. In contrast, hydroxamates of L-valine and L-leucine in concentrations equi-molar to that of the enzyme produce only faint indications of change in the spectrum, but the hydroxamates of several other L-amino
Odeyemi, OA (2013) Virulence factors and biofilm formation in Aeromonas and Vibrio species from coastal sources. Ecology Environment and Conservation, 19 (4). pp. 1271-1278. ISSN 0971-765X ...
Dehydrated culture media from Merck for Vibrio and Aeromonas: A granulated format offering convenience, safety and maximum performance
Biohazard level, growth media and temperature, gram stain, industrial applications and more information for Aeromonas ichthiosmia.
Thermostable enzyme from Vibrio proteolyticus (formerly Aeromonas proteolytica). Specificity related to, but distinct from, those of thermolysin and bacillolysin [1]. A zinc metallopeptidase in family M4 (thermolysin family). Formerly included in EC 3.4.24.4 ...
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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.
Rainbow Agar Shigella/Aeromonas was developed to directly isolate these important causative agents of gastroenteritis. The medium is inhibitory to gram-postive bacteria and most non-enteric gram-negative bacteria, but is not toxic to the target species. Most other enteric species including Escherichia coli are significantly inhibited, and colonies that grow are blue. Strains of all four Shigella species (sonnei, flexneri, boydii and dysenteriae) as well as some Aeromonas species (hydrophila, jandaei and tructi) grow as large or medium-sized orange-red colonies.. (Microbial ID Products Not for Human In Vitro Diagnostic Use). View our bibliography of published articles.. ...
Cleanliness is one the biggest draws of living with cats. So, if you start to detect a bad odor from your cat, you need to take notice. In most cases, foul feline smells are a sign that something is seriously wrong. ...
Drets: ADVERTIMENT. Laccés als continguts daquesta tesi doctoral i la seva utilització ha de respectar els drets de la persona autora. Pot ser utilitzada per a consulta o estudi personal, així com en activitats o materials dinvestigació i docència en els termes establerts a lart. 32 del Text Refós de la Llei de Propietat Intel·lectual (RDL 1/1996). Per altres utilitzacions es requereix lautorització prèvia i expressa de la persona autora. En qualsevol cas, en la utilització dels seus continguts caldrà indicar de forma clara el nom i cognoms de la persona autora i el títol de la tesi doctoral. No sautoritza la seva reproducció o altres formes dexplotació efectuades amb finalitats de lucre ni la seva comunicació pública des dun lloc aliè al servei TDX. Tampoc sautoritza la presentació del seu contingut en una finestra o marc aliè a TDX (framing). Aquesta reserva de drets afecta tant als continguts de la tesi com als seus resums i índexs. ...
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Aeromonas hydrophila. Coloured transmission electron micrograph of thin-sectioned cells of Aeromonas hydrophila bacteria. It is a Gram- negative, rod-shaped bacillus. Aeromonas hydrophila is associated with septicaemia, pneumonia and gastroenteritis in humans. In particular it causes opportunistic infections in patients with lowered immunity, such as in cancer and liver disease. Aeromonas hydrophila has been isolated from urine, sputum, faeces and bile. It is resistant to many types of antibiotic including penicillin, but can be controlled with tetracyclins and gentamicin. Magnification: x28,800 at 6x4.5cm size. - Stock Image B220/0809
Aeromonas hydrophila is a gram-negative bacteria that causes motile Aeromonas septicemia (MAS) in many fish species. Typically, A. hydrophila is considered an opportunistic pathogen; however, an emergent strain which is especially deadly to commercially farmed catfish has become a major concern for the catfish industry since 2009. Catfish production is the top aquaculture industry in the United States, and the second largest producer is the state of Alabama. The emergent strain of A. hydrophila affects larger fish, which means that the fish are lost at market size. This results in enormous financial losses for farmers. The strain is especially prevalent in East Mississippi and West Alabama, which are two of the largest areas for catfish production ...
Aeromonas salmonicida subsp. salmonicida ATCC ® 33658™ Designation: NCMB 1102 TypeStrain=True Application: Quality control strain Susceptibility disc testing Testing
Abstract: In vitro susceptibilities of 30 Aeromonas salmonicida strains isolated from rainbow trout (Oncorhynchus mykiss) were determined against to 23 antimicrobials by using disc diffusion method. According to antimicrobial susceptibility tests results, A. salmonicida strains were found susceptible to all antibiotics tested except for the ampicilin and vancomycine. The major fatty acids, used as indicators for identification of the bacteria, were found as 14:0 3OH/16:1 ISO I, 16:1 w7c/15 ISO 2OH, 16:0 and 18:1 w7c, respectively. ...
Forty strains of Aeromonas hydrophila and Aeromonas veronii recovered from invasive and non-invasive infections were tested for their susceptibility to complement-mediated lysis by 65% pooled human serum (PHS). Based upon the results of this assay, two major populations could be defined. The first group (n = 20) consisted of serogroup 0:11 strains, all of which possessed a paracrystalline surface layer (S layer); all of these strains were refractory to the bactericidal activity of 65% PHS with the exception of A. hydrophila strain AH-121, which was composed of mixed subpopulations of serum-susceptible and serum-resistant clones. A second collection of isolates (n = 20), all of which were S-layer-negative, contained a subgroup of strains (n = 7) that were highly susceptible to complement-mediated lysis, showing a greater than 100-fold reduction of viable progeny within 30 min of exposure to 65% PHS. Serum-resistant strains from both groups could not be lysed by exposure of bacterial cells to polyclonal
Hirudotherapy has been complicated by infections caused by Aeromonas spp., which are considered endosymbionts of the leech. Leeches were treated by feeding them artificially with 100μg/ml ciprofloxacin using a 0.05 Mol arginine solution as a phagostimulant. Aeromonads were identified using the API 20NE system, and species determined by gyrB sequencing of two representative isolates. Aeromonas spp. were detected in 57 out of 80 control leeches (71.3%), but in none of the 56 leeches treated with ciprofloxacin. Treated leeches survived for up to four months. Tested weekly, leeches took human blood for at least 4 weeks after treatment and were all negative for Aeromonas spp. All water samples in which leeches were kept before treatment were contaminated with Aeromonas spp. but in none of the NaCl/arginine solutions that were used to feed antibiotic treated leeches. Two species were identified: Aeromonas veronii and Aeromonas media. Other environmental bacteria and some filamentous fungi were ...
Aeromonas hydrophila ATCC ® 7966D-5™ Designation: Genomic DNA from Aeromonas hydrophila TypeStrain=True Application: Water testing
Abstract We report the clinical findings, epidemiology, and risk factors for moderate-to-severe diarrhea (MSD) associated with Aeromonas species in children 0-59 months of age, from the Global Enteric Multicenter Study, conducted at three sites in south Asia and four sites in sub-Saharan Africa. Children with MSD were enrolled along with controls matched for age, gender, and neighborhood. Pooled, age-stratified conditional logistic regression models were applied to evaluate the association of Aeromonas infection controlling for coinfecting pathogens and sociodemographic variables. A pooled, age-stratified, multivariate logistic regression analysis was done to identify risk factors associated with Aeromonas positivity in MSD cases. A total of 12,110 cases and 17,291 matched controls were enrolled over a period of 48 months. Aeromonas was identified as a significant pathogen in 736 cases of MSD in Pakistan and Bangladesh (22.2%). Aeromonas remained a significant pathogen even after adjustment for the
Ultrastructural studies of Aeromonas hydrophila strain AH26 revealed two distinctive pilus types: "straight" pili appear as brittle, rod-like filaments, whereas "flexible" pili are supple and curvilinear. Straight pili are produced constitutively under all tested conditions of growth. In contrast, the expression of flexible pili is regulated by physical and chemical variables, being produced at 22 vs. 37 degrees C, in a liquid vs. a solid medium, and when the availability of free-iron is reduced by the presence of deferoxamine mesylate. Both pilus proteins were purified and biochemically and functionally characterized. The major repeating subunit of the straight pilus is a 17,000-mol wt polypeptide with amino acid sequence homology with Escherichia coli type 1 and Pap pili. The flexible pilus filament is a homopolymer composed of a novel 46 amino acid polypeptide. Resistance of the flexible pilus filament to disaggregation using various chemical treatments was demonstrated; its stability as a ...
The antibacterial effects of organic salts, chemical disinfectants and antibiotics were evaluated on cultures of Aeromonas hydrophila C03, Aeromonas sobria C26, A. sobria C29, Aeromonas caviae C24 and Acinetobacter sp. SH-94B, the pathogens that cause black disease found in fairy shrimps (Streptocephalus sirindhornae Sanoamuang et al. (2000) and Branchinella thailandensis Sanoamuang, Saengphan & Murugan) of Thailand. The minimal inhibitory concentrations (MICs) of organic salts (sodium chloride and potassium chloride) and antibiotics (oxytetracycline dihydrate, streptomycin sulphate, kanamycin monosulphate, chloramphenicol and ampicillin) were determined using the agar-dilution method. The effect of chemical disinfectants (sodium hypochlorite and chlorine dioxide) was evaluated by exposing bacteria to different concentrations of these chemicals for different periods of time. Interestingly, all strains were intrinsically resistant to 0.25-3% sodium chloride and potassium chloride. The effect of ...
Aeromonas salmonicida has been recognized as a pathogen of fish for over 100 years. In 1894 Emmerich and Weibel made the first report of its isolation during a disease outbreak at a Bavarian brown trout hatchery. The manifestations of the disease include furuncle-like swelling and, at a later stage, ulcerative lesions on infected trout. Since that time a number of subspecies of Aeromonas salmonicida have been recognized, although the taxonomy of the species is far from settled. While Aeromonas salmonicida was traditionally thought of as a pathogen of salmonids, global reports now confirm that this pathogen has been associated with clinical or covert disease in a variety of salmonid and non-salmonid species in freshwater, brackish water and sea water. Aeromonas salmonicida (strain A449) was isolated from a brown trout in the Eure River, France in 1975 and harbors one chromosome and 5 plasmids. Comparison to the related A.hydrophilia ATCC 7966 (AERHH) show the presence of numerous insertion ...
In this study we have examined the levels of protection against infection with a Danish strain of A. salmonicida subsp. salmonicida in both non-vaccinated, as well as vaccinated rainbow trout. Both a commercial vaccine (AlphaJect 3000, PHARMAQ AS) as well as an experimental auto-vaccine was tested. For comparison, the isolated adjuvant used in the commercial vaccine, as well as the one used in the experimental vaccine was included in the experimental setup. The protective effects of the vaccines were tested by bacterial challenge 18 weeks post vaccination, and during the 18 weeks, the development of specific antibodies was monitored using ELISA assays ...
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Vibrio sp. are found in marine and surface waters. Some of them can cause a disease in man as well as in marine vertebrates and invertebrates. Vibrio cholerae produces an enterotoxin that cause cholera, a profuse watery diarrhea that can rapidly lead to dehydration and death. - Aeromonas sp. is found predominantly in fresh water and in - Plesiomonas sp. exists in both cold- and warm-blooded animals, including many domesticated animals. - Campylobacter sp. is a common cause of enteritis in humans. Less commonly, Aeromonas sp. and rarely, Plesiomonas sp. have been associated with diarrheal disease in humans. - Helicobacter pylori has been associated with gastritis and ulcer The VIBROS ...
Infeksi bakteri merupakan salah satu masalah yang serius dalam pemeliharaan ikan, karena itu diagnosa yang dilakukan terhadap penyakit bakterial harus dilakukan dengan setepat mungkin. Selama bertahun-tahun banyak bakteri yang sudah dapat diidentifikasi sebagai penyebab sakit pada ikan salah satunya Aeromonas (Dixon, 1990). Aeromonas terdapat di air tawar, tanah dan pada ikan (Post, 1987). Merupakan bakteri…
A urinary tract infection (UTI) is an infection that affects part of the urinary tract.[1] When it affects the lower urinary tract it is known as a bladder infection (cystitis) and when it affects the upper urinary tract it is known as a kidney infection (pyelonephritis).[9] Symptoms from a lower urinary tract infection include pain with urination, frequent urination, and feeling the need to urinate despite having an empty bladder.[1] Symptoms of a kidney infection include fever and flank pain usually in addition to the symptoms of a lower UTI.[9] Rarely the urine may appear bloody.[6] In the very old and the very young, symptoms may be vague or non-specific.[1][10] The most common cause of infection is Escherichia coli, though other bacteria or fungi may rarely be the cause.[2] Risk factors include female anatomy, sexual intercourse, diabetes, obesity, and family history.[2] Although sexual intercourse is a risk factor, UTIs are not classified as sexually transmitted infections (STIs).[11] ...
Aeromonas hydrophila • Bacillus brevis • Bacillus Cereus • Bacillus megaterium • Bacillus subtilis • Burkholderia cepacia • ...
The word cholera is from Greek: χολέρα kholera from χολή kholē "bile". Cholera likely has its origins in the Indian subcontinent as evidenced by its prevalence in the region for centuries.[13] Early outbreaks in the Indian subcontinent are believed to have been the result of poor living conditions as well as the presence of pools of still water, both of which provide ideal conditions for cholera to thrive.[71] The disease first spread by trade routes (land and sea) to Russia in 1817, later to the rest of Europe, and from Europe to North America and the rest of the world.[13] Seven cholera pandemics have occurred in the past 200 years, with the seventh pandemic originating in Indonesia in 1961.[72] The first cholera pandemic occurred in the Bengal region of India, near Calcutta starting in 1817 through 1824. The disease dispersed from India to Southeast Asia, the Middle East, Europe, and Eastern Africa.[73] The movement of British Army and Navy ships and personnel is believed to have ...
Campylobacter, Yersinia, Aeromonas, and Plesiomonas spp. are less frequently found. Mechanisms of action vary: some bacteria ...
Protective levels of anticapsular antibodies are not achieved until 7-14 days following administration of a meningococcal vaccine, vaccination cannot prevent early onset disease in these contacts and usually is not recommended following sporadic cases of invasive meningococcal disease. Unlike developed countries, in sub-Saharan Africa and other under developed countries, entire families live in a single room of a house.[21][22] Meningococcal infection is usually introduced into a household by an asymptomatic person. Carriage then spreads through the household, reaching infants usually after one or more other household members have been infected. Disease is most likely to occur in infants and young children who lack immunity to the strain of organism circulating and who subsequently acquire carriage of an invasive strain.[23] By preventing susceptible contacts from acquiring infection by directly inhibiting colonization. Close contacts are defined as those persons who could have had intimate ...
... is a large family of Gram-negative bacteria. It was first proposed by Rahn in 1936, and now includes over 30 genera and more than 100 species. Its classification above the level of family is still a subject of debate, but one classification places it in the order Enterobacterales of the class Gammaproteobacteria in the phylum Proteobacteria.[2][3][4][5] Enterobacteriaceae includes, along with many harmless symbionts, many of the more familiar pathogens, such as Salmonella, Escherichia coli, Klebsiella, and Shigella. Other disease-causing bacteria in this family include Enterobacter and Citrobacter. Members of the Enterobacteriaceae can be trivially referred to as enterobacteria or "enteric bacteria",[6] as several members live in the intestines of animals. In fact, the etymology of the family is enterobacterium with the suffix to designate a family (aceae)-not after the genus Enterobacter (which would be "Enterobacteraceae")-and the type genus is Escherichia. ...
... are a class of gram-negative bacteria, and one of the eight classes of the phylum Proteobacteria.[1] The Betaproteobacteria are a class comprising over 75 genera and 400 species of bacteria.[2] Together, the Betaproteobacteria represent a broad variety of metabolic strategies and occupy diverse environments from obligate pathogens living within host organisms to oligotrophic groundwater ecosystems. Whilst most members of the Betaproteobacteria are heterotrophic, deriving both their carbon and electrons from organocarbon sources, some are photoheterotrophic, deriving energy from light and carbon from organocarbon sources. Other genera are autotrophic, deriving their carbon from bicarbonate or carbon dioxide and their electrons from reduced inorganic ions such as nitrite, ammonium, thiosulfate or sulfide [1] - many of these chemolithoautotrophic Betaproteobacteria are economically important, with roles in maintaining soil pH and in elementary cycling. Other economically ...
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Toxoplasmosis is becoming a global health hazard as it infects 30-50% of the world human population. Clinically, the life-long presence of the parasite in tissues of a majority of infected individuals is usually considered asymptomatic. However, a number of studies show that this 'asymptomatic infection' may also lead to development of other human pathologies. ... The seroprevalence of toxoplasmosis correlated with various disease burden. Statistical associations does not necessarily mean causality. The precautionary principle suggests however that possible role of toxoplasmosis as a triggering factor responsible for development of several clinical entities deserves much more attention and financial support both in everyday medical practice and future clinical research ...
... [1], previously known as Enterobacter aerogenes, is a Gram-negative, oxidase negative, catalase positive, citrate positive, indole negative, rod-shaped bacterium.[2] The bacterium is approximately 1-3 microns in length, and is capable of motility via peritrichous flagella.[3] K. aerogenes is a nosocomial and pathogenic bacterium that causes opportunistic infections including most types of infections. The majority are sensitive to most antibiotics designed for this bacteria class, but this is complicated by their inducible resistance mechanisms, particularly lactamase, which means that they quickly become resistant to standard antibiotics during treatment, requiring a change in antibiotic to avoid worsening of the sepsis. Some of the infections caused by K. aerogenes result from specific antibiotic treatments, venous catheter insertions, and/or surgical procedures. K. aerogenes is generally found in the human gastrointestinal tract and does not generally cause disease in ...
Aeromonas hydrophila/Aeromonas veronii *Aeromonas infection. ε. Campylobacterales. *Campylobacter jejuni *Campylobacteriosis, ...
Traditionally, gonorrhea was diagnosed with Gram stain and culture; however, newer polymerase chain reaction (PCR)-based testing methods are becoming more common.[16][28] In those failing initial treatment, culture should be done to determine sensitivity to antibiotics.[29] Tests that use polymerase chain reaction (PCR, aka nucleic acid amplification) to identify genes unique to N. gonorrhoeae are recommended for screening and diagnosis of gonorrhea infection. These PCR-based tests require a sample of urine, urethral swabs, or cervical/vaginal swabs. Culture (growing colonies of bacteria in order to isolate and identify them) and Gram-stain (staining of bacterial cell walls to reveal morphology) can also be used to detect the presence of N. gonorrhoeae in all specimen types except urine.[30][31] If Gram-negative, oxidase-positive diplococci are visualized on direct Gram stain of urethral pus (male genital infection), no further testing is needed to establish the diagnosis of gonorrhea ...
... (PUD) is a break in the inner lining of the stomach, the first part of the small intestine, or sometimes the lower esophagus.[1][7] An ulcer in the stomach is called a gastric ulcer, while one in the first part of the intestines is a duodenal ulcer.[1] The most common symptoms of a duodenal ulcer are waking at night with upper abdominal pain and upper abdominal pain that improves with eating.[1] With a gastric ulcer, the pain may worsen with eating.[8] The pain is often described as a burning or dull ache.[1] Other symptoms include belching, vomiting, weight loss, or poor appetite.[1] About a third of older people have no symptoms.[1] Complications may include bleeding, perforation, and blockage of the stomach.[2] Bleeding occurs in as many as 15% of cases.[2] Common causes include the bacteria Helicobacter pylori and non-steroidal anti-inflammatory drugs (NSAIDs).[1] Other, less common causes include tobacco smoking, stress due to serious illness, Behcet disease, ...
With a fatality risk approaching 15% within 12 hours of infection, it is crucial to initiate testing as quickly as possible, but not to wait for the results before initiating antibiotic therapy. A small amount of cerebrospinal fluid (CSF) is sent to the laboratory as soon as possible for analysis. The diagnosis is suspected, when Gram-negative diplococci are seen on Gram stain of a centrifuged sample of CSF; sometimes they are located inside white blood cells. The microscopic identification takes around 1-2 hours after specimen arrival in the laboratory.[3] The gold standard of diagnosis is microbiological isolation of N. meningitidis by growth from a sterile body fluid, which could be CSF or blood.[5] Diagnosis is confirmed when the organism has grown, most often on a chocolate agar plate, but also on Thayer-Martin agar. To differentiate any bacterial growth from other species a small amount of a bacterial colony is tested for oxidase, catalase for which all clinically relevant Neisseria show a ...
Plague has a long history as a biological weapon. Historical accounts from ancient China and medieval Europe detail the use of infected animal carcasses, such as cows or horses, and human carcasses, by the Xiongnu/Huns, Mongols, Turks and other groups, to contaminate enemy water supplies. Han Dynasty General Huo Qubing is recorded to have died of such a contamination while engaging in warfare against the Xiongnu. Plague victims were also reported to have been tossed by catapult into cities under siege. In 1347, the Genoese possession of Caffa, a great trade emporium on the Crimean peninsula, came under siege by an army of Mongol warriors of the Golden Horde under the command of Janibeg. After a protracted siege during which the Mongol army was reportedly withering from the disease, they decided to use the infected corpses as a biological weapon. The corpses were catapulted over the city walls, infecting the inhabitants. This event might have led to the transfer of the plague (Black Death) via ...
... , also known simply as paratyphoid, is a bacterial infection caused by one of the three types of Salmonella enterica.[1] Symptoms usually begin 6-30 days after exposure and are the same as those of typhoid fever.[1][3] Often, a gradual onset of a high fever occurs over several days.[1] Weakness, loss of appetite, and headaches also commonly occur.[1] Some people develop a skin rash with rose-colored spots.[2] Without treatment, symptoms may last weeks or months.[1] Other people may carry the bacteria without being affected; however, they are still able to spread the disease to others.[3] Both typhoid and paratyphoid are of similar severity.[3] Paratyphoid and typhoid fever are types of enteric fever.[7] Paratyphoid is caused by the bacterium Salmonella enterica of the serotypes Paratyphi A, Paratyphi B, or Paratyphi C growing in the intestines and blood.[1] They are usually spread by eating or drinking food or water contaminated with the feces of an infected person.[1] They may ...
Aeromonas sp. have been isolated from various infected sites from patients (bile, blood, peritoneal fluid, pus, stool and urine ... SdiA detects AHLs produced by other species of bacteria including Aeromonas hydrophila, Hafnia alvei, and Yersinia ... However, SdiA does become activated when Salmonella transits through turtles colonized with Aeromonas hydrophila or mice ... It has been documented that Aeromonas sobria has produced C6-HSL and two additional AHLs with N-acyl side chain longer than C6 ...
Wilkes, S.H.; Bayliss, M.E.; Prescott, J.M. (1988). "Critical ionizing groups in Aeromonas neutral protease". J. Biol. Chem. ... Wilkes, S.H.; Prescott, J.M. (1976). "Aeromonas neutral protease". Methods Enzymol. 45: 404-415. doi:10.1016/s0076-6879(76) ... Bayliss, M.E.; Wilkes, S.H.; Prescott, J.M. (1980). "Aeromonas neutral protease: specificity toward extended substrates". Arch ... Vibriolysin (EC 3.4.24.25, Aeromonas proteolytica neutral proteinase, aeromonolysin) is an enzyme. This enzyme catalyses the ...
A: Aeromonas spp.[citation needed] P: Proteus spp. (P. vulgaris) P: Providencia spp. M: Morganella morganii In vitro ...
Bacteria that test positive for cleaving indole from tryptophan include: Aeromonas hydrophila, Aeromonas punctata, Bacillus ... Aeromonas salmonicida, Alcaligenes sp., most Bacillus sp., Bordetella sp., Enterobacter sp., most Haemophilus sp., most ...
Cowell JL, Maser K, DeMoss, RD (1973). "Tryptophanase from Aeromonas liquifaciens. Purification, molecular weight and some ...
Pseudomonas/Aeromonas: Partial inhibition. If growth, colonies are blue. Bacteria that are not Vibrio but produce hydrogen ...
particularly Vibrio parahemolyticus) and related proteobacteria such as Aeromonas, two flagellar systems co-exist, using ... "Analysis of the Lateral Flagellar Gene System of Aeromonas hydrophila AH-3". Journal of Bacteriology. 188 (3): 852-862. doi: ... "Polar Flagellum Biogenesis in Aeromonas hydrophila". J. Bacteriol. 188 (2): 542-55. doi:10.1128/JB.188.2.542-555.2006. PMC ...
Aeromonas infection Skin lesion James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical ...
"Aldohexuronic acid catabolism by a soil Aeromonas". J. Bacteriol. 97 (1): 97-106. PMC 249554 . PMID 4388117. Molecular and ...
Despite difficulties in characterizing the exotoxins produced by Aeromonas species, there is accumulating evidence that these ... Infections due to Aeromonas hydrophila and Plesiomonas shigelloides in immuno-compromised hosts have been well documented, but ... Infections due to Aeromonas hydrophila and Plesiomonas shigelloides in immuno-compromised hosts have been well documented, but ... P. shigelloides, an organism closely related to Aeromonas species, may also cause diarrhea in the healthy host, but no ...
Aeromonas hydrophila has been isolated from urine, sputum, faeces and bile. It is resistant to many types of antibiotic ... Aeromonas hydrophila is associated with septicaemia, pneumonia and gastroenteritis in humans. In particular it causes ... Coloured transmission electron micrograph of thin-sectioned cells of Aeromonas hydrophila bacteria. It is a Gram- negative, rod ... Keywords: aeromonas, aeromonas causing, aeromonas hydrophila, antibiotic resistance, bacteria, bacterial, bacteriology, ...
Phenoloxidase is an important component of the defense against Aeromonas hydrophila infection in a crustacean, Pacifastacus ... Further, the interactions between host (crayfish) and pathogens (white spot syndrome virus and Aeromonas hydrophila, ... Aeromonas hydrophila, in the freshwater crayfish, Pacifastacus leniusculus. RNA interference-mediated depletion of crayfish ...
... This review summarizes the results of studies on atypical Aeromonas salmonicida (aAS) -infection among farmed Arctic charr ( ...
One of the most common bacteria that infect the wild and cultured Tilapia is Aeromonas sobria. Aeromonas sobria is water borne ... Aeromonas sobria veronii also causes a similar disease in fish including Motile Aeromonas Septicemia in Tilapia (Janda and ... The Motile Aeromonas infections have been recognized for many years and have been referred to by various names, including ... Antibacterial Activity of Jatropha Curcas and Tinospora Crispa Against Aeromonas Sobria Fish Pathogen Topics: Bacteria, ...
title = "Carboxy terminal region of haemolysin of Aeromonas sobria triggers dimerization",. abstract = "Haemolysin of Aeromonas ... Haemolysin of Aeromonas sobria is released into the culture supernatant in the form of prohaemolysin. Removal of a 42 amino ... N2 - Haemolysin of Aeromonas sobria is released into the culture supernatant in the form of prohaemolysin. Removal of a 42 ... AB - Haemolysin of Aeromonas sobria is released into the culture supernatant in the form of prohaemolysin. Removal of a 42 ...
The genetic organization and sequences of the group II capsule gene cluster of Aeromonas hydrophila PPD134/91 have been ... Leung, K. Y., Yeap, I. V., Lam, T. J. & Sin, Y. M. ( 1995 ). Serum resistance as a good indicator for virulence in Aeromonas ... Sakazaki, R. & Shimada, T. ( 1984 ). O-serogrouping scheme for mesophilic Aeromonas strains. Jpn J Med Sci Biol 37, 247-255.[ ... f Detection and genetic analysis of group II capsules in Aeromonas hydrophila MyBook is a cheap paperback edition of the ...
Aeromonas hydrophila is a gram-negative bacteria that causes motile Aeromonas septicemia (MAS) in many fish species. Typically ... The goal of this study was to determine a method for monitoring the number of Aeromonas spp. in catfish production ponds, and ... 30-33°C during the summer months), the amount of Aeromonas spp. present in the water decreased, but the amount present in the ... We are also in the process of completing DNA extractions from the samples to determine if the Aeromonas spp. that were present ...
Home » The Phytochemistry and The Anti-Bacterial Activity of Yellow Root (Arcangelisia flava Merr.) against Aeromonas ... The Phytochemistry and The Anti-Bacterial Activity of Yellow Root (Arcangelisia flava Merr.) against Aeromonas hydrophila. ...
Aeromonas aides leeches in digesting blood meals. H. medicinalis used after surgery has led to Aeromonas infections, most ... Aeromonas pneumonia due to episodes of near-drowning are frequently complicated by bacteremia and death. Aeromonas species are ... Members of the genus Aeromonas can be referred to as aeromonads (viz. trivialisation of names). Parte, A.C. "Aeromonas". www. ... Aeromonas species are endosymbionts of Hirudo medicinalis, a species of leech that is FDA-approved for use in vascular surgery ...
Aeromonas infections may cause skin infections manifesting as cellulitis, pustules, and furuncles. An infection usually only ... Minnaganti, V.R.; Patel, P.J.; Iancu, D.; Schoch, P.E. "Necrotizing fasciitis caused by Aeromonas hydrophila". Heart Lung. 29: ... ISBN 0-7216-2921-0. Abuhammour, W.; Hasan, R.A.; Rogers, D. "Necrotizing fasciitis caused by Aeromonas hydrophilia in an ... causes mild infections of the skin but can also cause a more a serious infection called gastroenteritis? Aeromonas ...
Aeromonas sp. TH038. ›Aeromonas sp. TH039. ›Aeromonas sp. TH098. ›Aeromonas sp. TH099. ›Aeromonas sp. TH101. ›Aeromonas sp. ... Aeromonas punctata. Other names i. ›"Aeromonas caviae" Eddy 1962. ›Aeromonas caviae (ex Eddy 1962) Popoff 1984. ›Aeromonas ... Aeromonas sp. TH111. ›Aeromonas sp. TH114. ›ATCC 15467 [[Aeromonas hydrophila subsp. anaerogenes]]. ›ATCC 15468. ›Bacillus ... Aeromonas hydrophila anaerogenes. More ». ›Aeromonas hydrophila subsp. anaerogenes Schubert 1964. ›Aeromonas hydrophila subsp. ...
Aeromonas bacteremia in an elderly immunocompetent patient.. Sebo P1, Sakbani K, Rohner P, Gavazzi G. ... Because of the absence of other risk factors for Aeromonas bacteremia, hepatic polycystic disease may take part in the onset of ... We report the case of an elderly immunocompetent patient with Aeromonas hydrophila bacteremia without evidence of portal of ...
Transcript of Aeromonas hydrophila. By Bri Martz Aeromonas hydrophila Morphology Prevention and Treatment Commonly Found In ... microbewiki.kenyon.edu/index.php/Aeromonas_Hydrophila http://cmr.asm.org/content/23/1/35.full#sec-13 http://iai.asm.org/content ...
Aeromonas hydrophila ATCC ® 35654™ Designation: LRA 3300 776 TypeStrain=False Application: Quality control strain Testing ... Aeromonas hydrophila (Chester) Stanier (ATCC® 35654-MINI-PACK™) Add to frozen 6 ready-to-use vials of ATCC® 35654™ in glycerol ... Aeromonas hydrophila (Chester) Stanier (ATCC® 35654™) Strain Designations: LRA 3300 776 [API SA, DSM 6173] / Type Strain: no / ... Aeromonas in Finished Water by Membrane Filtration using Ampicillin-Dextrin Agar with Vancomycin (ADA-V). Washington, DC: ...
Aeromonas hydrophila ATCC ® 7966™ Designation: TypeStrain=True Application: Quality control strain Reference material Testing ... Popoff M, Veron M. A taxonomic study of the Aeromonas hydrophila-Aeromonas punctata group. J. Gen. Microbiol. 94: 11-22, 1976. ... Aeromonas hydrophila (Chester) Stanier (ATCC® 7966D-5™) Add to freeze-dried Total DNA: At least 5 µg in 1X TE buffer. OD260/OD ... Aeromonas hydrophila (Chester) Stanier (ATCC® 7966™) Strain Designations: [CDC 359-60, IAM 12460, NCIB 9240, NCMB 86, NCTC 8049 ...
Aeromonas hydrophila subsp. decolorationis Aeromonas hydrophila subsp. dhakensis Aeromonas hydrophila subsp. hydrophila ... Aeromonas hydrophila is a member of the family Aeromonadaceae, and is only one of six species Aeromonas species that are known ... Aeromonas hydrophila are resistant to chlorine. Because it is so prevalent in aquatic environments, Aeromonas hydrophila can ... Aeromonas hydrophila. Chopra, Ashok K. and Clifford W. Houston. "Enterotoxins in Aeromonas-associated gastroenteritis." ...
Aeromonas hydrophila Subspecies: Aeromonas hydrophila subsp. anaerogenes, Aeromonas hydrophila subsp. decolorationis, Aeromonas ... Aeromonas hydrophila is the most well known of the six species belonging to the genus Aeromonas. It is rod- shaped, non- spore ... The Aeromonas hydrophila AexT is the first described and the smallest T3SS effector toxin found in mesophilic Aeromonas with a ... hydrophila ATCC 7966, and Aeromonas hydrophila subsp. ranaei [19]. Description and significance. Aeromonas hydrophila. ...
Depending on the type of Aeromonas bacteria the fish has, the veterinarian will prescribe medication to eliminate the infection ...
We also determined the taxonomic positions of the phenospecies Aeromonas allosaccharophila, Aeromonas encheleia, Aeromonas ... ichthiosmia are in fact identical to Aeromonas trota (HG13) and Aeromonas veronii (HG8/10), respectively. The results of this ... High-resolution genotypic analysis of the genus Aeromonas by AFLP fingerprinting.. Huys G1, Coopman R, Janssen P, Kersters K. ... A total of 98 Aeromonas type and reference strains were included in this study. For the AFLP analysis, the total genomic DNA of ...
Although the actual role of Aeromonas spp. as a human pathogen remains controversial, species of this genus may pose a serious ... Therefore, it is important to thoroughly study the mobilome of Aeromonas spp. that is widely distributed in various ... This review discusses the recently published information on MGE prevalent in Aeromonas spp. with special emphasis on plasmids ... This review discusses the recently published information on MGE prevalent in Aeromonas spp. with special emphasis on plasmids ...
Over the past decades, cutting edge research on Aeromonas genomics has promoted a tremendous advance in our knowledge of these ... Besides, Aeromonas has been gaining interest for antimicrobial resistance surveillance from water. However, research on ... Over the past decades, cutting edge research on Aeromonas genomics has promoted a tremendous advance in our knowledge of these ... As more genomes of Aeromonas spp have been sequenced, current research has focused on its pathogenesis, and biotechnological ...
Carbon metabolism is the most basic aspect of life. This map presents an overall view of central carbon metabolism, where the number of carbons is shown for each compound denoted by a circle, excluding a cofactor (CoA, CoM, THF, or THMPT) that is replaced by an asterisk. The map contains carbon utilization pathways of glycolysis (map00010), pentose phosphate pathway (map00030), and citrate cycle (map00020), and six known carbon fixation pathways (map00710 and map00720) as well as some pathways of methane metabolism (map00680). The six carbon fixation pathways are: (1) reductive pentose phosphate cycle (Calvin cycle) in plants and cyanobacteria that perform oxygenic photosynthesis, (2) reductive citrate cycle in photosynthetic green sulfur bacteria and some chemolithoautotrophs, (3) 3-hydroxypropionate bi-cycle in photosynthetic green nonsulfur bacteria, two variants of 4-hydroxybutyrate pathways in Crenarchaeota called (4) hydroxypropionate-hydroxybutyrate cycle and (5) ...
M00130 Inositol phosphate metabolism, PI=> PIP2 => Ins(1,4,5)P3 => Ins(1,3,4,5)P4 ...
... industrial applications and more information for Aeromonas ichthiosmia. ... Bacteria; Proteobacteria; Gammaproteobacteria; Aeromonadales; Aeromonadaceae; Aeromonas. Industrial uses or economic ...
  • Päivi Pylkön väitöskirjatutkimus osoittaa harjuksen ja nieriän olevan lohikaloista herkimpiä epätyyppisen Aeromonas salmonicida (aAS)-bakteerin aiheuttamalle tulehdukselle. (jyu.fi)
  • This review summarizes the results of studies on atypical Aeromonas salmonicida (aAS) -infection among farmed Arctic charr (Salvelinus alpinus) and European grayling (Thymallus thymallus) (later referred as charr and grayling, respectively). (jyu.fi)
  • Despite difficulties in characterizing the exotoxins produced by Aeromonas species, there is accumulating evidence that these bacteria are capable of causing usually mild, self-limited diarrheal disease in previously healthy adults. (rti.org)
  • P. shigelloides, an organism closely related to Aeromonas species, may also cause diarrhea in the healthy host, but no exotoxins have yet been identified by the assays used to identify other bacterial enterotoxins. (rti.org)
  • Aeromonas is a genus of Gram-negative, facultative anaerobic, rod-shaped bacteria that morphologically resemble members of the family Enterobacteriaceae. (wikipedia.org)
  • Members of the genus Aeromonas can be referred to as aeromonads (viz. (wikipedia.org)
  • The taxonomy and nomenclature of the genus Aeromonas Kluyver and van Niel 1936. (atcc.org)
  • High-resolution genotypic analysis of the genus Aeromonas by AFLP fingerprinting. (nih.gov)
  • We investigated the ability of a recently developed genomic fingerprinting technique, named AFLP, to differentiate the 14 currently defined DNA hybridization groups (HGs) in the genus Aeromonas. (nih.gov)
  • Bacteria of the genus Aeromonas are common in a variety of environments. (frontiersin.org)
  • The Aeromonas genus has undergone a number of taxonomic and nomenclature revisions in the past two decades [ 1 ]. (hindawi.com)
  • Dedicated to the genus Aeromonas , this book provides a comprehensive overview of current knowledge and authoritative research on the organisms, their taxonomy, ecology and pathogenicity. (caister.com)
  • This book brings together experts on this genus in order to serve as a comprehensive review of the current studies pertaining to Aeromonas. (caister.com)
  • Since its description by Kluyver and van Niel in 1936, the taxonomic structure of the genus Aeromonas has been drastically reshaped each time new technological advances were made in bacterial systematics. (caister.com)
  • The genus Aeromonas includes facultatively anaerobic, Gramnegative, non-spore-forming bacilli or coccobacilli that are generally motile, usually oxidase- and catalase-positive, able to reduce nitrate to nitrite and generally resistant to the vibriostatic agent O/129 (2,4-diamino-6,7-diisopropylpteridine) (Abbott et al. (spotidoc.com)
  • Synthetic oligonucleotide primers of 24 and 23 bases were used in a PCR assay to amplify a sequence of the lip gene, which encodes a thermostable extracellular lipase of Aeromonas hydrophila. (asm.org)
  • Initially, Aeromonas was placed in the family Vibrionaceae, but successive phylogenetic analyses revealed that Aeromonas is not closely related to Vibrios and resulted in moving Aeromonas to a new family, the Aeromonadaceae [ 2 , 3 ]. (hindawi.com)
  • The complete genome sequence of Aeromonas hydrophila ATCC 7966T reveals mechanisms contributing to virulence and metabolic condition that allow the organism to grow in a variety of environments and explains how Aeromonas hydrophila is able to survive in polluted or oxygen- poor environments and to colonize and cause illness in humans and other hosts. (kenyon.edu)
  • We established a reproducible swarming assay (0.5% Eiken agar in Difco broth, 30°C) for Aeromonas spp. (asm.org)
  • Our aims were to describe the molecular characteristics of the first cases of VIM-producing Aeromonas caviae isolated from human samples from two hospitals. (confex.com)