|
Campylobacteria
The Campylobacterales are an order of Campylobacterota which make up the epsilon subdivision, together with the small family Nautiliaceae. They are Gram-negative. Most of the species are microaerophilic.Garrity, George M.; Brenner, Don J.; Krieg, Noel R.; Staley, James T. (eds.) (2005). Bergey's Manual of Systematic Bacteriology, Volume Two: The Proteobacteria, Part C: The Alpha-, Beta-, Delta-, and Epsilonproteobacteria. New York, New York: Springer. . Molecular signatures Comparative genomic analysis has led to the identification of 49 proteins which are uniquely found in virtually all species of the order Campylobacterales. Additionally, two conserved signature indels have been identified which, along with the proteins, serve as molecular markers for the order. The indels are a three-amino-acid insertion in the B protein of the Uvr ABC system, and a two-amino-acid deletion in phenylalanyl-tRNA synthetase.Gupta, R. S. (2006). Molecular signatures (unique proteins and cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfurimonas
Sulfurimonas is a bacterial genus within the class of Campylobacterota, known for reducing nitrate, oxidizing both sulfur and hydrogen, and containing Group IV hydrogenases. This genus consists of four species: ''Sulfurimonas autorophica'', ''Sulfurimonas denitrificans'', ''Sulfurimonas gotlandica'', and ''Sulfurimonas paralvinellae''. The genus' name is derived from "''sulfur"'' in Latin and ''"monas"'' from Greek, together meaning a “sulfur-oxidizing rod”. The size of the bacteria varies between about 1.5-2.5 μm in length and 0.5-1.0 μm in width. Members of the genus ''Sulfurimonas'' are found in a variety of different environments which include deep sea-vents, marine sediments, and terrestrial habitats. Their ability to survive in extreme conditions is attributed to multiple copies of one enzyme. Phylogenetic analysis suggests that members of the genus ''Sulfurimonas'' have limited dispersal ability and its speciation was affected by geographical isolation rather than hydr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arcobacter
''Arcobacter'' is a genus of Gram-negative, spiral-shaped bacteria in the phylum Campylobacterota.Madigan T, ''et al'' (2009) ''Brock Biology of Microorganisms'', 12th edition. San Francisco: Pearson Education It shows an unusually wide range of habitats, and some species can be human and animal pathogens. Species of the genus ''Arcobacter'' are found in both animal and environmental sources, making it unique among the Campylobacterota. This genus currently consists of five species: ''A. butzleri'', ''A. cryaerophilus'', ''A. skirrowii'', ''A. nitrofigilis'', and ''A. sulfidicus'', although several other potential novel species have recently been described from varying environments. Three of these five known species are pathogenic. Members of this genus were first isolated in 1977 from aborted bovine fetuses. They are aerotolerant, ''Campylobacter''-like organisms, previously classified as ''Campylobacter''. The genus ''Arcobacter'', in fact, was created as recently as 1992. Alt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campylobacterota
Campylobacterota are a phylum of bacteria. All species of this phylum are Gram-negative. The Campylobacterota consist of few known genera, mainly the curved to spirilloid '' Wolinella'' spp., '' Helicobacter'' spp., and ''Campylobacter'' spp. Most of the known species inhabit the digestive tracts of animals and serve as symbionts (''Wolinella'' spp. in cattle) or pathogens (''Helicobacter'' spp. in the stomach, ''Campylobacter'' spp. in the duodenum). Many Campylobacterota are motile with flagella. Numerous environmental sequences and isolates of Campylobacterota have also been recovered from hydrothermal vents and cold seep habitats. Examples of isolates include '' Sulfurimonas autotrophica'', '' Sulfurimonas paralvinellae'', '' Sulfurovum lithotrophicum'' and '' Nautilia profundicola''. A member of the phylum Campylobacterota occurs as an endosymbiont in the large gills of the deepwater sea snail '' Alviniconcha hessleri''. The Campylobacterota found at deep-sea hydrothermal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitratifractor
''Nitratifractor'' is a genus of bacteria from the order Campylobacterales, with one known species (''Nitratifractor salsuginis ''Nitratifractor'' is a genus of bacteria from the order Campylobacterales The Campylobacterales are an order of Campylobacterota which make up the epsilon subdivision, together with the small family Nautiliaceae. They are Gram-negative. Most ...''). References Campylobacterota Bacteria genera {{Campylobacterota-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolinella
The genus ''Wolinella'' is a member of the Campylobacterales order of Bacteria. The order Campylobacterales includes human pathogens such as ''Helicobacter pylori'' and ''Campylobacter jejuni''. Strains The only publicly available strain of ''Wolinella'' is '' Wolinella succinogenes'' DSM 1740 (ATCC 29543). The original isolation of this organism was done by M. J. Wolin, E. A. Wolin and N. J. Jacobs at the University of Illinois. This original isolation was done from bovine rumen fluid and was somewhat serendipitous as the researchers were intending to isolate methanogenic organisms. This bacterium was originally classified as ''Vibrio succinogenes'', but was reclassified in 1981 to ''Wolinella succinogenes'' by A. C. R. Tanner ''et al''. Strains of ''Wolinella'' have been isolated from feline and canine oral cavities. Only one strain is currently published with ''Candidatus'' status: ''Candidatus Wolinella africanus''. This strain was isolated from the upper digestive tracts of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campylobacter Jejuni
''Campylobacter jejuni'' () is a species of pathogenic bacteria, one of the most common causes of food poisoning in Europe and in the US. The vast majority of cases occur as isolated events, not as part of recognized outbreaks. Active surveillance through the Foodborne Diseases Active Surveillance Network (FoodNet) indicates that about 20 cases are ''diagnosed'' each year for each 100,000 people in the US, while many more cases are undiagnosed or unreported; the CDC estimates a total of 1.5 million infections every year. The European Food Safety Authority reported 246,571 cases in 2018, and estimated approximately nine million cases of human campylobacteriosis per year in the European Union. ''Campylobacter'' is a genus of bacteria that is among the most common causes of bacterial infections in humans worldwide. Campylobacter means "curved rod", deriving from the Greek ''kampylos ''(curved) and ''baktron'' (rod). Of its many species, ''C. jejuni'' is considered one of the most i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microaerophilic
A microaerophile is a microorganism that requires environments containing lower levels of dioxygen than that are present in the atmosphere (i.e. < 21% O2; typically 2–10% O2) for optimal growth. A more restrictive interpretation requires the microorganism to be obligate in this requirement. Many microaerophiles are also capnophiles, requiring an elevated concentration of (e.g. 10% CO2 in the case of '''' ). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram-negative
Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wall sandwiched between an inner cytoplasmic cell membrane and a bacterial outer membrane. Gram-negative bacteria are found in virtually all environments on Earth that support life. The gram-negative bacteria include the model organism ''Escherichia coli'', as well as many pathogenic bacteria, such as '' Pseudomonas aeruginosa'', '' Chlamydia trachomatis'', and '' Yersinia pestis''. They are a significant medical challenge as their outer membrane protects them from many antibiotics (including penicillin), detergents that would normally damage the inner cell membrane, and lysozyme, an antimicrobial enzyme produced by animals that forms part of the innate immune system. Additionally, the outer leaflet of this membrane comprises a complex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nautiliaceae
The Nautiliaceae are a family of bacteria placed in an order to itself, Nautiliales, or in the order Campylobacterales. The members of the family are all thermophilic. They are: *'' Caminibacter'' Alain ''et al.'' 2002 **'' Caminibacter hydrogeniphilus'' Alain ''et al.'' 2002 **'' Caminibacter mediatlanticus'' Voordeckers ''et al.'' 2005 **'' Caminibacter profundus'' Miroshnichenko ''et al.'' 2004 *'' Cetia'' Grosche ''et al.'' 2015 **'' Cetia pacifica'' Grosche ''et al.'' 2015 *''Lebetimonas'' Takai ''et al.'' 2005 **''Lebetimonas acidiphila'' Takai ''et al.'' 2005 **''Lebetimonas natsushimae ''Lebetimonas natsushimae'' is a moderately thermophilic, strictly anaerobic and chemoautotrophic bacterium from the genus of ''Lebetimonas ''Lebetimonas'' is a genus of bacteria from the family Nautiliaceae. References Further reading ...'' Nagata et al. 2017 *'' Nautilia'' Miroshnichenko ''et al.'' 2002 **'' Nautilia abyssi'' Alain ''et al.'' 2009 **'' Nautilia lithotrophica'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
