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Epsilonproteobacteria
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 vents ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alviniconcha Hessleri
''Alviniconcha'' is a genus of deep water sea snails, marine gastropod mollusks in the family Provannidae.Bouchet, P. (2013). Alviniconcha Okutani & Ohta, 1988. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=449922 on 2013-06-25 These snails are part of the fauna of the hydrothermal vents in the Indian and Western Pacific Ocean. These and another genus and species within the same family ('' Ifremeria nautilei'') are the only known currently existing animals whose nutrition is derived from an endosymbiotic relationship with a member of bacteria from phylum Campylobacterota (formerly Epsilonproteobacteria) occurs as an endosymbiont of the gills of ''Alviniconcha hessleri''.Yohey Suzuki, Takenori Sasaki, Masae Suzuki, Yuichi Nogi, Tetsuya Miwa, Ken Takai, Kenneth H. Nealson & Koki Horikoshi (September 2005) "Novel Chemoautotrophic Endosymbiosis between a Member of the Epsilonproteobacteria and the Hydrothermal-Vent Gastro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nautilia Profundicola
''Nautilia profundicola'' is a Gram-negative chemolithoautotrophic bacterium found around hydrothermal vents in the deep ocean. It was first discovered in 1999 on the East Pacific Rise at depth of , on the surface of the polychaete worm ''Alvinella pompejana''. ''Nautilia profundicola'' lives symbiotically on the dorsal hairs of ''A. pompejana'' but they may also form biofilms and live independently on the walls of hydrothermal vents. The ability of ''N. profundicola'' to survive in an anaerobic environment rich in sulfur, H2 and CO2 of varying temperature makes it a useful organism to study, as these are the conditions that are theorized to have prevailed around the time of the earliest life on earth. Morphology ''Nautilia profundicola'' is a motile, rod-shaped bacterium, around 0.4 μm long and 0.3 μm wide. Like most Campylobacterota (syn. Epsilonproteobacteria), it has an unsheathed polar flagellum. Physiology ''Nautilia profundicola'' lives among ... [...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] |
Campylobacter
''Campylobacter'' (meaning "curved bacteria") is a genus of Gram-negative bacteria. ''Campylobacter'' typically appear comma- or s-shaped, and are motile. Some ''Campylobacter'' species can infect humans, sometimes causing campylobacteriosis, a diarrhoeal disease in humans. Campylobacteriosis is usually self-limiting and antimicrobial treatment is often not required, except in severe cases or immunocompromised patients. The most known source for ''Campylobacter'' is poultry, but due to their diverse natural reservoir, ''Campylobacter'' spp. can also be transmitted ''via'' water. Other known sources of ''Campylobacter'' infections include food products, such as unpasteurised milk and contaminated fresh produce. Sometimes the source of infection can be direct contact with infected animals, which often carry ''Campylobacter'' asymptomatically. At least a dozen species of ''Campylobacter'' have been implicated in human disease, with ''C. jejuni'' (80–90%) and '' C. coli'' (5-10%) b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Conserved signature inserts and deletions (CSIs) in protein sequences provide an important category of molecular markers for understanding phylogenetic relationships. CSIs, brought about by rare genetic changes, provide useful phylogenetic markers ... have been identified which, along with the proteins, serve as ... [...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'' Nagata et al. 2017 *'' Nautilia'' Miroshnichenko ''et al.'' 2002 **'' Nautilia abyssi'' Alain ''et al.'' 2009 **'' Nautilia lithotrophica'' Miroshnichenko ''et al.'' 2002 **'' Nautilia nitratireducens'' Pérez-Rodríguez ''et al.'' 2010 **''Nautilia profundicola ''Nautilia profundicola'' is a Gram-negative chemolithoautotrophic bacterium found around hydrothermal vents in the deep o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfurovum
''Sulfurovum'' is a genus within the ''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 ...'' which was first described in 2004 with the isolation and description of the type species ''Sulfurovum lithotrophicum'' from Okinawa trough hydrothermal sediments. Named for their ability to oxidize sulfur and their egg-like shape, cells are gram-negative, coccoid to short rods. Mesophilic chemolithoautotrophic growth occurs by oxidation of sulfur compounds coupled to the reduction of nitrate or molecular oxygen. References Bacteria genera Campylobacterota {{Campylobacterota-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nautiliia
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'' Nagata et al. 2017 *'' Nautilia'' Miroshnichenko ''et al.'' 2002 **'' Nautilia abyssi'' Alain ''et al.'' 2009 **'' Nautilia lithotrophica'' Miroshnichenko ''et al.'' 2002 **'' Nautilia nitratireducens'' Pérez-Rodríguez ''et al.'' 2010 **''Nautilia profundicola ''Nautilia profundicola'' is a Gram-negative chemolithoautotrophic bacterium found around hydrothermal vents in the deep o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desulfurellia
The Desulfurellaceae are a small family of 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 ..., given their own order. References Campylobacterota {{Campylobacterota-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silva Comprehensive Ribosomal RNA Database
SILVA is a ribosomal RNA database established in collaboration between the Microbial Genomics Group at the Max Planck Institute for Marine Microbiology in Bremen, Germany, the Department of Microbiology at the Technical University Munich, and Ribocon. Release 117 of the database (January 2014) held more than 4,000,000 small subunit (SSU - 16S/18S) and 400,000 large subunit In structural biology, a protein subunit is a polypeptide chain or single protein molecule that assembles (or "''coassembles''") with others to form a protein complex. Large assemblies of proteins such as viruses often use a small number of ty ... (LSU - 23S/28S) sequences. Sequences are provided as files for the ARB software environment. See also * List of biological databases#RNA databases References {{reflist, refs= Marc P. Hoeppner, Lars E. Barquist, Paul P. Gardner (2014)An Introduction to RNA Databases ''Methods in Molecular Biology'' 1097: 107–123. {{doi, 10.1007/978-1-62703-709-9_6. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
'The All-Species Living Tree' Project
The All-Species Living Tree' Project is a collaboration between various academic groups/institutes, such as ARB Project, ARB, SILVA rRNA database project, and List of Prokaryotic names with Standing in Nomenclature, LPSN, with the aim of assembling a database of 16S ribosomal RNA, 16S rRNA sequences of all validly published species of ''Bacteria'' and ''Archaea''. At one stage, 23S ribosomal RNA, 23S sequences were also collected, but this has since stopped. Currently there are over 10,950 species in the aligned dataset and several more are being added either as new species are discovered or species that are not represented in the database are sequenced. Initially the latter group consisted of 7% of species. Similar (and more recent) projects include the Genomic Encyclopedia of Bacteria and Archaea (GEBA), which focused on whole genome sequencing of bacteria and archaea. Tree The tree was created by maximum likelihood analysis without bootstrap: consequently accuracy is traded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
