Epsilonproteobacteria

イプシロンプロテオバクテリア

• プシロンプロテオバクテリア

関

epsilon proteobacteria

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/02/15 13:47:00」(JST)

wiki en

[Wiki en表示]

Epsilonproteobacteria
Campylobacter
Scientific classification
Domain:	Bacteria
Phylum:	Proteobacteria
Class:	Epsilonproteobacteria
Orders
Nautiliales Nautiliaceae Caminibacter Lebetimonas Nautilia Nitratifractor Nitratiruptor Thioreductor Campylobacterales Hydrogenimonadaceae Hydrogenimonas Campylobacteraceae Candidatus Thioturbo' Arcobacter Campylobacter Sulfurospirillum Helicobacteraceae Helicobacter Sulfuricurvum Sulfurimonas Sulfurovum Thiovulum Wolinella

Epsilonproteobacteria are a class of Proteobacteria. All species of this class are, like all Proteobacteria, Gram-negative.

The Epsilonproteobacteria 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).

Numerous environmental sequences and isolates of Epsilonproteobacteria 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 class Epsilonproteobacteria occurs as an endosymbiont in the large gills of the deepwater sea snail Alviniconcha hessleri.

The Epsilonproteobacteria found at deep-sea hydrothermal vents characteristically exhibit chemolithotrophy, meeting their energy needs by oxidizing reduced sulfur, formate, or hydrogen coupled to the reduction of nitrate or oxygen. Autotrophic Epsilonproteobacteria use the reverse Krebs cycle to fix carbon dioxide into biomass, a pathway originally thought to be of little environmental significance. The oxygen sensitivity of this pathway is consistent with their microaerophilic or anaerobic niche in these environments, and their likely evolution in the Mesoproterozoic oceans, which are thought to have been sulfidic with low levels of oxygen available from cyanobacterial photosynthesis.

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI) and the phylogeny is based on 16S rRNA-based LTP release 106 by 'The All-Species Living Tree' Project

Nautiliaceae Thioreductor micantisoli Nakagawa et al.2005 Caminibacter Alain et al.2002 Lebetimonas acidiphila Takai et al.2005 Nautilia Miroshnichenko et al.2002 Nitratiruptor tergarcus Nakagawa et al.2   Campylobacterales Hydrogenimonas thermophila Takai et al.2004 ?Sulfuricurvum kujiense Kodama and Watanabe 2004 ?Thiovulum majus ♪ Hinze 1913 Nitratifractor salsuginis Nakagawa et al.2005 Sulfurovum lithotrophicum Inagaki et al.2004 Sulfurimonas Inagaki et al.2003 emend. Takai et al.2006   Helicobacteraceae Wolinella Tanner et al.1981 Helicobacter Goodwin et al.1989 emend. Vandamme et al.1991   Campylobacteraceae ?Candidatus Thioturbo danicus Muyzer et al. 2005 Arcobacter Vandamme et al.1991 emend. Vandamme et al.1992 Sulfurospirillum Schumacher et al.1993 emend. Luijten et al.2003 Campylobacter Sebald and Véron 1963 emend. Vandamme et al.2010

Notes:

• Prokaryotes where no pure (axenic) cultures are isolated or available, i.e. not cultivated or can not be sustained in culture for more than a few serial passages

References

External links

• Epsilonproteobacteria at the US National Library of Medicine Medical Subject Headings (MeSH)

English Journal

• A microcosm approach to evaluate the degradation of tributyltin (TBT) by Aeromonas molluscorum Av27 in estuarine sediments.

• Cruz A1, Henriques I2, Sousa AC2, Baptista I2, Almeida A2, Takahashi S3, Tanabe S3, Correia A2, Suzuki S3, Anselmo AM4, Mendo S2.
• Environmental research.Environ Res.2014 Jul;132:430-7. doi: 10.1016/j.envres.2014.04.031. Epub 2014 May 21.
• Tributyltin (TBT) is a biocide extremely toxic to a wide range of organisms, which has been used for decades in antifouling paints. Despite its global ban in 2008, TBT is still a problem of great concern due to the high levels trapped in sediments. Aeromonas molluscorum Av27 is a TBT degrading bacte
• PMID 24858283

• Deep-sea hydrothermal vent Epsilonproteobacteria encode a conserved and widespread nitrate reduction pathway (Nap).

• Vetriani C1, Voordeckers JW1, Crespo-Medina M1, O'Brien CE1, Giovannelli D2, Lutz RA3.
• The ISME journal.ISME J.2014 Jul;8(7):1510-21. doi: 10.1038/ismej.2013.246. Epub 2014 Jan 16.
• Despite the frequent isolation of nitrate-respiring Epsilonproteobacteria from deep-sea hydrothermal vents, the genes coding for the nitrate reduction pathway in these organisms have not been investigated in depth. In this study we have shown that the gene cluster coding for the periplasmic nitrate
• PMID 24430487

• Sulfurovum aggregans sp. nov., a novel hydrogen-oxidizing, thiosulfate-reducing chemolithoautotroph within the Epsilonproteobacteria isolated from a deep-sea hydrothermal vent chimney at the Central Indian Ridge, and an emended description of the genus Sulfurovum.

• Mino S1, Kudo H2, Takayuki A3, Sawabe T3, Takai K4, Nakagawa S5.
• International journal of systematic and evolutionary microbiology.Int J Syst Evol Microbiol.2014 Jun 25. pii: ijs.0.065094-0. doi: 10.1099/ijs.0.065094-0. [Epub ahead of print]
• A novel mesophilic, strictly hydrogen-oxidizing, sulfur-, nitrate- and thiosulfate-reducing bacterium, designated strain Monchim33T, was isolated from a deep-sea hydrothermal vent chimney at the Central Indian Ridge. The non-motile, rod-shaped cells were Gram-negative and non-sporulating. Growth was
• PMID 24966202

Japanese Journal

• Microbial Diversity in Deep-sea Methane Seep Sediments Presented by SSU rRNA Gene Tag Sequencing

• NUNOURA TAKURO,TAKAKI YOSHIHIRO,KAZAMA HIROMI [他],HIRAI MIHO,ASHI JUICHIRO,IMACHI HIROYUKI,TAKAI KEN
• Microbes and environments 27(4), 382-390, 2012-12-01
• … The dominant members of Archaea were Deep-sea Hydrothermal Vent Euryarchaeotic Group 6 (DHVEG 6), Marine Group I (MGI) and Deep Sea Archaeal Group (DSAG), and those in Bacteria were Alpha-, Gamma-, Delta- and Epsilonproteobacteria, Chloroflexi, Bacteroidetes, Planctomycetes and Acidobacteria. …
• NAID 10031125935

• Microbial Communities Associated with Holothurians : Presence of Unique Bacteria in the Coelomic Fluid

• ENOMOTO MASAKI,NAKAGAWA SATOSHI,SAWABE TOMOO
• Microbes and environments 27(3), 300-305, 2012-09-01
• … In the holothurian coelomic fluid, potentially metabolically active and phylogenetically unique members of Epsilonproteobacteria and Rickettsiales were discovered. …
• NAID 10030869557

• Effects of Hydrogen Sulfide on Bacterial Communities on the Surface of Galatheid Crab, Shinkaia crosnieri, and in a Bacterial Mat Cultured in Rearing Tanks

• Konishi Masaaki,Watsuji Tomo-o,Nakagawa Satoshi,Hatada Yuji,Takai Ken,Toyofuku Takashi
• Microbes and Environments, 2012
• … By phylogenetic analysis of partial 16S rRNA gene, we detected several clones related to symbionts of deep sea organisms in Alphaproteobacteria, Gammaproteobacteria, Epsilonproteobacteria, and Flavobacteria, from a crab with H2S feeding. …
• NAID 130001877519

Related Links

• Epsilonproteobacteriaとは - goo Wikipedia (ウィキペディア)

Epsilonproteobacteria are a class of Proteobacteria. [1] All species of this class are, like all Proteobacteria, Gram-negative. The Epsilonproteobacteria consist of few known genera, mainly the curved to spirilloid Wolinella spp., Helicobacter ...

• Epsilonproteobacteria

DIVERSITY OF LIFE DESCRIPTION OF THE PHYLUM EPSILONPROTEOBACTERIA (STACKENBRANDT ET AL. 1988) EUBACTERIA>PROTEOBACTERIAE>EPSILONPROTEOBACTERIA Epsilonproteobacteria (ep-si-lon-PRO-te-o ...

---

★リンクテーブル★

リンク元	「epsilon proteobacteria」「イプシロンプロテオバクテリア」

「epsilon proteobacteria」

　　[★]

イプシロンプロテオバクテリア

• プシロンプロテオバクテリア

関

Epsilonproteobacteria

「イプシロンプロテオバクテリア」

　　[★]

英

epsilon proteobacteria、Epsilonproteobacteria