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From Wikipedia, the free encyclopedia

Scientific classification
Domain: Bacteria
Phylum: Proteobacteria
Class: Epsilonproteobacteria

   Campylobacterales - e.g. Helicobacter

Epsilonproteobacteria is a class of Proteobacteria.[1]

The Epsilonproteobacteria consist few known genera, mainly the curved to spirilloid Wolinella spp., Helicobacter spp., and Campylobacter spp. Most of the known species inhabit the digestive tract of animals and serve as symbionts (Wolinella spp. in cows) or pathogens (Helicobacter spp. in the stomach, Campylobacter spp. in the duodenum).

There have also been numerous environmental sequences of Epsilonproteobacteria recovered from hydrothermal vents and cold seep habitats. A member of Bacteria from class Epsilonproteobacteria occurs as endosymbiont of large gills of deep water sea snail Alviniconcha hessleri.[2]


  1. ^ "". Retrieved 2009-03-19.  
  2. ^ 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 Gastropod Alviniconcha aff. hessleri (Gastropoda: Provannidae) from the Indian Ocean". Applied and Environmental Microbiology, 71(9): 5440-5450. doi:10.1128/AEM.71.9.5440-5450.2005

External links



Up to date as of January 23, 2010

From Wikispecies


Main Page
Superregnum: Bacteria
Regnum: Bacteria
Phylum: Proteobacteria
Subphylum: delta/epsilon subdivisions
Familia: Epsilonproteobacteria
Genera: unclassified Epsilonproteobacteria - environmental samples - Campylobacterales - Nautiliales -



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