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Until the 2021 revision of bacterial taxonomy by the ICSP, the entire phylum was classified within the Proteobacteria (synonym Pseudomonadota) as the Epsilonproteobacteria. [5] 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 ...
- Campylobacterota, Waite et al. 2021
Dec 24, 2022 · Identify the characteristics of Epsilonproteobacteria. Epsilonproteobacteria is a class of Proteobacteria. All species of this class are, like all Proteobacteria, Gram-negative. Figure: Epsilonproteobacteria: Campylobacter bacteria are the number-one cause of food-related gastrointestinal illness in the United States.
The Epsilonproteobacteria consist of few known genera, mainly the curved to spirillum Wolinella spp., Helicobacter spp., and Campylobacter spp. Most of the known species inhabit the digestive tract of animals and serve as symbiotic ( Wolinella spp. in cows) or pathogens ( Helicobacter spp. in the stomach, Campylobacter spp. in the duodenum).
The class Epsilonpreotobacteria was additionally identified within the Pseudomonadota phylum. This class is characterized by its significance as chemolithotrophic primary producers and its metabolic prowess in deep-sea hydrothermal vent ecosystems. [18] .
- Pseudomonadota, Garrity et al. 2021
Epsilonproteobacteria. The smallest class of Proteobacteria is Epsilonproteobacteria, which are gram-negative microaerophilic bacteria (meaning they only require small amounts of oxygen in their environment). Two clinically relevant genera of Epsilonproteobacteria are Campylobacter and Helicobacter, both of which include human pathogens.
May 2, 2006 · The ε-proteobacteria have recently been recognized as globally ubiquitous in modern marine and terrestrial ecosystems, and have had a significant role in biogeochemical and geological processes...
Epsilonproteobacteria comprise host-associated heterotrophic species (exemplary genera include Campylobacter, Helicobacter and Wolinella) as well as free-living species that have been isolated mostly from sulphidic terrestrial and marine habitats (Sulfurospirillum, Sulfurimonas, Nautilia) (Campbell, Engel, Porter, & Takai, 2006).
