Epsilonproteobacteria

Epsilonproteobacteria is a class of Proteobacteria. They are a diverse group of bacteria that includes a variety of pathogens, such as Helicobacter pylori, which can cause stomach ulcers. Epsilonproteobacteria are also important in terms of environmental microbiology.

Classification

Epsilonproteobacteria is a class within the phylum Proteobacteria. The class is further divided into two orders: Campylobacterales and Nautiliales.

Characteristics

Epsilonproteobacteria are Gram-negative bacteria. They are typically microaerophilic, meaning they require low levels of oxygen to survive. Some species are chemolithotrophic, obtaining energy by oxidizing inorganic substances, such as sulfur and hydrogen.

Pathogenicity

Several species of Epsilonproteobacteria are known to be pathogenic. For example, Helicobacter pylori is a well-known pathogen that can cause stomach ulcers and has been linked to stomach cancer.

Environmental Importance

Epsilonproteobacteria play a significant role in the sulfur and nitrogen cycles. They are often found in environments with high sulfur concentrations, such as hydrothermal vents and sulfur springs.

See Also

• Proteobacteria
• Helicobacter pylori
• Campylobacterales
• Nautiliales

References

Epsilonproteobacteria Resources
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