Deltaproteobacteria

Deltaproteobacteria is a class of Proteobacteria. They are a varied group of bacteria that include a variety of types that do not share many common characteristics apart from their phylogenetic relatedness. They include sulfate-reducing bacteria, many of which are anaerobes, as well as a number of important genera whose members are predatory on other bacteria, such as Bdellovibrio and Myxobacteria.

Classification[edit | edit source]

The Deltaproteobacteria comprise a branch of the Proteobacteria and consist of several orders, which are:

Characteristics[edit | edit source]

Deltaproteobacteria are characterized by their ability to reduce sulfate and other similar substances. They are typically found in environments with a lot of organic material, such as sediments or the intestinal tracts of animals. Some members of this class are predatory and can invade other bacteria.

Ecological Role[edit | edit source]

Deltaproteobacteria play a significant role in the sulfur cycle. They are responsible for the reduction of sulfate to sulfide, a process that is important in the decomposition of organic matter. They also contribute to the cycling of other elements, such as carbon and nitrogen.

Medical Importance[edit | edit source]

While most Deltaproteobacteria are not pathogenic, some can cause disease in humans and animals. For example, Desulfovibrio species have been associated with inflammatory bowel disease.

See Also[edit | edit source]

Deltaproteobacteria Resources
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