| Betaproteobacteria | |
|---|---|
| Rickettsia rickettsii | |
| Scientific classification | |
| Phylum: | Proteobacteria |
| Class: | Betaproteobacteria |
| Orders | |
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Burkholderiales - e.g. Bordetella |
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Betaproteobacteria is a class of Proteobacteria.[1] Betaproteobacteria are, like all Proteobacteria, gram-negative.
The Betaproteobacteria consist of several groups of aerobic or facultative bacteria that are often highly versatile in their degradation capacities, but also contain chemolithotrophic genera (e.g., the ammonia-oxidising genus Nitrosomonas) and some phototrophs (members of the genera Rhodocyclus and Rubrivivax). Betaproteobacteria play a role in nitrogen fixation in various types of plants, oxidizing ammonium to produce nitrite- an important chemical for plant function. Many of them are found in environmental samples, such as waste water or soil.[2] Pathogenic species within this class are the Neisseriaceae (gonorrhea and meningitis) and species of the genus Burkholderia.
Orders and families include:
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