Abstract
The order Rhodocyclales, phylogenetically affiliated with the Betaproteobacteria, currently (April, 2012) consists of a single family, the Rhodocyclaceae, with 18 genera (Rhodocyclus [type genus], Azoarcus, Azonexus, Azospira, Azovibrio, Dechloromonas, Dechlorobacter, Denitratisoma, Ferribacterium, Georgfuchsia, Methyloversatilis, Propionivibrio, Quatrionicoccus, Sterolibacterium, Sulfuritalea, Thauera, Uliginosibacterium, and Zoogloea), and a total of 45 species. Members of the order display many different modes of living: There are anoxygenic photoheterotrophs; plant-associated nitrogen-fixing aerobes, species that degrade a wide range of carbon sources including many aromatic compounds, using oxygen, nitrate, chlorate, perchlorate, selenate, and other electron acceptors; and sulfur-oxidizing chemoautotrophs, methylotrophs, and anaerobes that perform propionic acid fermentation. These highly disparate organisms are classified within a single family solely on the basis of 16S rRNA phylogeny. Representatives have been isolated from diverse environments: soil; sewage treatment plants; polluted and unpolluted waters of ponds, rivers, and aquifers; and plant roots. Some aromatic compound-degrading members have considerable potential for biodegradation of organic waste material and bioremediation of polluted environments.
| Original language | American English |
|---|---|
| Title of host publication | The Prokaryotes |
| Subtitle of host publication | Alphaproteobacteria and Betaproteobacteria |
| Publisher | Springer-Verlag Berlin Heidelberg |
| Pages | 975-998 |
| Number of pages | 24 |
| Volume | 9783642301971 |
| ISBN (Electronic) | 9783642301971 |
| ISBN (Print) | 3642301967, 9783642301964 |
| DOIs | |
| State | Published - 1 Aug 2014 |
Bibliographical note
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