Rhizobiales This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Rhizobiales".
Aurantimonadaceae Bartonellaceae Beijerinckiaceae Bradyrhizobiaceae Brucellaceae Hyphomicrobiaceae Methylobacteriaceae Methylocystaceae Phyllobacteriaceae Rhizobiaceae Rhodobiaceae
Rhizobiales is an order of alpha proteobacteria. The rhizobia, which fix nitrogen and are symbiotic with plant roots, appear in several different families here.