Methylobacterium
Encyclopedia
The Methylobacteria are a genus of Rhizobiales
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http://microbewiki.kenyon.edu/index.php/Methylobacterium
Phylogenetic tree
http://www.oeb.harvard.edu/faculty/marx/images/clip_image004copy.gif
Rhizobiales
Rhizobiales is an order of alpha proteobacteria. They are gram-negative.The rhizobia, which fix nitrogen and are symbiotic with plant roots, appear in several different families here. The Bradyrhizobiaceae, Hyphomicrobiaceae, Phyllobacteriaceae, and Rhizobiaceae are the four families that contain...
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http://microbewiki.kenyon.edu/index.php/Methylobacterium
Phylogenetic tree
http://www.oeb.harvard.edu/faculty/marx/images/clip_image004copy.gif