| ideonella azotifigens sp. nov., an aerobic diazotroph of the betaproteobacteria isolated from grass rhizosphere soil, and emended description of the genus ideonella. | strain 1a22t, a nitrogen-fixing bacterium, was isolated from soil associated with the rhizosphere of a perennial grass growing in a fallow agricultural field in ithaca, new york, usa. analysis of the 16s rrna gene sequence placed the strain in the rubrivivax-roseateles-leptothrix-azohydromonas-aquincola-ideonella branch of the betaproteobacteria and the closest characterized relative was the type strain of ideonella dechloratans (97.7% 16s rrna sequence similarity). cells of strain 1a22t were gr ... | 2009 | 19567574 |