zoogloea oryzae zoogloea oryzae zoogloea oryzae is a nitrogen-fixing, catalase and oxidase-positiv, motile bacterium with a polar flagellum from the genus of zoogloea which was isolated from the soil from a rice paddy field. zoogloea oryzae scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: rhodocyclales family: rhodocyclaceae genus: zoogloea species: z. oryzae binomial name zoogloea oryzaexie and yokota 2006 type strain a-7, cctcc ab 2052005, iam 15218, jcm 21672, nbrc 102407