curtobacterium curtobacterium curtobacterium is a genus of bacteria of the order actinomycetales. they are gram-positive soil organisms. curtobacterium scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: microbacteriaceae genus: curtobacteriumyamada and komagata 1972 (approved lists 1980) type species curtobacterium citreum(komagata and iizuka 1964) yamada and komagata 1972 (approved lists 1980) species c. albidum (komagata and iizuka 1964) yamada and komagata 1972 (approved lists 1980) c. ammoniigenes aizawa et al. 2007 c. citreum (komagata and iizuka 1964) yamada and komagata 1972 (approved lists 1980) c. flaccumfaciens (hedges 1922) collins and jones 1984 c. herbarum behrendt et al. 2002 c. luteum (komagata and iizuka 1964) yamada and komagata 1972 (approved lists 1980) "c. oceanosedimentum (carty and litchfield 1978) kim et al. 2009 c. plantarum dunleavy 1989 c. pusillum (iizuka and komagata 1965) yamada and komagata 1972 (approved lists 1980) an analysis of curtobacterium sequences from around the globe revealed the genus to be a cosmopolitan terrestrial taxon, with isolates derived primarily from plant and soil habitat.