sphaerisporangium rubeum sphaerisporangium rubeum sphaerisporangium rubeum is an actinomycete species of bacteria first isolated from sandy soil. it produces branching substrate mycelia and spherical spore vesicles on aerial hyphae that contain non-motile spores. they also contained diaminopimelic acid and the n-acetyl type of peptidoglycan. its type strain is 3d-72(35)t (=jcm 13067t =dsm 44936t). sphaerisporangium rubeum scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: streptosporangiales family: streptosporangiaceae genus: sphaerisporangium species: sphaerisporangium rubeumara and kudo, 2007, emend. cao et al., 2009