roseicitreum roseicitreum roseicitreum is a gram-negative, aerobic and non-motile genus of bacteria from the family of rhodobacteraceae with one known species (roseicitreum antarcticum). roseicitreum antarcticum has been isolated from sediments from the zhongshan station from the antarctica. roseicitreum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: roseicitreumyu et al. 2011 type species roseicitreum antarcticum species r. antarcticum