profundibacterium profundibacterium profundibacterium is a gram-negative and strictly aerobic genus of bacteria from the family of rhodobacteraceae with one known species (profundibacterium mesophilum). profundibacterium mesophilum has been isolated from sea-floor sediments from the red sea in saudi arabia. profundibacterium scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: profundibacteriumlai et al. 2013 type species profundibacterium mesophilum species p. mesophilum