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The recently described aerobic, extremely halophilic archaeobaterium, Halobacterium lacusprofundi was subjected to lipid analysis so that comparisons could be made between existing lipid data and that of the new isolate. This investigation showed that the major respiratory lipoquinones present were MK-8 and MK-8(VIII-H2), a feature found in other members of the family Halobacteriaceae. The polar lipids comprised the diether derivatives of phosphatidly glycerol, phosphatidyl glycerophosphate, phosphatidly glycerosulphate, a diglycosyl diether and its sulphate derivative. The data presented shows that Halobacterium locusprofundi is related to Hb. saccharovorum and Hb. sodomense, and is in agreement with phylogenetic data.
Brian J. Tindall (Mon,) studied this question.