A New Type of Glycoglycerolipids from Corynebacterium aquaticum

Abstract

  A new type of glycoglycerolipids, S361A and S365A, were obtained from Corynebacterium aquaticum strains, S361 and S365, newly isolated from soils, and were identified as (2R)-1-[α-glucopyranosyl-(1α-3)-(6-O-acyl-α-mannopyranosyl)]-3-O-acylglycerol and (2R)- 1-[α-mannopyranosyl-(1α-3)-(6-O-acyl-α-mannopyra- nosyl)]-3-O-acylglycerol, respectively. S365A was identical to a novel glycoglycerolipid recently isolated from some bacteria, but S361A was a new analog having a glucosylmannosyl in place of the dimannosyl group. Our results indicate that this sn-2 lysotype of glyceroglycolipids may be widely distributed in bacteria.