Generation of lysoglyceroglycolipids in the cyanobacterium, Phormidium tenue.
Two kinds of lysoglycolipids, monogalactosyl 1-monoacylglycerol and digalactosyl 1-monoacylglycerol were generated in the cyanobacterium, Phormidium tenue, when it was stored at -20 degrees for more than 1 month. By comparison of the compositions of fatty acid residues between monogalactosyl 1-monoacylglycerol and monogalactosyl diacylglycerol, digalactosyl 1-monoacylglycerol and digalactosyl diacylglycerol, respectively, the 1-monoacylgalactolipids were presumed to be formed by regioselective deacylation at the sn-1 position with subsequent acyl-group migration from the sn-2 to the sn-1 position. In contrast, 1-monoacyl derivatives of sulphoquinovosyl diacylglycerol and phosphatidylglycerol, the other membrane lipids contained in cyanobacteria, were not formed.
Faculty of Pharmaceutical Sciences, Nagoya City University, Japan.
N
N
Murakami
T
T
Morimoto
T
T
Ueda
S I
SI
Nagai
J
J
Sakakibara
N
N
Yamada
D002240:Carbohydrate Sequence; D000458:Cyanobacteria / Q000378:metabolism*; D005227:Fatty Acids / Q000378:metabolism; D006017:Glycolipids / Q000096:biosynthesis* / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure
D005227:Fatty Acids; D006017:Glycolipids