Diacylglycerolipids isolated from a thermophile cyanobacterium from the Euganean hot springs.
The Phormidium sp. ETS-05 thermophile blue-green alga is one of the most typical and widespread species of cyanobacteria of the thermal muds of the Euganean hot springs, the therapeutic properties of which have been known since ancient times. The polar diacylglycerolipids of this cyanobacterium consists of monogalactosyldiacylglycerol, digalactosyldiacylglycerol, sulfoquinovosyldiacylglycerol and phosphatidylglycerol. We have isolated and purified these four diacylglycerolipids from ETS-05, and then analysed them for their quantitative and structural features and fatty acid contents. The monogalactosyldiacylglycerol and digalactosyldiacylglycerol show a marked presence of polyunsaturated fatty acids, of which C18 : 4 is the most common. We propose that these glycoglycerolipids can be used as markers for monitoring the thermal mud colonisation process.
Marcolongo
Gabriele
G
Dipartimento di Scienze Chimiche, Università di Padova, Padova, Italy. gabriele.marcolongo@unipd.it
de Appolonia
Francesca
F
Venzo
Alfonso
A
Berrie
Christopher P
CP
Carofiglio
Tommaso
T
Ceschi Berrini
Cristina
C
D000458:Cyanobacteria / Q000737:chemistry* / Q000254:growth & development; D004075:Diglycerides / Q000302:isolation & purification*; D005227:Fatty Acids / Q000737:chemistry; D038983:Galactolipids / Q000302:isolation & purification; D045482:Hot Springs / Q000382:microbiology*; D007558:Italy; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010715:Phosphatidylglycerols / Q000302:isolation & purification
D004075:Diglycerides; D005227:Fatty Acids; D038983:Galactolipids; D010715:Phosphatidylglycerols; C007388:digalactosyldiacylglycerol; C009909:monogalactosyldiacylglycerol