title: The occurrence and possible significance of diacylglyceryl ether lipids in abalone.
abstract: Gonadal and foot tissues of the green abalone, Haliotis fulgens, farm-raised on macroalgal [corrected] diets, were analyzed for lipids using thin-layer chromatography/flame-ionization detection and gas chromatography-mass spectrometry (GC-MS). Diacylglyceryl ether (DAGE) was 0.7% of total lipids in the gonad. The major alkyl constituents of the glyceryl ether diols in the gonad (as % of total diols) were 16:0 (38%) and 18:1 (36%). While levels of DAGE in the abalone foot were below flame-ionization detection limits, glyceryl ether diols from them were detected using the more sensitive GC-MS procedure. The major diol components in the foot were 18:0 (39%) and 18:1 (32%). To our knowledge, this is the first report of DAGE in abalone tissues. Although the precise role of DAGE in abalone remains to be determined, a possible structural role may exist.
authors.affiliation: Department of Biology, San Diego State University, California 92182-4614, USA. mnelson@sunstroke.sdsu.edu
authors.forename: M M
authors.initials: MM
authors.lastname: Nelson
authors.forename: P D
authors.initials: PD
authors.lastname: Nichols
authors.forename: D L
authors.initials: DL
authors.lastname: Leighton
mesh_terms: D000818:Animals; D002855:Chromatography, Thin Layer; D004075:Diglycerides / Q000737:chemistry*; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D008974:Mollusca / Q000737:chemistry*
chemical_list: D004075:Diglycerides