首页 | 本学科首页   官方微博 | 高级检索  
     


Metabolism of molecular species of sulpholipid in barley leaves
Authors:Rodney G. Nicholls  J.L. Harwood
Affiliation:Department of Biochemistry, University College, Cardiff, CFL 1XL, U.K.
Abstract:Molecular species of sulpholipid (diacylsulphoquinovosylglycerol) were separated and analysed after incubation of developing barley (Hordeum vulgare) leaves with either (1-14C]-acetate or [35S]-sulphate. The major endogenous molecular species were the trienoic (42%) and the hexaenoic (39%). However, the combined anenoic, monoenoic and dienoic species, which only accounted for 5% of the mass, represented 80% of the labelled species with either precursor. In one experiment, 90% of this radioactivity was found in the dienoic species. The effect of light on the labelling of the molecular species was examined. Acetate is incorporated primarily into the fatty acids of sulpholipid. Transacylation appears to be important in the interconversion of the molecular species of sulpholipid.
Keywords:Gramineae  sulpholipid  diacylsulphoquinovosylglycerol  leaf labelling  molecular species  fatty acids  light effect.
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号