LYSOPHOSPHATIDYLCHOLINE BIOSYNTHESIS IN DEVELOPING BARLEY

被引：5

作者：

BAISTED, DJ ^{[1
]}

机构：

[1] LORD RANK RES CTR,DEPT BIOCHEM,HIGH WYCOMBE,BUCKINGHAMSHIRE,ENGLAND

来源：

PHYTOCHEMISTRY | 1979年 / 18卷 / 08期

关键词：

acetate-2-[[!sup]14[!/sup]C; barley heads; biosynthesis; choline-methyl-[[!sup]14[!/sup]C]; compartmentation; Gramineae; Hordeum distichum; lysophosphatidylcholine; phosphatidylcholine; starch lipid;

D O I：

10.1016/0031-9422(79)83010-1

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Acetate-2-[14C] and choline-Me-[ 14C], absorbed through the stems of isolated barley heads, were used to label lysophosphatidylcholine (LPC) and phosphatidylcholine (PC) of the endosperm tissue. Labelling of LPC occurred in barley heads at almost all stages of development but was at a maximum when the fr. wt of the seeds had attained ca 60-70% of their maximum wt. In time-course experiments labelling of PC from each substrate reached a maximum after 50 hr and then declined. Label in LPC, however, continued to accumulate throughout 72 hr. Stimulation of labelling of LPC from choline-Me-[14C] by sucrose was observed. A bound form of LPC (starch lipid) and a free form were distinguished by differential solvent extraction. © 1979.

引用

页码：1293 / 1296

页数：4

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