LIPID AND STEROL COMPOSITION OF PLASMA-MEMBRANES ISOLATED FROM STELE AND CORTEX OF MAIZE ROOTS

被引：10

作者：

COWAN, DSC

COOKE, DT

CLARKSON, DT

HALL, JL

机构：

[1] UNIV SOUTHAMPTON,DEPT BIOL,BIOMED SCI BLDG,SOUTHAMPTON SO9 3TU,HANTS,ENGLAND

[2] UNIV BRISTOL,AFRC,DEPT AGR SCI,INST ARABLE CROPS RES,LONG ASHTON RES STN,BRISTOL BS18 9AF,AVON,ENGLAND

来源：

JOURNAL OF EXPERIMENTAL BOTANY | 1993年 / 44卷 / 262期

关键词：

ZEA-MAYS; CORTEX; PHOSPHOLIPIDS; PLASMA MEMBRANE; STELE; STEROLS;

D O I：

10.1093/jxb/44.5.991

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The phospholipid and sterol contents of plasma membranes isolated from stele and cortex of maize roots were compared. The major sterol present in both tissues was stigmasterol which was found in significantly higher quantities in the cortex (27.4 mug mg-1 membrane protein) compared to the stele (17.4 mug mg-1). Other sterols detected included sitosterol, campesterol and small quantities of cholesterol. The major phospholipids found were phosphatidylethanolamine (PE) and phosphatidylcholine (PC), with PC more abundant in the stele. The fatty acid composition indicated that the major fatty acid in both stele and cortex was 16:0 (palmitic), with others found in lesser amounts.

引用

页码：991 / 994

页数：4

共 21 条

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