Effects of water-deficit on lipids of safflower aerial parts

被引:82
作者
Hamrouni, I
Ben Salah, H
Marzouk, B
机构
[1] INRST, Lab Adaptat & Ameliorat Plantes, Hammam Lif 2050, Tunisia
[2] INRAT, Lab Culture Ind, Ariana 2080, Tunisia
关键词
Carthamus tinctorius l; compositeae; safflower; drought-stress; fatty acids; lipids;
D O I
10.1016/S0031-9422(01)00210-2
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
Three-week-old plants of safflower (Carthamus tinctorius L.) were subjected to a water-deficit stress. The lipid composition of the shoot parts of both control (well-watered) and water stressed plants was analyzed. Experimental data revealed that moderate stress induced an increase in total lipid content within all lipidic classes. However, severe water-deficit induced a sharp decrease in the total lipid content and specially in polar lipids, particularly in phosphatidylethanolamine, phosphatidylcholine, monogalactosyldiacylglycerol and digalactosyl-diacylglycerol. Also, the content of neutral lipids was increased. Concerning the fatty acid composition, water-deficit induced a decrease in their degree of unsaturation expressed by a reduction in the proportions of linolenic (18:3) and linoleic (18:2) acids and most of lipidic classes. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:277 / 280
页数:4
相关论文
共 20 条
[1]  
Aid Fatiha, 1995, P387
[2]  
Belhassen Eric, 1995, Cahiers Agricultures, V4, P251
[3]   PLANT MEMBRANE LIPIDS [J].
BENSON, AA .
ANNUAL REVIEW OF PLANT PHYSIOLOGY, 1964, 15 :1-&
[4]  
BLIGH EG, 1959, CAN J BIOCHEM PHYS, V37, P911
[5]   ADAPTATION OF A MACRO-SCALE METHOD TO MICROSCALE FOR FATTY-ACID METHYL TRANS-ESTERIFICATION OF BIOLOGICAL LIPID EXTRACTS [J].
CARREAU, JP ;
DUBACQ, JP .
JOURNAL OF CHROMATOGRAPHY, 1978, 151 (03) :384-390
[6]   EFFECTS OF DROUGHT-STRESS ON LIPIDS IN RAPE LEAVES [J].
DAKHMA, WS ;
ZARROUK, M ;
CHERIF, A .
PHYTOCHEMISTRY, 1995, 40 (05) :1383-1386
[7]  
DEVOS CHR, 1993, PLANT PHYSIOL BIOCH, V31, P151
[8]  
HEGAZY HSO, 1992, METABOLISM STRUCTURE
[9]  
HUBAC C, 1989, PLANT PHYSIOL BIOCH, V27, P737
[10]   IDENTIFICATION AND COMPOSITION OF TURNIP ROOT LIPIDS [J].
LEPAGE, M .
LIPIDS, 1967, 2 (03) :244-&