LIPID-CONTENT IN LEAVES OF DESCHAMPSIA-ANTARCTICA FROM THE MARITIME ANTARCTIC

被引：19

作者：

ZUNIGA, GE

ALBERDI, M

FERNANDEZ, J

MONTIEL, P

CORCUERA, LJ

机构：

[1] UNIV CHILE, FAC CIENCIAS, SANTIAGO, CHILE

[2] UNIV SANTIAGO CHILE, FAC CIENCIA, DEPT QUIM, SANTIAGO, CHILE

[3] UNIV AUSTRAL CHILE, FAC CIENCIAS, INST BOT, VALDIVIA, CHILE

[4] UCL, DEPT BIOCHEM & MOLEC BIOL, LONDON, ENGLAND

来源：

PHYTOCHEMISTRY | 1994年 / 37卷 / 03期

关键词：

DESCHAMPSIA ANTARCTICA; GRAMINEAE; COLD STRESS; FATTY ACIDS; FREEZING TOLERANCE; POLAR LIPIDS;

D O I：

10.1016/S0031-9422(00)90335-2

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：

Deschampsia antarctica plants were collected in Robert Island, Maritime Antarctica, and frozen in liquid nitrogen. Polar lipids and the composition of fatty acids in phospholipids and galactolipids were analysed in leaves and roots. Compared to other Gramineae, no unusual contents in polar lipids and in the degree of unsaturation of fatty acids in most lipid fractions were found. The highest unsaturation ratio (unsaturated/saturated fatty acids) of 3.3 was found in the phosphatidylinositol fraction. Although summer environmental temperatures in Robert Island are usually around 0 degrees, leaves often reach higher temperatures, which are near their photosynthetic optimum.

引用

页码：669 / 672

页数：4

共 21 条

[1]

ALBERDI M, 1991, PHYTOCHEMISTRY, V30, P3177, DOI 10.1016/0031-9422(91)83172-H

[2] COLD-ACCLIMATION IN CULTIVARS OF AVENA-SATIVA [J].