WATER DEFICIENCY-INDUCED CHANGES IN THE CONTENTS OF DEFENSIVE SUBSTANCES AGAINST ACTIVE OXYGEN IN SPINACH LEAVES

被引：57

作者：

TANAKA, K ^{[1
]}

MASUDA, R ^{[1
]}

SUGIMOTO, T ^{[1
]}

OMASA, K ^{[1
]}

SAKAKI, T ^{[1
]}

机构：

[1] MAFF,NATL FOOD RES INST,TSUKUBA,IBARAKI 305,JAPAN

来源：

AGRICULTURAL AND BIOLOGICAL CHEMISTRY | 1990年 / 54卷 / 10期

关键词：

D O I：

10.1080/00021369.1990.10870355

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Changes in the contents of defensive substances against the active oxygen in water-stressed spinach plants were examined. The contents of ascorbate peroxidase (ΑΡ; EC 1.11.1.7), glutathione reductase (GR; EC 1.6.4.2) and α-tocopherol increased remarkably in water-stressed spinach leaves, while those of superoxide dismutase (SOD; EC 1.15.1.1), dehydroascorbate reductase (EC 1.8.5.1), ascorbate and glutathione changed little. The content of α-tocopherol in chloroplast thylakoid membranes isolated from water-stressed leaves was higher than that from normal leaves. It is, therefore, conceivable that GR, AP and α-tocopherol might be related to the tolerance of plants to water deficiency. © 1990 by the Japan Society for Bioscience, Biotechnology, and Agrochemistry.

引用

页码：2629 / 2634

页数：6

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