The effect of polyethylene glycol on proline accumulation in rice leaves

被引：100

作者：

Hsu, SY ^{[1
]}

Hsu, YT ^{[1
]}

Kao, CH ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Agron, Taipei 106, Taiwan

来源：

BIOLOGIA PLANTARUM | 2003年 / 46卷 / 01期

关键词：

abscisic acid; arginine; glutamic acid; ornithine; ornithine-delta-aminotransferase; Oryza sativa; relative water content; water stress;

D O I：

10.1023/A:1022362117395

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The regulation of proline accumulation in polyethylene glycol (PEG, -1.5 MPa) treated rice leaves was investigated. PEG treatment resulted in a decrease in relative water content, indicating that PEG treatment caused water stress in rice leaves. Proline accumulation caused by PEG was related to protein hydrolysis, an increase in ornithine-8-aminotransferase activity, an increase in the content of ammonia, and an increase in the contents of the precursors of proline biosynthesis, glutamic acid, ornithine, and arginine. Results also show that abscisic acid accumulation is not required for proline accumulation in PEG-treated rice leaves.

引用

页码：73 / 78

页数：6

共 49 条

[1] PROLINE ACCUMULATION UNDER HEAVY-METAL STRESS [J].