安徽农业科学2012，Vol.40Issue(28)：13825-13827,13873,4.
盐碱胁迫下羊草的生理特性与适应机制
Physiological Characteristics and Adaptive Mechanism in Leymus chinensis under Salt and Alkali Stresses
摘要
Abstract
[Objective ] To discuss the physiological and biochemical characteristics and K+ , Na+ contents changes in Leymus chinensis under alkali-saline stress. [Method] Different pH saline-alkali soil was simulated to grow Leymus chinensis indoor, and measure its physiological index and ion concentration. [Result] With the gradual increasing soil pH and extending stress time, the proline, soluble protein, MDA contents and oxidation hydrogen enzyme activity in Leymus chinensis increased, and then gradually reduced. Na+ contents gradually increased, and K+ contents in Leymus chinensis blade gradually reduced with the pH rising, K+/ Na+ ratio decreased, but still higher than 1. [Conclusion]The changes of physiological indices , K+ and Na+ contents have a positive regulatory role in maintaining the ionic balance of Leymus chinensis cells.关键词
羊草/盐碱胁迫/生理特性/适应机制Key words
Leymus chinensis / Salinity-alkalinity stress/ Physiological characteristics/ Adaptive mechanism分类
农业科技引用本文复制引用
李新玲,徐香玲,张月学..盐碱胁迫下羊草的生理特性与适应机制[J].安徽农业科学,2012,40(28):13825-13827,13873,4.基金项目
黑龙江省科技攻关项目(GA06B103-10). （GA06B103-10）
