期刊论文

中文

农业现代化研究

1000-0275

2007

28

1

104-106

10.3969/j.issn.1000-0275.2007.01.027

国家自然科学基金《植物激素、植酸与杂交水稻籽粒灌浆的关系及其调控的研究》（编号:30600049）；

本校为第一机构

通过比较盐、冷、热激三种不同胁迫预处理后超级稻幼苗在低温伤害条件下含水量、过氧化氢酶（catalase,CAT酶）活性、同工酶谱、内源激素的变化,初步研究超级稻的适应性机制。结果表明,水稻幼苗经过不同胁迫预处理后,与未处理的对照苗相比,含水量有所提高;热激预处理苗CAT酶活性高于对照,而盐迫和低温则稍低于对照;同工酶谱变化各有异同,也有其独特性;冷处理苗的脱落酸（abscisic acid,ABA）含量高于对照,而热激处理苗ABA含量稍低于对照,三种预处理苗的赤霉素（gibberellin,GA 3）、玉米素（zeatin,Z）、吲哚乙酸（indole-3-acetic acid,IAA）含量均高于未处理苗。

The changes of the water contents,activities hormones in super rice seedlings with salt,cold and of CAT enzyme,POD isoenzyme zymograms and plant heat shock pre-treatment were measured in order to preliminary research on the mechanism of adaptation of super rice.By comparing with non-pretreated control （CK）,the water contents,the CAT activities of heat pre-treated seedlings were higher than CK. In contrast,the CAT enzyme activity of salt pre-treated seedlings and cold pre-treated ones were lower than CK.The POD isoenzymes zymograms were differ...