摘要
对低浓度Na2CO3胁迫下星星草幼苗相对电导率、O2.—产生速率、H2O2含量以及保护酶CAT、SOD和POD活性的研究结果表明,低盐胁迫1 d后,星星草幼苗细胞膜的通透性、O2.—产生速率、H2O2含量及保护酶活性都随着盐胁迫的加剧而升高,其具体的变化规律与盐胁迫强度和幼苗细胞膜的受损伤程度密切相关,但相关关系的性质上具有差异。
The study concerns with the relative electric conductance, 02 produce-rate, H2O2 content, and SOD, POD and CAT activity of P. tenuiflora seedlings stressed by 0 - 1.0% Na2C03 for ld. The results showed that the cell membrane, O^-2 produce-rate, H2O2 content, defensive enzymes activity are increased along with the prick up of low density salt stress, but specific change rule of that is relevant to the saline stress intensity and to the extent of the plasma membrane of seedlings was harmed, and the character of the relationship is different.
出处
《植物研究》
CAS
CSCD
北大核心
2006年第3期308-312,共5页
Bulletin of Botanical Research
基金
国家自然科学基金项目(30270234)
关键词
星星草
相对电导率
O^-2产生速率
H2O2含量
保护酶活性
Puccinellia tenuiflora
relative electric conductance
O^-2 produce-rate
H2O2 content
defen-sive enzymes activity
