低钾胁迫下玉米逆境反应机制初探  

Preliminary Study on the Response Mechanism to the Environmental Stress

作　　者：薛艳茹[1] 曹敏建[1] 王晓光[1] 邵继梅[1] 闫洪奎[1] 

机构地区：[1]沈阳农业大学,沈阳110161

出　　处：《玉米科学》2008年第2期101-103,共3页Journal of Maize Sciences

摘　　要：采用低钾和正常供钾的液培方式,研究耐低钾玉米自交系Y8对低钾胁迫的适应性生理生化反应机制。结果表明:与不耐低钾玉米自交系J13相比,低钾胁迫下耐低钾玉米自交系Y8的SOD活性降低,CAT活性增加,Pro含量增加,MDA含量明显减少,POD活性和AsA含量基本稳定。Adopting the method of culturing in the nutrient solutions with low and normal potassium, the adaptive mechanism of physiological and biochemical traits responding to the low potassium on maize inbred line Ys tolerating to potassium deficiency was studied. The results showed that, comparing with maize inbred line J13 non-tolerating to potassium deficiency, its CAT activity increased, SOD activity decreased, Pro content increased, MDA content reduced obviously, POD activity and AsA content unchanged under the low potassium stress

关 键 词：玉米 低钾胁迫 耐性 逆境反应 

分 类 号：S513.01[农业科学—作物学]