摘要
研究了干旱高温协同胁迫对玉米幼苗叶片和根中抗氧化防护系统所产生的影响.结果表明,干旱高温同时胁迫显著诱导了玉米幼苗叶片和根中抗氧化防护酶活性,如超氧物歧化酶(SOD)、过氧化氢酶(CAT)、抗坏血酸过氧化物酶(APX)和谷胱苷肽还原酶(GR)活性的提高.但对于叶片,高温对这几种酶活性的影响强于干旱;而对于根,干旱对这几种酶活性的影响强于高温.
The effect of collaborative stress of drought and high temperature on the antioxidant defense system of maize seedlings＇ leaves and roots was investigated. The results showed that the collaborative stress of drought and high temperature stress enhanced significantly the activities of antioxidant defense enzymes such as superoxide dismutase （SOD）, catalase （CAT） , ascorbate peroxidase （APX） and glutathione reductase （GR） of maize seedlings＇ leaves and roots compared with drought or high temperature stress. But for leaves, high temperature stress increased the activities of these enzymes more than that of drought stress; For roots, drought stress increased the activities of these enzymes more than that of high temperature stress.
出处
《河南农业大学学报》
CAS
CSCD
北大核心
2008年第4期363-366,共4页
Journal of Henan Agricultural University
基金
河南省教育厅自然科学基金项目(2008A180011)
关键词
玉米
干旱
高温
协同胁迫
抗氧化防护系统
Zea mays L.
drought
high temperature
collaborative stress
antioxidant defense system
