摘要
甘蒙柽柳 (TamarixaustrmongolicaNakai)、多枝柽柳 (T .ramosissimaLedeb .)、中国柽柳 (T .chinensisLour.)、短穗柽柳 (T .LaxaWild .)、刚毛柽柳 (T .hispidaWild .)、密花柽柳 (T .arceuthoidesBge.)、甘肃柽柳(T .gansuensisH .Z .Zhang .)和短毛柽柳 (T .kareliniiBge.)在土壤水分胁迫条件下 ,膜保护酶超氧化物歧化酶(SOD)、过氧化物酶 (POD)活性在整个干旱处理过程中先上升而后下降 ,8种柽柳SOD、POD活性达最高的处理时间种间存在差异。膜脂过氧化产物丙二醛 (MDA)含量在干旱处理中没有持续增加 。
In this paper, the change characteristics of superoxide (SOD), peroxidase (POD) and MDA of 8 species of Tamarix under droughts are researched. The results show that, under the conditions of soil moisture stress, the activation of SOD and POD of Tamarix austrmongolica, T. ramosissima, T. chinensis, T. laxa, T. hispida, T. arceuthoides, T. gansunensis and T. karelinii, increases at first and then decreases in the whole drying treatment process. There are some differences among the activation of SOD and POD of the 8 species of Tamarix. In the drying treatment, the content of MDA does not increase and is in a bimodal change.
出处
《干旱区研究》
CSCD
2002年第3期17-20,共4页
Arid Zone Research
基金
国家自然科学基金资助项目 ( 39470 0 85 )
中国科学院"西部之光"计划项目
