生物技术通报Issue(7)：112-118,7.
交替氧化酶在麻疯树盐胁迫响应中的作用
The Possible Role of Alternative Oxidase in Jatropha curcas L. Responses to Salt Stress
余璐璐 1吴阳晨 2王静静 1魏倩 1徐飞1
作者信息
- 1. 武汉生物工程学院生物科学与技术系，武汉 430415
- 2. 四川大学生命科学学院，成都 610064
- 折叠
摘要
Abstract
Jatropha curcas L. is a stress-resistant oil species and can growth well in lands with low-rainfall harsh climate conditions. However, the mechanism of Jatropha curcas L. tolerance to adverse environment conditions is still unclear. In this study, the role of alternative oxidase(AOX)in Jatropha curcas L. response to salt stress was investigated. The results showed that Jatropha curcas L. was good tolerance to 200 mmol/L and 400 mmol/L NaCl stresses, and no significant differences in chlorophyll contents and water contents between treated and untreated control plants. 1 mol/L NaCl treatment obviously suppressed plant growth and leaf development, reduced leaf stomatal conductance, but no serious oxidative damages were shown. Moreover, it should be noted that AOX pathway respiration and AOX gene transcription was induced markedly under salt stresses. Compared with control plants, AOX transcription increased two-fold in response to 200 mmol/L and 400 mmol/L salt treatments, and increased three-fold under 1 mol/L NaCl treatment. Therefore, it hypothesis that AOX plays an important role in Jatropha curcas L. salt stress tolerance.关键词
麻疯树/交替氧化酶/盐胁迫/胁迫损伤Key words
Jatropha curcas L./Alternative oxidase/Salt stress/Oxidative damage引用本文复制引用
余璐璐,吴阳晨,王静静,魏倩,徐飞..交替氧化酶在麻疯树盐胁迫响应中的作用[J].生物技术通报,2014,(7):112-118,7.
