| 空间搭载后的蜀葵幼苗叶中光合色素含量及抗氧化酶活性变化 |
| |
| 引用本文： | 薛淮,刘敏,张纯花,潘毅.空间搭载后的蜀葵幼苗叶中光合色素含量及抗氧化酶活性变化[J].植物生理学通讯,2003,39(6):592-594. |
| |
| 作者姓名： | 薛淮 刘敏 张纯花 潘毅 |
| |
| 作者单位： | 中国科学院遗传与发育生物学研究所,北京,100101 |
| |
| 基金项目： | 国家 8 63基金项目 ( 863 2 7 3 ) |
| |
| 摘 要： | 蜀葵种子经返回式卫星搭载后,其幼苗叶中光合色素(叶绿素a、b,胡萝卜素)总量低于地面未经搭载的.叶绿素a b含量明显降低, 叶绿素b的下降幅度远大于叶绿素a,因而Chla/b值增高.经空间搭载后萌发12 d的幼苗体内超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性均低于地面未经搭载的,而丙二醛(MDA)含量则明显升高.
|
| 关 键 词： | 空间飞行 蜀葵 光合色素 抗氧化酶活性 |
| 修稿时间： | 2002年12月24 |
The Change of Photosynthetic Pigment Contents and Antioxidase Activity of Hollyhock Seedling Leaves After Space Flight |
| |
| XUE Huai,LIU Min ,ZHANG Chun-Hua,PAN Yi.The Change of Photosynthetic Pigment Contents and Antioxidase Activity of Hollyhock Seedling Leaves After Space Flight[J].Plant Physiology Communications,2003,39(6):592-594. |
| |
| Authors: | XUE Huai LIU Min ZHANG Chun-Hua PAN Yi |
| |
| Institution: | XUE Huai,LIU Min *,ZHANG Chun-Hua,PAN Yi |
| |
| Abstract: | The changes on photosynthetic pigment contents and antioxidase activity of space flown hollyhock plants were studied. The results showed that the total amount of photosynthetic pigments (Chl+Car) in space flighted seedlings were lower due to significant reduction of chlorophyll a+b content . And the relative reduction range of chlorophyll b far exceeded that of chlorophyll a, so that Chl a/b ratio was higher than that of ground controls. After space flight for 12 days, the activities of SOD, POD and CAT decreased, and the content of MDA increased obviously. |
| |
| Keywords: | space flight hollyhock photosynthetic pigment antioxidase activity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
