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| 棉花不同耐高温品系的SOD、POD、CAT活性和MDA含量差异及其对盛花期高温胁迫的响应 | |
| 引用本文： | 邓茳明,熊格生,袁小玲,贾菲,刘志.棉花不同耐高温品系的SOD、POD、CAT活性和MDA含量差异及其对盛花期高温胁迫的响应[J].棉花学报,2010,22(3):242-247. |
| 作者姓名： | 邓茳明 熊格生 袁小玲 贾菲 刘志 |
| 作者单位： | 1. 湖南农业大学生物科学技术学院,长沙,410128 2. 湖南农业大学科学技术师范学院,长沙,410128 3. 湖南农大金农种业有限公司,长沙,410128 |
| 基金项目： | 国家自然科学基金(30900909);;湖南省教育厅优秀青年科研项目(08B033);;湖南省科技计划项目(2009NK3101) |
| 摘 要： | 分别以耐高温、中度敏感与敏感型3个棉花品系为材料,分析了它们在不同发育时期叶片和花药中SOD、POD、CAT保护酶活性和MDA含量的差异及在盛花期高温胁迫下的变化。3个品系间叶片保护酶活性在苗期和盛蕾期几乎相同,在盛花期和结铃盛期耐高温显著高于敏感类型,而耐高温棉花叶片MDA含量自盛蕾期起显著低于敏感类型。花药保护酶活性随生育进程而逐渐增加,耐高温棉花花药SOD和POD活性在花粉粒成熟期才显著高于敏感类型,而CAT活性和MDA含量在整个发育时期均分别显著高于和低于敏感类型材料。盛花期高温胁迫显著地抑制叶片和花药的保护酶活性,导致MDA含量极显著地增加,但耐高温棉花叶片和花药保护酶活性的降低和MDA含量的增加幅度明显少于敏感类型。 |
| 关 键 词： | 棉花 耐高温性 SOD POD CAT MDA |
| 收稿时间： | 2009-10-10; |
Differences in SOD, POD, CAT Activities and MDA Content and their Responses to High Temperature Stress at Peak Flowering Stage in Cotton Lines with Different Tolerance to High Temperature |
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| DENG Jiang-ming,XIONG Ge-sheng,YUAN Xiao-ling,JIA Fei,LIU Zhi.Differences in SOD, POD, CAT Activities and MDA Content and their Responses to High Temperature Stress at Peak Flowering Stage in Cotton Lines with Different Tolerance to High Temperature[J].Cotton Science,2010,22(3):242-247. | |
| Authors: | DENG Jiang-ming XIONG Ge-sheng YUAN Xiao-ling JIA Fei LIU Zhi |
| Institution: | 1.College of Bioscience and Biotechnology/a>;Hunan Agricultural University/a>;Changsha/a>;Hunan 410128/a>;China/a>;2.Normal Col-lege of Science and Technology/a>;3.Hunan Jin-nong Seed Co Ltd./a>;China |
| Abstract: | Activities of SOD,POD,CAT protective enzymes and MDA content in main-stem leaf and anther at different develop-mental stages and their responses to high temperature stress at peak flowering stage were analyzed comparatively using three cotton lines exhibiting tolerance,moderate sensitivity and sensitivity to high temperature in the present paper.The protective en-zyme activities in main-stem leaves were nearly same among the three cotton lines at seedling and peak squaring stages,but sig-nificantly higher i... |
| Keywords: | cotton high temperature tolerance SOD POD CAT MDA |
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