| 植物抗脱水胁迫的分子机制 |
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| 引用本文： | 熊清,王伯初,段传人.植物抗脱水胁迫的分子机制[J].生物化学与生物物理进展,2000,27(3):247-250. |
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| 作者姓名： | 熊清 王伯初 段传人 |
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| 作者单位： | 重庆大学生物工程学院,重庆,400044 |
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| 摘 要： | 主要介绍植物在脱水胁迫下，逆激基因产物的功能和胁迫信号的转导过程.逆激基因产物的功能可分为两类：一类起“保护”作用，另一类起“调节”作用.在脱水胁迫起始信号和基因表达之间至少存在四条信号转导通路，两条依赖脱落酸(ABA)，两条不依赖ABA，依赖ABA的途径中有1条必须有蛋白质合成.不依赖ABA的途径中有1条与低温胁迫应答有共同的信号转导通路.
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| 关 键 词： | 干旱，盐渍，低温，脱水，信号转导，基因表达 |
| 收稿时间： | 1999/4/28 0:00:00 |
| 修稿时间： | : |
Molecular Mechanism of Water-Stress Response in Plant |
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| XIONG Qing,WANG Bo-Chu and DUAN Chuan-Ren.Molecular Mechanism of Water-Stress Response in Plant[J].Progress In Biochemistry and Biophysics,2000,27(3):247-250. |
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| Authors: | XIONG Qing WANG Bo-Chu and DUAN Chuan-Ren |
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| Institution: | Bioengineering College,Chongqing University,Chongqing 400044, China;Bioengineering College,Chongqing University,Chongqing 400044, China;Bioengineering College,Chongqing University,Chongqing 400044, China |
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| Abstract: | The function of water-stress-inducible gene products and signal transduction in water-stress response was mainly introduced. Genes induced during water-stress conditions are thought to function not only in protecting cells from water deficit but also in the regulation of genes for signal transduction in water-stress response.At least four independent signal transduction pathways exist between the initial dehydration signal and gene expression,two are ABA independent and two are ABA dependent,one of the ABA-dependent pathways requires protein biosynthesis,one of the ABA-independent pathways overlaps with that of the cold response. |
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| Keywords: | drought high salinity low temperature dehydration signal transduction gene expression |
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