| 植物保卫细胞中ABA、H2O2和NO信号网络研究的进展 |
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| 引用本文： | 李师翁,薛林贵,冯虎元,徐世键,毕玉蓉,安黎哲.植物保卫细胞中ABA、H2O2和NO信号网络研究的进展[J].中国沙漠,2006,26(3):447-453. |
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| 作者姓名： | 李师翁 薛林贵 冯虎元 徐世键 毕玉蓉 安黎哲 |
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| 作者单位： | 1. 兰州交通大学,化学与生物工程学院,甘肃,兰州,730070
2. 兰州大学,生命科学学院,甘肃,兰州,730000 |
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| 基金项目： | 兰州交通大学校科研和教改项目;中国西部环境和生态科研项目;交通部西部交通建设科技项目 |
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| 摘 要： | 植物叶片表面的气孔保卫细胞是研究信号转导的模式实验系统，激光扫描共聚焦显微镜和膜片钳等新研究技术的应用，在植物细胞信号转导的研究上取得了重要进展。干旱胁迫能够促进植物合成ABA，并启动保卫细胞中一系列复杂的信号网络使气孔关闭。最近的研究表明，H2O2和NO 是ABA 诱导的气孔关闭信号网络中的关键分子，Ca2+、蛋白激酶、cADPR和cGMP等是H2O2和NO信号途径中的下游分子， 这些信号分子可能形成一个复杂的信号网络，但对它们之间的准确的关系仍然未知。
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| 关 键 词： | 保卫细胞 ABA H2O2 NO 信号网络 |
| 文章编号： | 1000-694X（2006）03-0447-07 |
| 收稿时间： | 2005-01-19 |
| 修稿时间： | 2005-04-07 |
Progress on Studies of ABA, Hydrogen Peroxide and Nitric Oxide Signal Network in Plant Stomatal Guard Cells |
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| LI Shi-weng,XUE Lin-gui,FENG Hu-yuan,XU Shi-jian,BI Yu-rong,AN Li-zhe.Progress on Studies of ABA, Hydrogen Peroxide and Nitric Oxide Signal Network in Plant Stomatal Guard Cells[J].Journal of Desert Research,2006,26(3):447-453. |
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| Authors: | LI Shi-weng XUE Lin-gui FENG Hu-yuan XU Shi-jian BI Yu-rong AN Li-zhe |
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| Institution: | 1 .School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzou 730070, China; 2.School of Life Science, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | Plant growth and development are largely affected by the availability of water.ABA is an endogenous anti-transpirant that reduces water loss through controlling stomatal pores on the leaf surface.Enhanced biosynthesis of ABA occurs in response to water deficit stress initiates an intricate network of signaling pathways in guard cells leading to stomatal closure.Recently,hydrogen peroxide(H_(2)O_(2)) and nitric oxide(NO) have been identified as key molecules regulating ABA induced stomatal closure.Some signaling components positioned downstream of H_(2)O_(2) and NO are calcium,protein kinases,cADPR and cGMP.Although it may be thought that all signaling components form a signal network in guard cells,the exact interaction between the various signaling components remains unknown. |
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| Keywords: | ABA H2O2 NO |
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