| 植物生长调节剂对水稻分蘖芽生长和内源激素变化的调控效应 |
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| 引用本文： | 刘杨,丁艳锋,王强盛,李刚华,许俊旭,刘正辉,王绍华.植物生长调节剂对水稻分蘖芽生长和内源激素变化的调控效应[J].作物学报,2011,37(4):670-676. |
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| 作者姓名： | 刘杨 丁艳锋 王强盛 李刚华 许俊旭 刘正辉 王绍华 |
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| 作者单位： | 刘杨,丁艳锋,王强盛,李刚华,许俊旭,刘正辉,王绍华* |
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| 基金项目： | 国家自然科学基金项目，江苏省自然科学基金项目，高等学校博士学科点基金项目 |
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| 摘 要： | 以扬稻6号和南粳44为材料，研究了外源ABA、GA3和NAA对水稻分蘖芽生长的影响及其与内源激素的关系。结果表明，外源GA3和NAA可以完全抑制分蘖芽的生长，而外源ABA只是减缓了分蘖芽的生长速率而没有完全抑制其生长。外源GA3和NAA均提高了分蘖节和分蘖芽中ABA含量，抑制了分蘖节和分蘖芽中Z+ZR含量的提高，而且外源GA3还提高了分蘖节中IAA含量，另外，IAA和Z+ZR含量的变化早于ABA含量的变化。分析试验结果表明IAA、ABA和Z+ZR三种内源激素与水稻分蘖芽生长密切相关，IAA和Z+ZR是生长的主要调控因素，而ABA不是，外界因素对分蘖芽生长的调控主要通过调控这3种激素实现。
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| 关 键 词： | 水稻 分蘖芽 生长 激素 |
| 收稿时间： | 2010-08-02 |
Effect of Plant Growth Regulators on the Growth of Rice Tiller Bud and the Changes of Endogenous Hormones |
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| LIU Yang,DING Yan-Feng,WANG Qiang-Sheng,LI Gang-Hua,XU Jun-Xu,LIU Zheng-Hui,WANG Shao-Hua.Effect of Plant Growth Regulators on the Growth of Rice Tiller Bud and the Changes of Endogenous Hormones[J].Acta Agronomica Sinica,2011,37(4):670-676. |
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| Authors: | LIU Yang DING Yan-Feng WANG Qiang-Sheng LI Gang-Hua XU Jun-Xu LIU Zheng-Hui WANG Shao-Hua |
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| Institution: | Agronomy College, Nanjing Agricultural University / Key Laboratory of Crop Physiology & Ecology in Southern China, Ministry of Agriculture, Nanjing 210095, China |
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| Abstract: | Hormones have substantial effect on tiller bud growth of rice. However, little is known on the relation between endogenous hormonal changes and the growth of rice tiller bud induced by exogenous hormones. In present study, two rice cultivars (Yangdao 6 and Nanjing 44) were used to investigate the effect of exogenous ABA, GA3, and NAA on tiller bud outgrowth and the changes of endogenous hormones. The results showed that exogenous GA3 and NAA completely inhibited the tiller bud growth, while applied ABA did ... |
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| Keywords: | Rice Tiller Bud Outgrowth Hormone |
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