| 旱作水稻内源激素变化及其与水稻形态和生理特性的关系 |
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| 引用本文： | 范晓荣,沈其荣,崔国贤,徐国华.旱作水稻内源激素变化及其与水稻形态和生理特性的关系[J].土壤学报,2002,39(2):206-213. |
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| 作者姓名： | 范晓荣 沈其荣 崔国贤 徐国华 |
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| 作者单位： | 南京农业大学资环学院、农业部作物生长调控重点开放实验室,南京,210095 |
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| 基金项目： | 国家自然科学基金资助项目(编号:39970449和30070446) |
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| 摘 要： | 以杂交稻籼优 63(Sy63) ,常规稻武育粳 (Wyj) ,旱稻 85 - 1 5 ( 85 - 1 5 )为材料 ,分别研究了旱作处理与水作处理的水稻体内脱落酸 (ABA) ,生长素 (IAA) ,赤霉素 (GAs)和细胞分裂素 (CTKs)在全生育期内的变化规律 ,初步探究了激素变化与旱作水稻形态及生理适应性的关系。旱作条件下水稻根叶的ABA都显著增加且各品种均呈现一定的规律性 ;旱作水稻的根叶中GAs规律与其ABA的变化规律相似。旱作水稻叶中IAA苗期增加而根先减少后增加 ,后期IAA逐步减低 ;苗期旱作水稻叶中CTKs增加而根减少 ,后期差异不大。实验结果表明旱作条件下的气孔行为可能由ABA和IAA共同调控 ;旱作的侧根发达可能是因为根系中IAA增加及CTKs降低导致的
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| 关 键 词： | 旱作水稻 内源激素 形态 生理生化指标 |
| 收稿时间： | 2000/11/14 0:00:00 |
| 修稿时间： | 2000年11月14 |
EFFECT OF SOIL WATER REGIME ON DYNAMIC LEVELS OF ENDOGENOUS HORMONES AND RELATIONSHIP BETWEEN HORMONES ANDPHYSIO-BIOCHEMISTRY AND MORPHOLOGY OF RICE OF DIFFERENT CULTIVARS CULTIVATED IN UPLAND SOIL |
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| Fan Xiao-rong,Shen Qi-rong,Cui Guo-xian and Xu Guo-hua.EFFECT OF SOIL WATER REGIME ON DYNAMIC LEVELS OF ENDOGENOUS HORMONES AND RELATIONSHIP BETWEEN HORMONES ANDPHYSIO-BIOCHEMISTRY AND MORPHOLOGY OF RICE OF DIFFERENT CULTIVARS CULTIVATED IN UPLAND SOIL[J].Acta Pedologica Sinica,2002,39(2):206-213. |
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| Authors: | Fan Xiao-rong Shen Qi-rong Cui Guo-xian and Xu Guo-hua |
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| Institution: | College of Resoures and Environmental Sciences and MOA Key Lab of Plant Growth Regulation, Nanjing Agricultural University, Nanjing 210095, China;College of Resoures and Environmental Sciences and MOA Key Lab of Plant Growth Regulation, Nanjing Agricultural University, Nanjing 210095, China;College of Resoures and Environmental Sciences and MOA Key Lab of Plant Growth Regulation, Nanjing Agricultural University, Nanjing 210095, China;College of Resoures and Environmental Sciences and MOA Key Lab of Plant Growth Regulation, Nanjing Agricultural University, Nanjing 210095, China |
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| Abstract: | Investigations were made of dynamic change in phytohormones, including abscisic acid (ABA), indole-3-acetic acid (IAA), gibberellins (GAs) and cytokinis (CTKs) and their effects on the physio-biochemistry in and morphology of rice of three different cultivars, i.e .,"Shanyou63" (Sy63), "Wuyujing"(Wyj) and upland rice "85-15" (85-15) grown in upland soil. The content of ABA increased as compared with that in the CK (waterlogged) and the dynamic change in ABA in rice of different cultivars followed some rules. And the dynamic change in GAs was similar to that in ABA. IAA decreased in roots and increased in leaves at the beginning of the stress period. The change in CTKs content was similar to that in IAA. The results suggested that on the upland soil the action of stoma of rice was controlled by IAA as well as ABA and the development of lateral roots was related to the increase in endogenous IAA and the decrease in endogenous CTKs in root. |
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| Keywords: | Rice grown in upland soil Endogenous hormones Morphology Physio- biochemistry |
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