| 萘二甲酸酐减轻胺苯磺隆对水稻药害的作用机制 |
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| 引用本文： | 路凯,钱传范. 萘二甲酸酐减轻胺苯磺隆对水稻药害的作用机制[J]. 植物保护学报, 2000, 27(3): 268-272 |
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| 作者姓名： | 路凯 钱传范 |
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| 作者单位： | [1]中国预防医学科学院环境卫生监测所，北京100021 [2]中国农业大学应用化学系，北京100094 |
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| 摘 要： | 通过在离体和活体条件下萘二甲酸酐（NA）对水稻乙酰乳酸合成酶（ALS）活力的影响，进行NA减轻胺苯磺隆对水稻药害作用机制研究。离体条件下，NA对水稻幼苗ALS的活力影响很小，且未能产奋勇安苯磺隆对ALS活性的抑制作用。活体条件下，NA提高幼苗ALS活力达40％，且抵消胺苯磺隆对ALS活力的抑制作用，说明NA减轻胺苯磺隆对水稻药害的作用机制是NA间接激活靶标酶ALS。
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| 关 键 词： | 水稻 胺苯磺隆 萘二甲酸酐 药害 除草剂残留 |
STUDIES ON THE MECHANISM OF ACTION OF 1, 8-NAPHTHALIC ANHYDRIDE (NA) PROTECTING RICE FROM THE PHYTOTOXICITY OF ETHAMETSULFURON |
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| LuKai and Qian Chuanfan. STUDIES ON THE MECHANISM OF ACTION OF 1, 8-NAPHTHALIC ANHYDRIDE (NA) PROTECTING RICE FROM THE PHYTOTOXICITY OF ETHAMETSULFURON[J]. Acta Phytophylacica Sinica, 2000, 27(3): 268-272 |
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| Authors: | LuKai and Qian Chuanfan |
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| Affiliation: | Institute of Environmental health Monitoring, Chinese Academy of Preventive Medicine, Beijing 100021 and Department of Applied Chemistry, China Agricultural University, Beijing 100094 |
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| Abstract: | The mechanism of NA reducing the phytotoxicity of ethametsulfuron to rice was studied through the experiments on the influence of NA to rice ALS activity In vitro and In vivo . The results showed that In vitro NA had almost no effect on the activity of acetolactate synthase ( ALS) . NA could not reduce the inhibition of ethametsulfuron to ALS. In vivo NA could enhance the activity of ALS a large degree(40%) . NA could counteract the inhibition of ethametsulfuron to ALS. It indicated that the mechanism of NA reducing the pytotoxicity of ethametsulfuron to rice was not direct but indirect action on the target enzyme. |
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| Keywords: | rice ethametsulfuron acetolactate synthase ( ALS ) 1 8-naphthalic anhydride (NA) |
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