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| 生长调节剂对春玉米氮素代谢关键酶活性的影响 | |
| 引用本文： | 于方明,刘可慧,荣湘民,刘强,朱红梅,彭建伟,谢桂先.生长调节剂对春玉米氮素代谢关键酶活性的影响[J].生态环境,2007,16(4):1253-1256. |
| 作者姓名： | 于方明 刘可慧 荣湘民 刘强 朱红梅 彭建伟 谢桂先 |
| 作者单位： | 1. 湖南农业大学资源环境学院,湖南,长沙,410128;广西师范大学环境与资源学院,广西,桂林,541004 2. 桂林电子科技大学应用科技学院,广西,桂林,541004 3. 湖南农业大学资源环境学院,湖南,长沙,410128 |
| 基金项目： | 国家科技攻关计划;教育部科学技术研究重点项目;湖南省教育厅青年基金;广西师范大学校科研和教改项目 |
| 摘 要： | 采用大田小区试验,通过新型植物生长调节剂处理春玉米,研究了生长调节剂对玉米氮素代谢关键酶活性的影响,结果表明,喷施不同配方的生长调节剂能明显提高春玉米氮代谢过程中关键酶的活性。在生长调节剂PGR2处理下,玉米功能叶片中硝酸还原酶(NR)活性比对照提高了109.3%～138.3%,其它处理下硝酸还原酶活性也有不同程度的提高;无论在玉米功能叶片还是籽粒中,谷氨酰胺合成酶(GS)和谷氨酰胺转化酶活性在测定的各时期均高于对照;功能叶片中蛋白水解酶活性也均高于对照。在所有处理中,以PGR2处理效果最佳。 |
| 关 键 词： | 生长调节剂 玉米 氮代谢 关键酶 |
| 文章编号： | 1672-2175（2007）04-1253-04 |
| 收稿时间： | 2007-07-05 |
| 修稿时间： | 2007-07-05 |
Effects of new plant regulators on key enzymes of nitrogen metabolism in spring maize |
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| YU Fangming,LIU Kehui,RONG Xiangmin,LIU Qiang,ZHU Hongmei,PENG Jianwei,XIE Guixian.Effects of new plant regulators on key enzymes of nitrogen metabolism in spring maize[J].Ecology and Environmnet,2007,16(4):1253-1256. | |
| Authors: | YU Fangming LIU Kehui RONG Xiangmin LIU Qiang ZHU Hongmei PENG Jianwei XIE Guixian |
| Institution: | 1. College of Resource and Environment,Hunan Agricultural University,Changsha 410128,China;2. College of Resource and Environment,Guangxi Normal University,Guilin 541004,China; 3. College of Applied Science and Technology,Guiling University of Electroic Technology,Guilin 541004,China |
| Abstract: | The field experiment was concerned on one new plant growth regulators (PGR,the main materia was N-carboxymethylchitosan,NCMC) on key enzymes of nitrogen metabolism in spring maize. The results showed that all the tested PGRs had significantly positive effects on promotion to the activities of nitrate reductase and protease in the functional leaves. The acticity of GS synthetase and GS transferase in both of the functional leaves and grains were also promoted and the optimal formula was PGR2. |
| Keywords: | maize plant growth regulator nitrogen metabolism key enzyme |
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