| 菠菜叶片中硝态氮还原与叶柄中硝态氮累积的关系 |
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| 引用本文： | 刘忠,王朝辉,陈宝明,李生秀.菠菜叶片中硝态氮还原与叶柄中硝态氮累积的关系[J].植物生理学通讯,2004,40(3):281-284. |
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| 作者姓名： | 刘忠 王朝辉 陈宝明 李生秀 |
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| 作者单位： | 西北农林科技大学资源环境学院,杨凌,712100 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金 |
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| 摘 要： | 测定了不同生长期在不同施氮水平下3个菠菜品种各器官的硝态氮含量、叶片的硝酸还原酶活性、叶片细胞硝态氮的贮存库和代谢库大小.结果表明:叶柄中硝态氮含量远高于其它器官,其含量与叶片内源/外源硝酸还原酶活性的比值呈负相关;叶片细胞中硝态氮代谢库的大小与叶柄中硝态氮含量之间没有确定的关系.
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| 关 键 词： | 叶柄 硝态氮 硝酸还原酶活性 硝态氮代谢库 |
| 修稿时间： | 2003年7月31日 |
Relationship Between Nitric Nitrogen Reduction in Leaf and Its Accumulation in Petiole of Spinach |
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| LIU Zhong,WANG Zhao-Hui,CHEN Bao-Ming,LI Sheng-XiuCollege of Resources and Environment Science,Northwestern Science and Technology University of Agriculture and Forestry,Yangling.Relationship Between Nitric Nitrogen Reduction in Leaf and Its Accumulation in Petiole of Spinach[J].Plant Physiology Communications,2004,40(3):281-284. |
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| Authors: | LIU Zhong WANG Zhao-Hui CHEN Bao-Ming LI Sheng-XiuCollege of Resources and Environment Science Northwestern Science and Technology University of Agriculture and Forestry Yangling |
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| Institution: | LIU Zhong,WANG Zhao-Hui*,CHEN Bao-Ming,LI Sheng-XiuCollege of Resources and Environment Science,Northwestern Science and Technology University of Agriculture and Forestry,Yangling 712100 |
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| Abstract: | The results showed that nitrate concentration in petiole is much higher than that in the other organs,nitrate concentration of petiole was negatively correlated with the ratio of in vivo nitrate reductase activity(NRA) to in vitro NRA in blade, and the nitrate metabolic pool size (MPS) in blade cell showed no certainrelationship with nitrate concentration in petiole. |
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| Keywords: | petiole nitrate nitrate reductase activity nitrate metabolic pool |
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