| 不同氮素水平对菜用甘薯活性氧代谢的影响 |
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| 引用本文： | 任丽花,余华,黄敏敏,罗土炎,蔡南通,邱永祥.不同氮素水平对菜用甘薯活性氧代谢的影响[J].福建农业科技,2011(2):105-107. |
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| 作者姓名： | 任丽花 余华 黄敏敏 罗土炎 蔡南通 邱永祥 |
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| 作者单位： | 1. 福建省农业科学院中心实验室,350003;福建省精密仪器农业测试重点实验室
2. 福建省农业科学院作物研究所 |
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| 基金项目： | 福建省青年人才项目，国家甘薯产业技术体系 |
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| 摘 要： | 以福薯7-6为材料研究不同氮肥用量对菜用甘薯叶片活性氧代谢的影响.试验结果表明,氮不足或氮过量的情况下,福薯7-6叶片由于SOD活性下降,而且POD活性的提高不能及时清除SOD催化产生的H2O2,O2的积累提高了生物膜的过氧化作用,导致质膜相对透性增加,离子大量外渗,相对电导率增加,这些均导致叶片细胞受到伤害.
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| 关 键 词： | 氮 菜用甘薯 活性氧代谢 |
Effects of different nitrogen levels on active oxygen metabolism of vegetable sweet potato |
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| REN Li-hua,YU Hua,HUANG Min-min,LUO Tu-yan,CAI Nan-tong,QIU Yong-xiang.Effects of different nitrogen levels on active oxygen metabolism of vegetable sweet potato[J].Fujian Agricultural Science and Technology,2011(2):105-107. |
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| Authors: | REN Li-hua YU Hua HUANG Min-min LUO Tu-yan CAI Nan-tong QIU Yong-xiang |
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| Institution: | 1.Central Laboratory,Fujian Academy of Agriculture Sciences,Fuzhou,Fujian 350003,China;2.Key Laboratory of Test in Agricultural Field by Precision Type instrument,Fuzhou,Fujian 350003,China;3.The Crop Institute,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350013,China) |
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| Abstract: | The active oxygen metabolism of vegetable sweet potato under different nitrogen levels were studied.The results showed that,under both nitrogen insufficient and excessive conditions,the leaves of "Fushu7-6" couldn’t remove H2O2 timely owing to the decrease of SOD activity and increase of POD activity.At the same time the accumulation of O-·2 aggravated peroxidation of biomembrane,leading to the increase of membrane permeability and extravasation of ion and increase of relative conductivity.These unhealth metabolisms caused the harm of cells. |
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| Keywords: | nitrogen vegetable sweet potato active oxygen metabolism |
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