| 低钾胁迫对玉米体内N、P、K、转化酶及可溶性糖分配的影响 |
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| 引用本文： | 田晓艳,刘延吉,曹敏建. 低钾胁迫对玉米体内N、P、K、转化酶及可溶性糖分配的影响[J]. 玉米科学, 2008, 16(5): 80-82 |
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| 作者姓名： | 田晓艳 刘延吉 曹敏建 |
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| 作者单位： | 1. 辽宁石油化工大学环境与生物工程学院,辽宁,抚顺,113001
2. 沈阳农业大学生物科学技术学院,沈阳,110161 |
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| 基金项目： | 国家重点基础研究发展计划(G1999011707) |
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| 摘 要： | The article studied the distribution of N,P,K,invertase and soluble sugar in maize under low potassium stress,so that can discover relative mechanism of low potassium stress tolerance.Two inbred lines of maize seed,A which sensitive to K+ deficiency and B which tolerant to K+ deficiency were cultured in nutrient solutions of three different K+ concentration(5,100,1 000 μmol/L).After 4 weeks,the maize seedling had been cultured,the plants were transplanted into culture barrel and then cultured for 50 days.Assay the content of N,P,K and invertase,soluble sugar.Results showed that under low K+ concentration,the content of N and K of B increased significantly while the content of P decreased significantly,and the content of soluble sugar of B increased.The invertase activity is positive correlative with the content soluble sugar,and it ascended by companying with the increasing of potassium concentration.The results indicated that B improved its low potassium stress tolerance through increasing the content of N,K and soluble sugar and the invertase activity.
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| 关 键 词： | 低钾胁迫 玉米自交系 K 转化酶 可溶性糖 |
| 收稿时间： | 2008-01-10 |
The Distribution of N,P,K Invertase and Soluble Sugar in Maize Under Low Potassium Stress |
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| TIAN Xiao-yan;LIU Yan-ji;CAO Min-jian. The Distribution of N,P,K Invertase and Soluble Sugar in Maize Under Low Potassium Stress[J]. Journal of Maize Sciences, 2008, 16(5): 80-82 |
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| Authors: | TIAN Xiao-yan LIU Yan-ji CAO Min-jian |
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| Abstract: | |
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| Keywords: | Low potassium stress Maize inbred lines K Invertase Soluble sugar |
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