| 水分胁迫对玉米幼苗氮素代谢的影响 |
| |
| 引用本文： | 王晓琴,袁继超,柯永培,熊庆娥.水分胁迫对玉米幼苗氮素代谢的影响[J].四川农业大学学报,2004,22(1):23-25. |
| |
| 作者姓名： | 王晓琴 袁继超 柯永培 熊庆娥 |
| |
| 作者单位： | 1. 四川农业大学,农学院,四川,雅安,625014;首都师范大学,生物系,北京,100037
2. 四川农业大学,农学院,四川,雅安,625014 |
| |
| 基金项目： | 四川省教育厅重点科技项目资助 |
| |
| 摘 要： | 以 3种抗旱性不同的品种为材料研究了水分胁迫对玉米幼苗氮代谢的影响 ,结果表明 :在水分胁迫下 ,玉米叶片可溶性蛋白含量和硝酸还原酶活性逐渐下降 ,正在生长中的新叶比已停止生长的老叶下降幅度更大 ;在短期水分胁迫下 ,根系中可溶性蛋白及硝酸还原酶活性略有升高 ,随着胁迫时间的进一步延长而急剧下降。抗旱性弱的品种可溶性蛋白含量和硝酸还原酶活性在水分胁迫下下降的幅度较抗旱性强的品种大
|
| 关 键 词： | 水分胁迫 玉米幼苗 硝酸还原酶 可溶性蛋白 |
| 文章编号： | 1000-2650(2004)01-0023-03 |
| 修稿时间： | 2003年12月25 |
Effect of Water-stress on Nitrogen Metabolism of Maize Seedling |
| |
| WANG Xiao-qin.Effect of Water-stress on Nitrogen Metabolism of Maize Seedling[J].Journal of Sichuan Agricultural University,2004,22(1):23-25. |
| |
| Authors: | WANG Xiao-qin |
| |
| Abstract: | The effects of water-stress on the nitrogen metabolism of maize seedling were studied with different drought-resistance varieties in this paper. The results are as follows: the soluble protein content and nitrate reductase activity in the leaves of maize seedling decline under water-stress. The declining degree in growing leaves is bigger than that in old leaves. The soluble protein content and nitrate reductase activity in roots of maize seedling increase a little after a short water stress, but they decline rapidly when further water-stress continues. The declining degree of soluble protein content and nitrate reductase activity in maize seedling of low drought-resistance variety is larger than that of high drought-resistance variety. |
| |
| Keywords: | water-stress maize seedling nitrate reductase soluble protein |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
