| 外源硅及脯氨酸对盐胁迫下马铃薯试管苗的影响 |
| |
| 引用本文： | 王清,黄惠英,张金文,王蒂. 外源硅及脯氨酸对盐胁迫下马铃薯试管苗的影响[J]. 中国蔬菜, 2005, 1(9): 16-18 |
| |
| 作者姓名： | 王清 黄惠英 张金文 王蒂 |
| |
| 作者单位： | 甘肃农业大学生命科学技术学院; 甘肃农业大学农学院 |
| |
| 基金项目： | 国家“863”高科技计划项目(2001AA241132)，甘肃省自然基金项目(3ZS041-A25-047) |
| |
| 摘 要： | 在无菌微生态环境下,对马铃薯试管苗进行盐胁迫和外源硅及脯氨酸处理。结果表明,盐胁迫能够明显降低试管苗苗高、根质量和鲜质量;低盐浓度(0.1%NaCl)能够促进根的伸长,但这种促进作用随NaCl浓度的升高而消失。外源硅能够促进低盐胁迫下试管苗根的生长、鲜质量和根质量的增加,并降低试管苗游离脯氨酸含量。外源脯氨酸对盐胁迫下试管苗的生物产量促进效应低于硅,但却明显提高了试管苗的叶绿素含量。试验证明:外源硅及脯氨酸能够显著缓解盐胁迫对试管苗所造成的伤害。
|
| 关 键 词： | 硅 脯氨酸 盐胁迫 马铃薯试管苗 |
| 收稿时间： | 2005-01-04 |
| 修稿时间： | 2005-01-04 |
Effect of Exogenous Silicon and Proline on Potato Plantlet in Vitro under Salt Stress |
| |
| Wang Qing, Huang Huiying, Zhang Jinwen. Effect of Exogenous Silicon and Proline on Potato Plantlet in Vitro under Salt Stress[J]. China Vegetables, 2005, 1(9): 16-18 |
| |
| Authors: | Wang Qing Huang Huiying Zhang Jinwen |
| |
| Affiliation: | College of Life Science and Technology; Gansu Agricultural University; Lanzhou 730070 |
| |
| Abstract: | Potato plantlets were cultured in MS medium with NaCl (0,0.1 %,0.3 %,0.5 %,0.8 %), adding 1 mmol·L -1 silicon or 100 μg·mL -1 proline. It showed that the height and fresh weight of shoot and the length of root decreased significantly under salt stress. The concentration of 0.1 % NaCl could promote the growth of root while the effect disappeared with NaCl concentration increased. Exogenous silicon not only enhanced the growth and weight of roots and the fresh weight of shoot but also reduced the content of f... |
| |
| Keywords: | Silicon Proline Salt stress Potato plantlet in vitro |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国蔬菜》浏览原始摘要信息 |
|
点击此处可从《中国蔬菜》下载全文 |
