| 外源甜菜碱对葡萄幼苗抗高温胁迫能力的影响 |
| |
| 引用本文： | 孟凤,郁松林,郑强卿,刘冬冬,李鹏程,何娟.外源甜菜碱对葡萄幼苗抗高温胁迫能力的影响[J].果树学报,2008,25(4). |
| |
| 作者姓名： | 孟凤 郁松林 郑强卿 刘冬冬 李鹏程 何娟 |
| |
| 作者单位： | 1. 石河子大学农学院园艺系,新疆石河子,832003
2. 石河子121团26连,新疆石河子,832062 |
| |
| 摘 要： | 以1a生酿酒葡萄品种赤霞珠扦插苗为试材,研究了不同浓度的外源甜菜碱(GB)对提高葡萄幼苗抗热性的影响。结果表明,在高温胁迫下,叶面喷施不同浓度的GB均能显著降低葡萄幼苗叶片脯氨酸的含量和丙二醛(MDA)含量,维持较低的膜透性,提高葡萄幼苗叶片可溶性蛋白和抗坏血酸(AsA)含量,从而提高了葡萄幼苗的抗高温胁迫能力。证明GB对减轻高温胁迫引起的伤害,提高葡萄幼苗的抗热能力具有积极的作用。在所设4种GB浓度中以5.0mmol/L处理效果为佳。
|
| 关 键 词： | 葡萄幼苗 外源甜菜碱 高温胁迫 高温抗性 |
Effects of exogenous glycine betaine on the heat resistance of young grape plants |
| |
| MENG Feng,YU Song-lin,ZHENG Qiang-qing,LIU Dong-dong,LI Peng-cheng,HE Juan.Effects of exogenous glycine betaine on the heat resistance of young grape plants[J].Journal of Fruit Science,2008,25(4). |
| |
| Authors: | MENG Feng YU Song-lin ZHENG Qiang-qing LIU Dong-dong LI Peng-cheng HE Juan |
| |
| Abstract: | Effects of different concentrations of exogenous glycine betaine (GB) on the heat resistance of one-year-old grape plants were studied. The results showed that the exogenous GB treatment could significantly decrease the contents of free proline and MDA and maintain lower levels of membrane permeability under heat stress, and increase the contents of soluble protein and AsA. Therefore the heat resistance of the young grape plants was enhanced. These results have proved that GB has constructive effects in decreasing the injury caused by high temperature stress and increasing the heat resistance of the young grape plants. And among the 4 GB concentrations in this experiment, 5.0 mmol/L was the best. |
| |
| Keywords: | Young grape plants Exogenous glycine betaine Heat stress Heat resistance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
