| 解梦洁,贺烽,张丽萍,金竹萍,刘旦梅,裴雁曦.H2S和NO在大白菜抵抗高温胁迫中的作用[J].农业环境科学学报,2018,37(6):1079-1085. |
| H2S和NO在大白菜抵抗高温胁迫中的作用 |
| Effects of H2S and NO on resistance to high temperature stress in Chinese cabbage |
| 投稿时间：2017-10-17 |
| DOI：10.11654/jaes.2017-1403 |
| 中文关键词: 硫化氢 一氧化氮 高温胁迫 大白菜 |
| 英文关键词: hydrogen sulfide nitric oxide high temperature stress Brassica rapa Pekinensis |
| 基金项目:国家自然科学基金面上项目（31672140）；山西省青年基金项目（2016021097）；山西省回国留学项目（2016-008） |
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| 摘要点击次数: 2214 |
| 全文下载次数: 2793 |
| 中文摘要: |
| 结合药理学和植物生理生化的方法，通过外源施加供体或清除剂，并观察幼苗生长的变化，意在研究H2S和NO两种气体信号分子在大白菜抵抗高温胁迫中的生理作用及相互影响。实验结果表明：高温胁迫明显抑制大白菜幼苗的生长，导致植株叶片明显萎蔫卷曲。胁迫条件下，植株可溶性糖、可溶性蛋白、脯氨酸含量以及相对电导率均显著升高，内源H2S和NO含量明显上升，外源生理浓度H2S和NO处理可明显缓解高温胁迫对幼苗生长的影响，并且两种信号分子存在相互作用，外源H2S缓解内源NO含量的上升，而外源NO对内源H2S含量变化并没有显著影响。综上，气体信号分子H2S和NO交叉互作参与大白菜抵御高温胁迫。 |
| 英文摘要: |
| We discussed their interactions and physiological effects on the resistance to high temperature stress in Chinese cabbage using pharmacological and plant biochemical methods. It was found that high temperature stress significantly inhibited the growth of Chinese cabbage seedlings and led to wilting and obvious curling of leaves. The content of soluble sugar, soluble protein, and proline, and endogenous H2S and NO, as well as the relative conductivity, increased considerably under high temperature stress. Physiological concentrations of exogenous H2S and NO could notably mitigate the inhibition of high temperature stress on seedling growth; a strong interaction between H2S and NO was found. Exogenous H2S can alleviate the formation of endogenous NO, but not vice versa. Overall, H2S and NO together enhance the response of cabbage to high temperature stress. |
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