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| Effects of H2S and NO on resistance to high temperature stress in Chinese cabbage |
| Received:October 17, 2017 |
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| KeyWord:hydrogen sulfide;nitric oxide;high temperature stress;Brassica rapa Pekinensis |
| Author Name | Affiliation | E-mail | | XIE Meng-jie | College of Life Science, Shanxi University, Taiyuan 030006, China | | | HE Feng | College of Life Science, Shanxi University, Taiyuan 030006, China | | | ZHANG Li-ping | College of Life Science, Shanxi University, Taiyuan 030006, China | | | JIN Zhu-ping | College of Life Science, Shanxi University, Taiyuan 030006, China | | | LIU Dan-mei | College of Life Science, Shanxi University, Taiyuan 030006, China | | | PEI Yan-xi | College of Life Science, Shanxi University, Taiyuan 030006, China | peiyanxi@sxu.edu.cn |
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| Abstract: |
| 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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