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首页> 外文期刊>Journal of Agronomy and Crop Science/Zeitschrift fur acker-und pflanzenbau >Differential Physio-Biochemical Responses to Cold Stress of Cold-Tolerant and Non-Tolerant Grapes (Vitis L.) from China
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Differential Physio-Biochemical Responses to Cold Stress of Cold-Tolerant and Non-Tolerant Grapes (Vitis L.) from China

机译：中国耐寒和不耐寒葡萄对冷胁迫的差异生理生化响应

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摘要

There are many grape species exhibiting differences in cold tolerance in China. 'Zuoshan1' (Vitis amurensis Rupr. cv. Zuoshan1), one kind of the most cold tolerant grapes, can endure -40 to -50 degrees C, whereas, 'Maoputao' (Vitis quinqanguoari Rehd. cv. Maoputao) is sensitive to the cold stress. To understand the physiological mechanism, we investigated responses of both species to a range of decreasing temperatures under the controlled condition. The cold-tolerant 'Zuoshan1' showed higher accumulation of abscisic acid than non-tolerant 'Maoputao', which was correlated with a more dramatic increase in solutes including sugars, proteins at early stage of our detection. At latter stages, these solutes showed more decline in 'Zuoshan1'. Meanwhile, earlier leaf yellowing and necrosis of 'Zuoshan1' were detected with concomitant decrease in the chlorophyll (Chl) content along with remarkable increase in electrolyte leakage and malondialdehyde, which indicated that the earlier leaf senescence occurred to 'Zuoshan1'. Based on the leaf morphology and parameter investigation, it was concluded that cold-tolerant grape 'Zuoshan1' made quicker responses to the low temperature (LT), indicating it sensed the cold-signal more strongly than the non-tolerant grape 'Maoputao'. Therefore the ability to take more active response to cold stress contributes to the higher tolerance in 'Zuoshan1'.
机译：中国有许多葡萄品种表现出不同的耐寒性。耐寒性最强的一种葡萄'Zuoshan1'（Vitis amurensis Rupr。cv。Zuoshan1）可以承受-40至-50摄氏度的温度，而'Maoputao'（Vitis quinqanguoari Rehd。cv。Maoputao）对这种植物敏感冷压力。为了了解生理机制，我们研究了两种物种在受控条件下对温度下降范围的响应。耐寒的“ Zoshan1”比不耐寒的“ Maoputao”显示出更高的脱落酸积累，这与我们检测早期糖，蛋白质等溶质的急剧增加有关。在后期，这些溶质在“左山1号”中显示出更多的下降。同时，发现“左山1号”较早的叶片变黄和坏死，同时叶绿素（Chl）含量降低，同时电解质泄漏和丙二醛含量显着增加，这表明“左山1号”出现较早的叶片衰老。根据叶片的形态和参数研究，可以得出结论，耐寒葡萄“左山1”对低温（LT）的反应更快，这表明它比不耐寒葡萄“ Maoputao”对冷信号的感知更为强烈。因此，对冷胁迫做出更积极反应的能力有助于'Zuoshan1'的较高耐受性。

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