Effects of salt stress on sucrose metabolism and growth in Chinese rose (Rosa chinensis)

文献类型： 外文期刊

第一作者： Li, Caihua

作者： Li, Caihua;Li, Yuhuan;Wei, Zunmiao;Cheng, Yan;Liu, Xianxian;Li, Yan-jun;Zheng, Yi;Mu, Zhongsheng;Chu, Peiyu;Hao-hao, Zhao;Zhao, Fengzhou;Zhang, Zhiwen;Mu, Zhongsheng

作者机构：

关键词： Chinese rose; photosynthesis; physiology; salt stress; sucrose metabolism

期刊名称：BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT （ 影响因子：1.762； 五年影响因子：2.116 ）

ISSN： 1310-2818

年卷期： 2022 年 36 卷 1 期

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收录情况： SCI

摘要： Salt stress is a major abiotic stress with detrimental effects on plants. Sucrose, the main product of photosynthesis in plants, is used as a source of energy for the development of Chinese rose (Rosa chinensis). Hua Xianzi, a variety of Chinese rose, was investigated in this study. Phenotypic traits such as digital biomass, greenness average, leaf angle and leaf area, as well as physiological characters such as proline (Pro), malondialdehyde (MDA), H2O2, O-2 (-) and antioxidant enzymes such as SOD (Superoxide Dismutase), POD (Peroxidase), CAT (Catalase) and APX (Ascorbate Peroxidase), changed significantly in response to salt stress (150 mmol/L NaCl for 72 h). The physiological changes were examined based on photosynthetic and fluorescence indicators. Salt stress increased the concentration of glucose, fructose and sucrose, upregulated the expression of Rc-SS1, Rc-SS2, Rc-SPS1, Rc-SPS2, Rc-alpha A1, Rc-alpha A2, Rc-alpha A3, Rc-beta A1 and Rc-beta A3 genes. Finally, it decreased the starch content in leaves. This study revealed that salt stress disrupted the equilibrium of sucrose metabolism in leaves. This finding provides the basis for further research into the mechanism of salt tolerance adaption.

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