文献类型： 外文期刊

作者： Zhao, H. H. ¹ ; Zheng, D. F. ¹ ; Feng, N. J. ¹ ; Wang, S. Q. ¹ ; Guo, T. ² ; Liang, X. L. ¹ ; Shan, Y. ⁵ ; Wang, X. X. ¹ ; Ding, K. X. ⁵ ; Li, Z. J. ² ; Yang, H. ² ; Xiang, H. T. ⁶ ; Xu, L. ¹ ; Zhao, J. J. ⁷ ; Gu, X. ⁸ ; Xu, J. F. ² ; Zhao, X. Q. ² ; Zhang, M. M. ² ; Yao, L. L. ² ; Wang, Q. S. ² ;

作者机构： 1.Heilongjiang Bayi Agr Univ, Coll Agr, Daqing 163319, Peoples R China

2.Heilongjiang Acad Agr Sci, Jiamusi Branch, Jiamusi 154007, Peoples R China

3.Guangdong Ocean Univ, Coll Coastal Agr Sci, Zhanjiang 524088, Peoples R China

4.Guangdong Ocean Univ, Shenzhen Res Inst, Shenzhen 518108, Peoples R China

5.Heilongjiang Acad Agr Sci, Keshan Branch, Qiqihar 161606, Peoples R China

6.Heilongjiang Acad Agr Sci, Inst Crop Cultivat, Harbin 150086, Peoples R China

7.Chongqing Three Gorges Univ, Coll Food & Biol Engn, Chongqing 404120, Peoples R China

8.Wuhu Inst Technol, Wuhu 241003, Peoples R China

关键词： Glycine max; Vigna radiata; soybean; mungbean; low-temperature stress; uniconazole S3307; physiological characteristics

期刊名称：RUSSIAN JOURNAL OF PLANT PHYSIOLOGY （ 影响因子：1.419； 五年影响因子：1.636 ）

ISSN： 1021-4437

年卷期： 2022 年 69 卷 6 期

页码：

收录情况： SCI

摘要： Low-temperature stress is a destructive abiotic stress that limits the production and quality of tropical and subtropical crops. In this study, we investigated the physiological responses of the soybean (Glycine max (L.) Merr. variety 'Kenfeng 16' and the mungbean (Vigna radiata (L.) R.Wilczek) variety 'Lvfeng 2' to exogenous uniconazole S3307 and low-temperature stress at the initial flowering (R1) stage. Uniconazole S3307 increased the photosynthetic parameters [net photosynthetic rate (P-n), transpiration rate (T-r), stomatal conductance (G(s)), and intercellular CO2 concentration (C-i)], sucrose phosphate synthetase (SPS) activity, and the contents of sucrose (SUC) and starch (STA) in 'Kenfeng 16' and 'Lvfeng 2' under low-temperature stress; but it decreased the activities of acid invertase (AI), neutral invertase (NI), total invertase (IN) as well as the contents of glucose and fructose. Additionally, sucrose synthase (SS) activity was increased in 'Kenfeng 16' but decreased in 'Lvfeng 2' with uniconazole S3307 treatment. The observed changes of P-n, SUC, and STA in 'Kenfeng 16'; the AI and IN activities in 'Lvfeng 2'; and the glucose and fructose contents in both varieties were quickly recovered after they were subjected to the 4-day recovery period. Compared with the controls, the yield and yield components of 'Lvfeng 2' were significantly (P <= 0.05) higher on day 1 (D1), D2, and D3 of the cold-stress conditions, respectively. The yield per plant was positively correlated with the number of grains per plant, number of pods per plant, G(s,) SUC, and STA in 'Lvfeng 2' and 'Kenfeng 16'. S3307 enhanced the G(s) and the accumulation of SUC and STA, but it decreased the NI activity, glucose content, and fructose content, thereby alleviating cold stress to increase the yield.