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Abscisic acid modulates differential physiological and biochemical responses to cadmium stress in Brassica napus

文献类型： 外文期刊

作者： Liao, Yiqun 1 ; Tang, Ying 1 ; Wang, Shiwei 1 ; Su, Huiling 1 ; Chen, Jing 1 ; Zhang, Dawei 1 ; Wu, Jinfeng 1 ; Zhou, Dinggang 1 ; Yan, Mingli 1 ; Liu, Lili 1 ;

作者机构： 1.Hunan Univ Sci & Technol, Sch Life & Hlth Sci, Xiangtan, Peoples R China

2.Hunan Univ Sci & Technol, Hunan Key Lab Econ Crops Genet Improvement & Integ, Xiangtan, Peoples R China

3.Hunan Acad Agr Sci, Crop Res Inst, Changsha, Peoples R China

关键词： Antioxidants; Brassica napus; cadmium stress; exogenous abscisic acid; physiological responses

期刊名称：ENVIRONMENTAL POLLUTANTS AND BIOAVAILABILITY （ 影响因子：3.3； 五年影响因子：3.3 ）

ISSN： 2639-5932

年卷期： 2023 年 35 卷 1 期

页码：

收录情况： SCI

摘要： The plant hormone abscisic acid (ABA) has been proved to be a key protector against abiotic stresses at appropriate concentrations. This study aimed to investigate the role of ABA in alleviating cadmium (Cd) stress in two Brassica napus of oil-vegetable dual-purpose (Youfei 1 and Xiangyou 787). Cd stress disturbed the normal growth of rapeseed, however, specific ABA concentrations could alleviate the effects of Cd stress in B. napus. The results confirmed that exogenous ABA mitigates the negative effects of Cd-induced plant toxicity in B. napus by increasing growth traits, enhancing pigment molecules, enhancing gas exchange in leaves, as well as regulating antioxidation and the expression levels of genes related to Cd stress. This study indicated that ABA played an important protective role in regulating cadmium resistance in Brassica napus, and provided basic data for its application in actual production.

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