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Role of biotin carboxyl carrier protein subunit 2 (BCCP2) in resistance to multiple stresses in Arabidopsis thaliana

文献类型： 外文期刊

作者： Wang, Yao 1 ; Wang, Min 3 ; Ye, Xiaoxue 4 ; Shen, Huifang 1 ; Zhao, Rui 1 ; Wu, Jiawu 1 ; Wang, Fei 1 ; Shen, Xinting 1 ; Li, Zhebin 1 ; Zhou, Ye 1 ; Li, Bo 1 ; Yao, Xinmiao 1 ; Lu, Shuwen 5 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Food Proc Res Inst, Harbin 150086, Peoples R China

2.Heilongjiang Prov Key Lab Food Proc, Harbin 150086, Peoples R China

3.Heilongjiang Acad Agr Sci, Inst Agr Remote Sensing & Informat, Harbin 150086, Peoples R China

4.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Sanya Res Inst, Haikou 570102, Peoples R China

5.Heilongjiang Acad Agr Sci, Harbin 150086, Peoples R China

关键词： Arabidopsis thaliana; Multiple stresses; Gene expression pattern; Plant phenotype; Antioxidant enzyme activity

期刊名称：BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS （ 影响因子：2.2； 五年影响因子：2.5 ）

ISSN： 0006-291X

年卷期： 2025 年 745 卷

页码：

收录情况： SCI

摘要： Abiotic stresses, including drought, salinity, and temperature extremes, are serious constraints to plant growth and agricultural development. These stresses that plants face in nature are often multiple and complex. Biotin carboxyl carrier protein subunit 2 (BCCP2) is one of the two subunits of biotin carboxyl carrier protein, which is a functional subunit of acetyl coenzyme A carboxylase, primarily studied for its role in fatty acid synthesis. In this study, we identified the expression pattern of AtBCCP2 under various stress conditions, including 4 mM NaHCOs, 2 mM NaaCOs, 150 mM NaCl, 300 mM D-mannitol, 100 mu M ABA, 5 mM HaOa, 4 degrees C, and 37 degrees C. It was determined that AtBCCP2 is positively regulated by NaHCOs, NaaCOs, NaCl, and ABA, but negatively regulated by Dmannitol. Phenotypic experiment confirmed that the AtBCCP2 transgenic overexpression plants exhibited increased resistance to NaHCOs, NaaCOs, NaCl, and ABA stresses, but more sensitive to drought stress simulated by D-mannitol. In contrast, mutant plants showed the opposite phenotypes. Additionally, AtBCCP2 transgenic overexpression plants demonstrated stronger antioxidant activity and lower MDA content under stresses such as NaHCOs, NaaCOs, NaCl, and ABA, in contrast to the mutant plants. In response to D-mannitol simulated drought stress, AtBCCP2 transgenic overexpression plants showed lower antioxidant activity and higher MDA content, while mutant plants exhibited the opposite trend. In conclusion, this study provides a theoretical basis for understanding the role of AtBCCP2 in response to multiple stresses and contributes a new gene to the pool of those involved in abiotic stress responses.

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