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Overexpression of a Fragaria x ananassa AP2/ERF Transcription Factor Gene (FaTINY2) Increases Cold and Salt Tolerance in Arabidopsis thaliana

文献类型： 外文期刊

作者： Li, Wenhui 1 ; Zhang, Wenhao 1 ; Li, Huiwen 1 ; Yao, Anqi 1 ; Ma, Zhongyong 1 ; Kang, Rui 1 ; Guo, Yanbo 1 ; Li, Xingguo 1 ; Yu, Wenquan 2 ; Han, Deguo 1 ;

作者机构： 1.Northeast Agr Univ, Coll Hort & Landscape Architecture, Natl Local Joint Engn Res Ctr Dev & Utilizat Small, Minist Agr & Rural Affairs,Key Lab Biol & Genet Im, Harbin 150030, Peoples R China

2.Heilongjiang Acad Agr Sci, Mudanjiang Branch, Mudanjiang 157041, Peoples R China

关键词： FaTINY2; AP2/ERF; low temperature; high salt

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2025 年 26 卷 5 期

页码：

收录情况： SCI

摘要： The AP2/ERF family of transcription factors is one of the most conserved and important transcription factor families, and it is ubiquitous in plants. It plays an essential role in plant morphogenesis, molecular mechanisms of stress responses, hormone signaling pathways, and synthesis of secondary metabolites. FaTINY2 was cloned from the octaploid strawberry Fragaria x ananassa for this investigation. Bioinformatics revealed that the protein possesses a conserved AP2 domain and is localized in the nucleus. When FaTINY2 was expressed in plants, quantitative analysis revealed that the gene was tissue-specific. There are lower contents of reactive oxygen species (ROS) and malondialdehyde (MDA), higher contents of proline, chlorophyll, and higher activities of catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD) in transgenic Arabidopsis thaliana than wild type (WT) and unload line (UL) plants under cold and salt stress. FaTINY2 plays a role in enhancing stress tolerance by regulating a few genes linked to the stress response. The findings of this study were that FaTINY2 transgenic Arabidopsis thaliana plants were more tolerant to salt and cold than WT and UL plants. In addition to offering a theoretical reference for strawberry production under stress, this research established a groundwork for exploration into the molecular mechanisms in which strawberries respond to cold and high salt stress.

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