Functional characterization of maize phytochrome-interacting factor 3 (ZmPIF3) in enhancing salt tolerance in arabidopsis
文献类型： 外文期刊
作者： Han, Zanping 1 ; Liu, Haohao 2 ; Zhao, Xiyong 3 ; Liu, Shanshan 2 ; Zhang, Jun 4 ; Guo, Shulei 4 ; Wang, Bin 1 ; Zhao, Linxi 1 ; Jin, Yunqian 1 ; Guo, Yiyang 1 ; Tian, Lei 2 ;
作者机构： 1.Henan Univ Sci & Technol, Coll Agron, Luoyang, Peoples R China
2.Henan Agr Univ, Coll Agron, Zhengzhou, Peoples R China
3.Anhui Acad Agr Sci, Crop Res Inst, Hefei, Peoples R China
4.Henan Acad Agr Sci, Cereal Inst, Henan Prov Key Lab Maize Biol, Zhengzhou, Peoples R China
关键词： ZmPIF3; Salt tolerance; Transcriptomics; Transgenic Arabidopsis; Physiological response; Biochemical indices
期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）
ISSN： 2045-2322
年卷期： 2024 年 14 卷 1 期
页码：
收录情况： SCI
摘要： Soil salinization, a prevalent form of environmental stress, leads to significant soil desertification and impacts agricultural productivity by altering the internal soil environment, slowing cellular metabolism, and modifying cellular architecture. This results in a marked reduction in both the yield and diversity of crops. Maize, which is particularly susceptible to salt stress, serves as a critical model for studying these effects, making the elucidation of its molecular responses essential for crop improvement strategies. This study focuses on the phytochrome-interacting factor 3 (PIF3), previously known for its role in freezing tolerance, to assess its function in salt stress tolerance. Utilizing two transcript variants of maize ZmPIF3 (ZmPIF3.1 and ZmPIF3.2), we engineered Arabidopsis transgenic lines to overexpress these variants and analyzed their phenotypic, physiological, biochemical, and transcriptomic responses to salt stress. Our findings reveal that these transgenic lines displayed not only enhanced salt tolerance but also improved peroxide decomposition and reduced cellular membrane damage. Transcriptome analysis indicated significant roles of hormonal and Ca2+ signaling pathways, along with key transcription factors, in mediating the enhanced salt stress response. This research underscores a novel role for ZmPIF3 in plant salt stress tolerance, offering potential avenues for breeding salt-resistant crop varieties.
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