Evidence map›Paper›PMID 42270849›Full record

ArticlePlant cell reports2026

Identification of WRKY transcription factors (TFs) in the recretohalophyte Tamarix chinensis and functional analysis of TcWRKY13 under salt stress.

Xingxing Xu, Nan Yin, Chunhao Jiang, Lin Guan, Yutong Chen, Shuai Han, Qianqian Jin, Yanhong Shen, Qingzhang Du, Guojun Zhang

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Article in Plant cell reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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10 authors.

Xingxing Xu *College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China.
Nan Yin *College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China.
Chunhao JiangCollege of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China.
Lin GuanCollege of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China.
Yutong ChenCollege of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China.
Shuai HanCollege of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China.
Qianqian JinCollege of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China.
Yanhong ShenCollege of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China.
Qingzhang DuState Key Laboratory of Tree Genetics and Breeding, Beijing Forestry University, Beijing, 100083, China.
Guojun ZhangCollege of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, Hebei, China. zhangguojun-8@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

key messageWe identified 37 TcWRKY genes and analyzed their bioinformatics features. TcWRKY13 enhances salt tolerance by affecting ion accumulation, strengthening antioxidant defenses, and reducing ROS accumulation. Tamarix chinensis, a typical woody recretohalophyte, exhibits high salt tolerance by secreting salt through its multicellular salt glands. WRKY transcription factors (TFs) play critical roles in plant stress responses; however, their functions in T. chinensis remain unclear. In this study, 37 TcWRKY genes were identified from transcriptome datasets of T. chinensis. The results showed that all TcWRKY proteins are hydrophilic and liposoluble proteins, with lengths ranging from 97 to 761 amino acids (aa). Based on conserved domain characteristics, these members were classified into three groups, all of which contain the WRKYGQK core sequence and zinc finger structures. The results of the RNA-seq and quantitative real-time polymerase chain reaction experiments exhibited that TcWRKY13 was one of the genes most significantly responsive to salt stress. Subcellular localization experiments suggested that TcWRKY13 may be localized to both the nucleus and the cell membrane in tobacco leaves. Functional analyses demonstrated that transient overexpression of TcWRKY13 significantly enhanced salt tolerance in T. chinensis, whereas virus-induced gene silencing (VIGS) of TcWRKY13 reduced salt tolerance. Furthermore, heterologous overexpression of TcWRKY13 from T. chinensis in Arabidopsis thaliana enhanced salt tolerance, as evidenced by a reduced rise in Na⁺/K⁺ ion accumulation, elevated antioxidant enzyme activity, and reduced reactive oxygen species (ROS) accumulation. This study provides identification of the expressed WRKY genes under salt stress in T. chinensis and reveals the positive salt-tolerant function of TcWRKY13, offering a theoretical foundation for molecular breeding of crop glycophytes.

Indexed as

Plant ProteinsSalt StressTamaricaceaeTranscription FactorsAmino Acid SequenceGene Expression ProfilingGene Expression Regulation, PlantNicotianaPhylogenyPlants, Genetically ModifiedReactive Oxygen SpeciesSalt TolerancePlant ProteinsReactive Oxygen SpeciesTranscription FactorsSalt glandSalt secretionSalt toleranceTamarix chinensisWRKY

Identifiers

PMID42270849

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