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ORIGINAL RESEARCH article

Front. Plant Sci.
Sec. Plant Symbiotic Interactions
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1510196
This article is part of the Research Topic Cross-Kingdom Communications Among Plants, Fungi and Bacteria: From Molecules to Ecological Factors View all 9 articles

Eucalyptus grandis WRKY genes provide insight into the role of arbuscular mycorrhizal symbiosis in defense against Ralstonia solanacearum

Provisionally accepted
Jianlang Zhang Jianlang Zhang 1Xinzhu Yang Xinzhu Yang 1*Chunyu Huo Chunyu Huo 1*Xinyi Fan Xinyi Fan 1*Qiutong Liu Qiutong Liu 1*Zhihong Liu Zhihong Liu 1*Yu Su Yu Su 2*Zujing Chen Zujing Chen 1*
  • 1 South China Agricultural University, Guangzhou, China
  • 2 Guangzhou Collaborative Innovation Center on Science-tech of Ecology and Landscape, Guangzhou institute of Forestry and Landscape Architect, Guangzhou 510405, China, guangzhou, China

The final, formatted version of the article will be published soon.

    WRKY transcription factors are essential for plant growth, health, and responses to biotic and abiotic stress. In this study, we performed a deep in silico characterization of the WRKY gene family in the genome of Eucalyptus grandis. We also analyzed the expression profiles of these genes upon colonization by the arbuscular mycorrhizal fungus (AMF) Rhizophagus irregularis (Ri) and infection with the bacterial pathogen Ralstonia solanacearum (Rs). A total of 117 EgWRKYs were identified. Phylogenetic analysis divided the EgWRKY proteins into three groups: group I (21 proteins, 17.95%), group II (65 proteins, 55.56%), and group III (24 proteins, 20.51%). Additionally, seven EgWRKY proteins (5.98%) were categorized into group IV due to the absence of the WRKY domain or zinc-finger structure.

    Keywords: WRKY, arbuscular mycorrhizal fungi (AMFs), Rhizophagus irregularis, Eucalyptus grandis, Ralstonia solanacearum, plant-AMF-bacterium interaction

    Received: 12 Oct 2024; Accepted: 22 Jan 2025.

    Copyright: © 2025 Zhang, Yang, Huo, Fan, Liu, Liu, Su and Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Xinzhu Yang, South China Agricultural University, Guangzhou, China
    Chunyu Huo, South China Agricultural University, Guangzhou, China
    Xinyi Fan, South China Agricultural University, Guangzhou, China
    Qiutong Liu, South China Agricultural University, Guangzhou, China
    Zhihong Liu, South China Agricultural University, Guangzhou, China
    Yu Su, Guangzhou Collaborative Innovation Center on Science-tech of Ecology and Landscape, Guangzhou institute of Forestry and Landscape Architect, Guangzhou 510405, China, guangzhou, China
    Zujing Chen, South China Agricultural University, Guangzhou, China

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