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MINI REVIEW article

Front. Plant Sci.
Sec. Plant Pathogen Interactions
Volume 15 - 2024 | doi: 10.3389/fpls.2024.1518880
This article is part of the Research Topic Unraveling Molecular Mechanisms of Citrus Resistance to Huanglongbing View all 3 articles

Swords and shields: The war between Candidatus Liberibacter asiaticus and citrus

Provisionally accepted
Yanan Hu Yanan Hu Nannan Lu Nannan Lu Kaiqiang Bao Kaiqiang Bao Shuting Liu Shuting Liu Ruimin Li Ruimin Li *Guiyan Huang Guiyan Huang *
  • Gannan Normal University, Ganzhou, China

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

    Citrus huanglongbing (HLB) represents a significant threat to the citrus industry, mainly caused by the phloem-limited bacterium Candidatus Liberibacter asiaticus (CLas). In this review, we summarize recent advances in understanding the relationship between citrus and CLas, particularly examining the functions of Sec-dependent effectors (SDEs) and non-classically secreted proteins (ncSPs) in virulence, as well as their targeted interactions with citrus. We further investigate the impact of SDEs on various physiological processes, including systemic acquired resistance (SAR), reactive oxygen species (ROS) accumulation, vesicle trafficking, callose deposition, cell death, autophagy, chlorosis and flowering. Additionally, we focus on the functional research on specific disease-resistant genes in citrus and the molecular mechanisms underlying disease resistance. Finally, we discuss the existing gaps and unresolved questions regarding citrus-CLas interactions, proposing potential solutions to facilitate the development of HLB-resistant citrus varieties.

    Keywords: Citrus sinensis, Candidatus Liberibacter asiaticus, Sec-dependent effectors, Interaction, Virulence

    Received: 29 Oct 2024; Accepted: 12 Dec 2024.

    Copyright: © 2024 Hu, Lu, Bao, Liu, Li and Huang. 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:
    Ruimin Li, Gannan Normal University, Ganzhou, China
    Guiyan Huang, Gannan Normal University, Ganzhou, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.