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Dual impact of elevated temperature on plant defence and bacterial virulence in Arabidopsis

Author

Listed:
  • Bethany Huot

    (Michigan State University
    Michigan State University
    Michigan State University)

  • Christian Danve M. Castroverde

    (Michigan State University
    Michigan State University)

  • André C. Velásquez

    (Michigan State University)

  • Emily Hubbard

    (Michigan State University)

  • Jane A. Pulman

    (Michigan State University
    Michigan State University)

  • Jian Yao

    (Western Michigan University)

  • Kevin L. Childs

    (Michigan State University
    Michigan State University)

  • Kenichi Tsuda

    (Max Planck Institute for Plant Breeding Research)

  • Beronda L. Montgomery

    (Michigan State University
    Michigan State University
    Michigan State University
    Michigan State University)

  • Sheng Yang He

    (Michigan State University
    Michigan State University
    Michigan State University
    Michigan State University)

Abstract

Environmental conditions profoundly affect plant disease development; however, the underlying molecular bases are not well understood. Here we show that elevated temperature significantly increases the susceptibility of Arabidopsis to Pseudomonas syringae pv. tomato (Pst) DC3000 independently of the phyB/PIF thermosensing pathway. Instead, elevated temperature promotes translocation of bacterial effector proteins into plant cells and causes a loss of ICS1-mediated salicylic acid (SA) biosynthesis. Global transcriptome analysis reveals a major temperature-sensitive node of SA signalling, impacting ~60% of benzothiadiazole (BTH)-regulated genes, including ICS1 and the canonical SA marker gene, PR1. Remarkably, BTH can effectively protect Arabidopsis against Pst DC3000 infection at elevated temperature despite the lack of ICS1 and PR1 expression. Our results highlight the broad impact of a major climate condition on the enigmatic molecular interplay between temperature, SA defence and function of a central bacterial virulence system in the context of a widely studied susceptible plant–pathogen interaction.

Suggested Citation

  • Bethany Huot & Christian Danve M. Castroverde & André C. Velásquez & Emily Hubbard & Jane A. Pulman & Jian Yao & Kevin L. Childs & Kenichi Tsuda & Beronda L. Montgomery & Sheng Yang He, 2017. "Dual impact of elevated temperature on plant defence and bacterial virulence in Arabidopsis," Nature Communications, Nature, vol. 8(1), pages 1-12, December.
  • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01674-2
    DOI: 10.1038/s41467-017-01674-2
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    Cited by:

    1. Xueting Gu & Fuyan Si & Zhengxiang Feng & Shunjie Li & Di Liang & Pei Yang & Chao Yang & Bin Yan & Jun Tang & Yu Yang & Tai Li & Lin Li & Jinling Zhou & Ji Li & Lili Feng & Ji-Yun Liu & Yuanzhu Yang &, 2023. "The OsSGS3-tasiRNA-OsARF3 module orchestrates abiotic-biotic stress response trade-off in rice," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Ying-Lan Chen & Fan-Wei Lin & Kai-Tan Cheng & Chi-Hsin Chang & Sheng-Chi Hung & Thomas Efferth & Yet-Ran Chen, 2023. "XCP1 cleaves Pathogenesis-related protein 1 into CAPE9 for systemic immunity in Arabidopsis," Nature Communications, Nature, vol. 14(1), pages 1-15, December.

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