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

Journal Article · · Nature Communications
ORCiD logo [1]; ORCiD logo [2];  [3];  [3];  [4];  [5]; ORCiD logo [4]; ORCiD logo [6];  [7];  [8]
  1. Michigan State Univ., East Lansing, MI (United States). Dept. of Energy Plant Research Lab., Cell and Molecular Biology Program, and Plant Resilience Institute
  2. Michigan State Univ., East Lansing, MI (United States). Dept. of Energy Plant Research Lab. and Plant Resilience Institute
  3. Michigan State Univ., East Lansing, MI (United States). Dept. of Energy Plant Research Lab.
  4. Michigan State Univ., East Lansing, MI (United States). Dept. of Plant Biology and Center for Genomics Enabled Plant Science
  5. Western Michigan Univ., Kalamazoo MI (United States). Dept. of Biological Sciences
  6. Max Planck Inst. for Plant Breeding Research, Cologne (Germany)
  7. Michigan State Univ., East Lansing, MI (United States). Dept. of Energy Plant Research Lab., Cell and Molecular Biology Program, Department of Biochemistry and Molecular Biology and Department of Microbiology and Molecular Genetics
  8. Michigan State Univ., East Lansing, MI (United States). Dept. of Energy Plant Research Lab., Cell and Molecular Biology Program, Plant Resilience Institute, Dept. of Plant Biology, Department of Microbiology and Molecular Genetics, and Howard Hughes Medical Inst.

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.

Research Organization:
Michigan State Univ., East Lansing, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-91ER20021
OSTI ID:
1529931
Journal Information:
Nature Communications, Vol. 8, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 124 works
Citation information provided by
Web of Science

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Temperature and Hormones Associated with Bacterial Etiolation Symptoms of Creeping Bentgrass and Annual Bluegrass journal August 2018
Paecilomyces variotii extracts (ZNC) enhance plant immunity and promote plant growth journal May 2019
Multiple quantitative trait loci contribute to resistance to bacterial canker incited by Pseudomonas syringae pv. actinidiae in kiwifruit (Actinidia chinensis) journal September 2019
Rice pyramided line IRBB67 (Xa4/Xa7) homeostasis under combined stress of high temperature and bacterial blight journal January 2020
RNA-seq analysis provides insights into cold stress responses of Xanthomonas citri pv. citri journal November 2019
Full-length transcriptome sequencing reveals the low-temperature-tolerance mechanism of Medicago falcata roots journal December 2019
Cell autonomous and non-autonomous functions of plant intracellular immune receptors in stomatal defense and apoplastic defense journal October 2019
Coordination Between ROS Regulatory Systems and Other Pathways Under Heat Stress and Pathogen Attack journal April 2018
An Overview of Biomembrane Functions in Plant Responses to High-Temperature Stress journal July 2018
Plant-pathogen interaction in the presence of abiotic stress: What do we know about plant responses? journal November 2019
Pseudomonas syringae: what it takes to be a pathogen journal February 2018
An H3K27me3 demethylase-HSFA2 regulatory loop orchestrates transgenerational thermomemory in Arabidopsis journal February 2019
Salicylic acid-independent role of NPR1 is required for protection from proteotoxic stress in the plant endoplasmic reticulum journal May 2018
Arabidopsis UBC 13 differentially regulates two programmed cell death pathways in responses to pathogen and low‐temperature stress journal September 2018
An important role of l ‐fucose biosynthesis and protein fucosylation genes in Arabidopsis immunity journal January 2019
Plant immunity in signal integration between biotic and abiotic stress responses journal July 2019
High ambient temperature antagonizes ethylene-induced exaggerated apical hook formation in etiolated Arabidopsis seedlings: High temperature suppresses hook formation journal August 2018
A human pathogenic bacterium Shigella proliferates in plants through adoption of type III effectors for shigellosis journal July 2019
jvenn: an interactive Venn diagram viewer journal January 2014
Rice pyramided line IRBB67 (Xa4/Xa7) homeostasis under combined stress of high temperature and bacterial blight other January 2020
Review: Plant eco-evolutionary responses to climate change: Emerging directions journal March 2021
Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana journal March 2019