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Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana

Recognition of pathogen‐associated molecular patterns (PAMPs) is crucial for plant defence against pathogen attack. The best characterized PAMP is flg22, a 22 amino acid conserved peptide from flagellin protein. In Arabidopsis thaliana, flg22 is recognized by the flagellin sensing 2 (FLS2) receptor....

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Autores principales: Janda, Martin, Lamparová, Lucie, Zubíková, Alžběta, Burketová, Lenka, Martinec, Jan, Krčková, Zuzana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6589723/
https://www.ncbi.nlm.nih.gov/pubmed/30924595
http://dx.doi.org/10.1111/mpp.12799
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author Janda, Martin
Lamparová, Lucie
Zubíková, Alžběta
Burketová, Lenka
Martinec, Jan
Krčková, Zuzana
author_facet Janda, Martin
Lamparová, Lucie
Zubíková, Alžběta
Burketová, Lenka
Martinec, Jan
Krčková, Zuzana
author_sort Janda, Martin
collection PubMed
description Recognition of pathogen‐associated molecular patterns (PAMPs) is crucial for plant defence against pathogen attack. The best characterized PAMP is flg22, a 22 amino acid conserved peptide from flagellin protein. In Arabidopsis thaliana, flg22 is recognized by the flagellin sensing 2 (FLS2) receptor. In this study, we focused on biotic stress responses triggered by flg22 after exposure to temporary heat stress (HS). It is important to study the reactions of plants to multiple stress conditions because plants are often exposed simultaneously to a combination of both abiotic and biotic stresses. Transient early production of reactive oxygen species (ROS) is a well‐characterized response to PAMP recognition. We demonstrate the strong reduction of flg22‐induced ROS production in A. thaliana after HS treatment. In addition, a decrease in FLS2 transcription and a decrease of the FLS2 presence at the plasma membrane are shown after HS. In summary, our data show the strong inhibitory effect of HS on flg22‐triggered events in A. thaliana. Subsequently, temporary HS strongly decreases the resistance of A. thaliana to Pseudomonas syringae. We propose that short exposure to high temperature is a crucial abiotic stress factor that suppresses PAMP‐triggered immunity, which subsequently leads to the higher susceptibility of plants to pathogens.
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spelling pubmed-65897232019-09-16 Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana Janda, Martin Lamparová, Lucie Zubíková, Alžběta Burketová, Lenka Martinec, Jan Krčková, Zuzana Mol Plant Pathol Short Communications Recognition of pathogen‐associated molecular patterns (PAMPs) is crucial for plant defence against pathogen attack. The best characterized PAMP is flg22, a 22 amino acid conserved peptide from flagellin protein. In Arabidopsis thaliana, flg22 is recognized by the flagellin sensing 2 (FLS2) receptor. In this study, we focused on biotic stress responses triggered by flg22 after exposure to temporary heat stress (HS). It is important to study the reactions of plants to multiple stress conditions because plants are often exposed simultaneously to a combination of both abiotic and biotic stresses. Transient early production of reactive oxygen species (ROS) is a well‐characterized response to PAMP recognition. We demonstrate the strong reduction of flg22‐induced ROS production in A. thaliana after HS treatment. In addition, a decrease in FLS2 transcription and a decrease of the FLS2 presence at the plasma membrane are shown after HS. In summary, our data show the strong inhibitory effect of HS on flg22‐triggered events in A. thaliana. Subsequently, temporary HS strongly decreases the resistance of A. thaliana to Pseudomonas syringae. We propose that short exposure to high temperature is a crucial abiotic stress factor that suppresses PAMP‐triggered immunity, which subsequently leads to the higher susceptibility of plants to pathogens. John Wiley and Sons Inc. 2019-03-29 /pmc/articles/PMC6589723/ /pubmed/30924595 http://dx.doi.org/10.1111/mpp.12799 Text en © 2019 The Authors. Molecular Plant Pathology published by British Society for Plant Pathology and John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Short Communications
Janda, Martin
Lamparová, Lucie
Zubíková, Alžběta
Burketová, Lenka
Martinec, Jan
Krčková, Zuzana
Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana
title Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana
title_full Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana
title_fullStr Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana
title_full_unstemmed Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana
title_short Temporary heat stress suppresses PAMP‐triggered immunity and resistance to bacteria in Arabidopsis thaliana
title_sort temporary heat stress suppresses pamp‐triggered immunity and resistance to bacteria in arabidopsis thaliana
topic Short Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6589723/
https://www.ncbi.nlm.nih.gov/pubmed/30924595
http://dx.doi.org/10.1111/mpp.12799
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