Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic Stresses

The plant phytohormone ethylene regulates numerous physiological processes and contributes to plant–microbe interactions. Plants induce ethylene production to ward off pathogens after recognition of conserved microbe-associated molecular patterns (MAMPs). However, plant immune responses against path...

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Main Authors: Kirti Shekhawat, Katja Fröhlich, Gabriel X. García-Ramírez, Marilia A. Trapp, Heribert Hirt
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/12/1/31
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author Kirti Shekhawat
Katja Fröhlich
Gabriel X. García-Ramírez
Marilia A. Trapp
Heribert Hirt
author_facet Kirti Shekhawat
Katja Fröhlich
Gabriel X. García-Ramírez
Marilia A. Trapp
Heribert Hirt
author_sort Kirti Shekhawat
collection DOAJ
description The plant phytohormone ethylene regulates numerous physiological processes and contributes to plant–microbe interactions. Plants induce ethylene production to ward off pathogens after recognition of conserved microbe-associated molecular patterns (MAMPs). However, plant immune responses against pathogens are essentially not different from those triggered by neutral and beneficial microbes. Recent studies indicate that ethylene is an important factor for beneficial plant–microbial association under abiotic stress such as salt and heat stress. The association of beneficial microbes with plants under abiotic stresses modulates ethylene levels which control the expression of ethylene-responsive genes (<i>ERF</i>), and <i>ERF</i>s further regulate the plant transcriptome, epi-transcriptome, Na<sup>+</sup>/K<sup>+</sup> homeostasis and antioxidant defense mechanisms against reactive oxygen species (ROS). Understanding ethylene-dependent plant–microbe interactions is crucial for the development of new strategies aimed at enhancing plant tolerance to harsh environmental conditions. In this review, we underline the importance of ethylene in beneficial plant–microbe interaction under abiotic stresses.
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spelling doaj.art-e3027b88d1c748a68a315b9458a4ca692023-11-16T15:05:08ZengMDPI AGCells2073-44092022-12-011213110.3390/cells12010031Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic StressesKirti Shekhawat0Katja Fröhlich1Gabriel X. García-Ramírez2Marilia A. Trapp3Heribert Hirt4DARWIN21, Center for Desert Agriculture, Biological and Environmental, Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi ArabiaDARWIN21, Center for Desert Agriculture, Biological and Environmental, Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi ArabiaDARWIN21, Center for Desert Agriculture, Biological and Environmental, Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi ArabiaDARWIN21, Center for Desert Agriculture, Biological and Environmental, Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi ArabiaDARWIN21, Center for Desert Agriculture, Biological and Environmental, Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi ArabiaThe plant phytohormone ethylene regulates numerous physiological processes and contributes to plant–microbe interactions. Plants induce ethylene production to ward off pathogens after recognition of conserved microbe-associated molecular patterns (MAMPs). However, plant immune responses against pathogens are essentially not different from those triggered by neutral and beneficial microbes. Recent studies indicate that ethylene is an important factor for beneficial plant–microbial association under abiotic stress such as salt and heat stress. The association of beneficial microbes with plants under abiotic stresses modulates ethylene levels which control the expression of ethylene-responsive genes (<i>ERF</i>), and <i>ERF</i>s further regulate the plant transcriptome, epi-transcriptome, Na<sup>+</sup>/K<sup>+</sup> homeostasis and antioxidant defense mechanisms against reactive oxygen species (ROS). Understanding ethylene-dependent plant–microbe interactions is crucial for the development of new strategies aimed at enhancing plant tolerance to harsh environmental conditions. In this review, we underline the importance of ethylene in beneficial plant–microbe interaction under abiotic stresses.https://www.mdpi.com/2073-4409/12/1/31Ethyleneplant-microbe interactionsabiotic stressestranscriptomereactive oxygen species
spellingShingle Kirti Shekhawat
Katja Fröhlich
Gabriel X. García-Ramírez
Marilia A. Trapp
Heribert Hirt
Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic Stresses
Cells
Ethylene
plant-microbe interactions
abiotic stresses
transcriptome
reactive oxygen species
title Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic Stresses
title_full Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic Stresses
title_fullStr Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic Stresses
title_full_unstemmed Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic Stresses
title_short Ethylene: A Master Regulator of Plant–Microbe Interactions under Abiotic Stresses
title_sort ethylene a master regulator of plant microbe interactions under abiotic stresses
topic Ethylene
plant-microbe interactions
abiotic stresses
transcriptome
reactive oxygen species
url https://www.mdpi.com/2073-4409/12/1/31
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AT gabrielxgarciaramirez ethyleneamasterregulatorofplantmicrobeinteractionsunderabioticstresses
AT mariliaatrapp ethyleneamasterregulatorofplantmicrobeinteractionsunderabioticstresses
AT heriberthirt ethyleneamasterregulatorofplantmicrobeinteractionsunderabioticstresses