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The plant hormone ethylene promotes abiotic stress tolerance in the liverwort Marchantia polymorpha

Plants are often faced with an array of adverse environmental conditions and must respond appropriately to grow and develop. In angiosperms, the plant hormone ethylene is known to play a protective role in responses to abiotic stress. Here we investigated whether ethylene mediates resistance to abio...

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Autores principales: Bharadwaj, Priyanka S., Sanchez, Lizbeth, Li, Dongdong, Enyi, Divine, Van de Poel, Bram, Chang, Caren
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9632724/
https://www.ncbi.nlm.nih.gov/pubmed/36340412
http://dx.doi.org/10.3389/fpls.2022.998267
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author Bharadwaj, Priyanka S.
Sanchez, Lizbeth
Li, Dongdong
Enyi, Divine
Van de Poel, Bram
Chang, Caren
author_facet Bharadwaj, Priyanka S.
Sanchez, Lizbeth
Li, Dongdong
Enyi, Divine
Van de Poel, Bram
Chang, Caren
author_sort Bharadwaj, Priyanka S.
collection PubMed
description Plants are often faced with an array of adverse environmental conditions and must respond appropriately to grow and develop. In angiosperms, the plant hormone ethylene is known to play a protective role in responses to abiotic stress. Here we investigated whether ethylene mediates resistance to abiotic stress in the liverwort Marchantia polymorpha, one of the most distant land plant relatives of angiosperms. Using existing M. polymorpha knockout mutants of Mpein3, and Mpctr1, two genes in the ethylene signaling pathway, we examined responses to heat, salinity, nutrient deficiency, and continuous far-red light. The Mpein3 and Mpctr1 mutants were previously shown to confer ethylene insensitivity and constitutive ethylene responses, respectively. Using mild or sub-lethal doses of each stress treatment, we found that Mpctr1 mutants displayed stress resilience similar to or greater than the wild type. In contrast, Mpein3 mutants showed less resilience than the wild type. Consistent with ethylene being a stress hormone, we demonstrated that ethylene production is enhanced by each stress treatment. These results suggest that ethylene plays a role in protecting against abiotic stress in M. polymorpha, and that ethylene has likely been conserved as a stress hormone since before the evolutionary divergence of bryophytes from the land plant lineage approximately 450 Ma.
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spelling pubmed-96327242022-11-04 The plant hormone ethylene promotes abiotic stress tolerance in the liverwort Marchantia polymorpha Bharadwaj, Priyanka S. Sanchez, Lizbeth Li, Dongdong Enyi, Divine Van de Poel, Bram Chang, Caren Front Plant Sci Plant Science Plants are often faced with an array of adverse environmental conditions and must respond appropriately to grow and develop. In angiosperms, the plant hormone ethylene is known to play a protective role in responses to abiotic stress. Here we investigated whether ethylene mediates resistance to abiotic stress in the liverwort Marchantia polymorpha, one of the most distant land plant relatives of angiosperms. Using existing M. polymorpha knockout mutants of Mpein3, and Mpctr1, two genes in the ethylene signaling pathway, we examined responses to heat, salinity, nutrient deficiency, and continuous far-red light. The Mpein3 and Mpctr1 mutants were previously shown to confer ethylene insensitivity and constitutive ethylene responses, respectively. Using mild or sub-lethal doses of each stress treatment, we found that Mpctr1 mutants displayed stress resilience similar to or greater than the wild type. In contrast, Mpein3 mutants showed less resilience than the wild type. Consistent with ethylene being a stress hormone, we demonstrated that ethylene production is enhanced by each stress treatment. These results suggest that ethylene plays a role in protecting against abiotic stress in M. polymorpha, and that ethylene has likely been conserved as a stress hormone since before the evolutionary divergence of bryophytes from the land plant lineage approximately 450 Ma. Frontiers Media S.A. 2022-10-18 /pmc/articles/PMC9632724/ /pubmed/36340412 http://dx.doi.org/10.3389/fpls.2022.998267 Text en Copyright © 2022 Bharadwaj, Sanchez, Li, Enyi, Van de Poel and Chang https://creativecommons.org/licenses/by/4.0/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) and the copyright owner(s) 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.
spellingShingle Plant Science
Bharadwaj, Priyanka S.
Sanchez, Lizbeth
Li, Dongdong
Enyi, Divine
Van de Poel, Bram
Chang, Caren
The plant hormone ethylene promotes abiotic stress tolerance in the liverwort Marchantia polymorpha
title The plant hormone ethylene promotes abiotic stress tolerance in the liverwort Marchantia polymorpha
title_full The plant hormone ethylene promotes abiotic stress tolerance in the liverwort Marchantia polymorpha
title_fullStr The plant hormone ethylene promotes abiotic stress tolerance in the liverwort Marchantia polymorpha
title_full_unstemmed The plant hormone ethylene promotes abiotic stress tolerance in the liverwort Marchantia polymorpha
title_short The plant hormone ethylene promotes abiotic stress tolerance in the liverwort Marchantia polymorpha
title_sort plant hormone ethylene promotes abiotic stress tolerance in the liverwort marchantia polymorpha
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9632724/
https://www.ncbi.nlm.nih.gov/pubmed/36340412
http://dx.doi.org/10.3389/fpls.2022.998267
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