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Plant defense under Arctic light conditions: Can plants withstand invading pests?

Global warming is predicted to change the growth conditions for plants and crops in regions at high latitudes (>60° N), including the Arctic. This will be accompanied by alterations in the composition of natural plant and pest communities, as herbivorous arthropods will invade these regions as we...

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Autores principales: Mithöfer, Axel, Riemann, Michael, Faehn, Corine A., Mrazova, Anna, Jaakola, Laura
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9729949/
https://www.ncbi.nlm.nih.gov/pubmed/36507393
http://dx.doi.org/10.3389/fpls.2022.1051107
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author Mithöfer, Axel
Riemann, Michael
Faehn, Corine A.
Mrazova, Anna
Jaakola, Laura
author_facet Mithöfer, Axel
Riemann, Michael
Faehn, Corine A.
Mrazova, Anna
Jaakola, Laura
author_sort Mithöfer, Axel
collection PubMed
description Global warming is predicted to change the growth conditions for plants and crops in regions at high latitudes (>60° N), including the Arctic. This will be accompanied by alterations in the composition of natural plant and pest communities, as herbivorous arthropods will invade these regions as well. Interactions between previously non-overlapping species may occur and cause new challenges to herbivore attack. However, plants growing at high latitudes experience less herbivory compared to plants grown at lower latitudes. We hypothesize that this finding is due to a gradient of constitutive chemical defense towards the Northern regions. We further hypothesize that higher level of defensive compounds is mediated by higher level of the defense-related phytohormone jasmonate. Because its biosynthesis is light dependent, Arctic summer day light conditions can promote jasmonate accumulation and, hence, downstream physiological responses. A pilot study with bilberry (Vaccinium myrtillus) plants grown under different light regimes supports the hypothesis.
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spelling pubmed-97299492022-12-09 Plant defense under Arctic light conditions: Can plants withstand invading pests? Mithöfer, Axel Riemann, Michael Faehn, Corine A. Mrazova, Anna Jaakola, Laura Front Plant Sci Plant Science Global warming is predicted to change the growth conditions for plants and crops in regions at high latitudes (>60° N), including the Arctic. This will be accompanied by alterations in the composition of natural plant and pest communities, as herbivorous arthropods will invade these regions as well. Interactions between previously non-overlapping species may occur and cause new challenges to herbivore attack. However, plants growing at high latitudes experience less herbivory compared to plants grown at lower latitudes. We hypothesize that this finding is due to a gradient of constitutive chemical defense towards the Northern regions. We further hypothesize that higher level of defensive compounds is mediated by higher level of the defense-related phytohormone jasmonate. Because its biosynthesis is light dependent, Arctic summer day light conditions can promote jasmonate accumulation and, hence, downstream physiological responses. A pilot study with bilberry (Vaccinium myrtillus) plants grown under different light regimes supports the hypothesis. Frontiers Media S.A. 2022-11-24 /pmc/articles/PMC9729949/ /pubmed/36507393 http://dx.doi.org/10.3389/fpls.2022.1051107 Text en Copyright © 2022 Mithöfer, Riemann, Faehn, Mrazova and Jaakola 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
Mithöfer, Axel
Riemann, Michael
Faehn, Corine A.
Mrazova, Anna
Jaakola, Laura
Plant defense under Arctic light conditions: Can plants withstand invading pests?
title Plant defense under Arctic light conditions: Can plants withstand invading pests?
title_full Plant defense under Arctic light conditions: Can plants withstand invading pests?
title_fullStr Plant defense under Arctic light conditions: Can plants withstand invading pests?
title_full_unstemmed Plant defense under Arctic light conditions: Can plants withstand invading pests?
title_short Plant defense under Arctic light conditions: Can plants withstand invading pests?
title_sort plant defense under arctic light conditions: can plants withstand invading pests?
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9729949/
https://www.ncbi.nlm.nih.gov/pubmed/36507393
http://dx.doi.org/10.3389/fpls.2022.1051107
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