Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants
Deschampsia antarctica Desv, is the most successful colonizing species of a cold continent. In recent years due to climate change, the frequency of heat waves has increased in Antarctica, registering anomalous high temperatures during the summer of 2020. However, the populations of D. antarctica are...
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ftpubmed:oai:pubmedcentral.nih.gov:7959801 2023-05-15T13:52:43+02:00 Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants Cortés-Antiquera, Rodrigo Pizarro, Marisol Contreras, Rodrigo A. Köhler, Hans Zúñiga, Gustavo E. 2021-02-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959801/ https://doi.org/10.3389/fpls.2021.635491 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959801/ http://dx.doi.org/10.3389/fpls.2021.635491 Copyright © 2021 Cortés-Antiquera, Pizarro, Contreras, Köhler and Zúñiga. http://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. CC-BY Front Plant Sci Plant Science Text 2021 ftpubmed https://doi.org/10.3389/fpls.2021.635491 2021-03-21T01:41:24Z Deschampsia antarctica Desv, is the most successful colonizing species of a cold continent. In recent years due to climate change, the frequency of heat waves has increased in Antarctica, registering anomalous high temperatures during the summer of 2020. However, the populations of D. antarctica are responding positively to these events, increasing in number and size throughout the Antarctic Peninsula. In this work, the physiological and biochemical responses of D. antarctica plants grown in vitro (15 ± 1°C) and plants subjected to two heat shock treatments (23 and 35°C) were evaluated. The results obtained show that D. antarctica grown in vitro is capable of tolerating heat shock treatments; without showing visible damage to its morphology, or changes in its oxidative state and photosynthetic performance. These tolerance responses are primarily mediated by the efficient role of enzymatic and non-enzymatic antioxidant systems that maintain redox balance at higher temperatures. It is postulated that these mechanisms also operate in plants under natural conditions when exposed to environmental stresses. Text Antarc* Antarctic Antarctic Peninsula Antarctica PubMed Central (PMC) Antarctic Antarctic Peninsula The Antarctic Frontiers in Plant Science 12 |
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English |
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Plant Science |
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Plant Science Cortés-Antiquera, Rodrigo Pizarro, Marisol Contreras, Rodrigo A. Köhler, Hans Zúñiga, Gustavo E. Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants |
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Plant Science |
description |
Deschampsia antarctica Desv, is the most successful colonizing species of a cold continent. In recent years due to climate change, the frequency of heat waves has increased in Antarctica, registering anomalous high temperatures during the summer of 2020. However, the populations of D. antarctica are responding positively to these events, increasing in number and size throughout the Antarctic Peninsula. In this work, the physiological and biochemical responses of D. antarctica plants grown in vitro (15 ± 1°C) and plants subjected to two heat shock treatments (23 and 35°C) were evaluated. The results obtained show that D. antarctica grown in vitro is capable of tolerating heat shock treatments; without showing visible damage to its morphology, or changes in its oxidative state and photosynthetic performance. These tolerance responses are primarily mediated by the efficient role of enzymatic and non-enzymatic antioxidant systems that maintain redox balance at higher temperatures. It is postulated that these mechanisms also operate in plants under natural conditions when exposed to environmental stresses. |
format |
Text |
author |
Cortés-Antiquera, Rodrigo Pizarro, Marisol Contreras, Rodrigo A. Köhler, Hans Zúñiga, Gustavo E. |
author_facet |
Cortés-Antiquera, Rodrigo Pizarro, Marisol Contreras, Rodrigo A. Köhler, Hans Zúñiga, Gustavo E. |
author_sort |
Cortés-Antiquera, Rodrigo |
title |
Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants |
title_short |
Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants |
title_full |
Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants |
title_fullStr |
Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants |
title_full_unstemmed |
Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants |
title_sort |
heat shock tolerance in deschampsia antarctica desv. cultivated in vitro is mediated by enzymatic and non-enzymatic antioxidants |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959801/ https://doi.org/10.3389/fpls.2021.635491 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_source |
Front Plant Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959801/ http://dx.doi.org/10.3389/fpls.2021.635491 |
op_rights |
Copyright © 2021 Cortés-Antiquera, Pizarro, Contreras, Köhler and Zúñiga. http://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. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fpls.2021.635491 |
container_title |
Frontiers in Plant Science |
container_volume |
12 |
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1766257191235354624 |