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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Online Access: | http://dx.doi.org/10.3389/fpls.2021.635491 https://www.frontiersin.org/articles/10.3389/fpls.2021.635491/full |
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crfrontiers:10.3389/fpls.2021.635491 2024-02-11T09:57:48+01:00 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 Zú�iga, Gustavo E. 2021 http://dx.doi.org/10.3389/fpls.2021.635491 https://www.frontiersin.org/articles/10.3389/fpls.2021.635491/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Plant Science volume 12 ISSN 1664-462X Plant Science journal-article 2021 crfrontiers https://doi.org/10.3389/fpls.2021.635491 2024-01-26T10:01:37Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Frontiers (Publisher) Antarctic Antarctic Peninsula The Antarctic Frontiers in Plant Science 12 |
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Plant Science |
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Plant Science Cortés-Antiquera, Rodrigo Pizarro, Marisol Contreras, Rodrigo A. Köhler, Hans Zú�iga, Gustavo E. Heat Shock Tolerance in Deschampsia antarctica Desv. Cultivated in vitro Is Mediated by Enzymatic and Non-enzymatic Antioxidants |
topic_facet |
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 |
Article in Journal/Newspaper |
author |
Cortés-Antiquera, Rodrigo Pizarro, Marisol Contreras, Rodrigo A. Köhler, Hans Zú�iga, Gustavo E. |
author_facet |
Cortés-Antiquera, Rodrigo Pizarro, Marisol Contreras, Rodrigo A. Köhler, Hans Zú�iga, 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 SA |
publishDate |
2021 |
url |
http://dx.doi.org/10.3389/fpls.2021.635491 https://www.frontiersin.org/articles/10.3389/fpls.2021.635491/full |
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 |
Frontiers in Plant Science volume 12 ISSN 1664-462X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fpls.2021.635491 |
container_title |
Frontiers in Plant Science |
container_volume |
12 |
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1790593341766762496 |