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The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview
In plants, there is a complex and multilevel network of the antioxidative system (AOS) operating to counteract harmful reactive species (RS), the foremost important of which are reactive oxygen species (ROS), and maintain homeostasis within the cell. Specific AOSs for plant cells are, first and fore...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7815643/ https://www.ncbi.nlm.nih.gov/pubmed/33488637 http://dx.doi.org/10.3389/fpls.2020.552969 |
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author | Dumanović, Jelena Nepovimova, Eugenie Natić, Maja Kuča, Kamil Jaćević, Vesna |
author_facet | Dumanović, Jelena Nepovimova, Eugenie Natić, Maja Kuča, Kamil Jaćević, Vesna |
author_sort | Dumanović, Jelena |
collection | PubMed |
description | In plants, there is a complex and multilevel network of the antioxidative system (AOS) operating to counteract harmful reactive species (RS), the foremost important of which are reactive oxygen species (ROS), and maintain homeostasis within the cell. Specific AOSs for plant cells are, first and foremost, enzymes of the glutathione-ascorbate cycle (Asc-GSH), followed by phenolic compounds and lipophilic antioxidants like carotenoids and tocopherols. Evidence that plant cells have excellent antioxidative defense systems is their ability to survive at H(2)O(2) concentrations incompatible with animal cell life. For the survival of stressed plants, it is of particular importance that AOS cooperate and participate in redox reactions, therefore, providing better protection and regeneration of the active reduced forms. Considering that plants abound in antioxidant compounds, and humans are not predisposed to synthesize the majority of them, new fields of research have emerged. Antioxidant potential of plant compounds has been exploited for anti-aging formulations preparation, food fortification and preservation but also in designing new therapies for diseases with oxidative stress implicated in etiology. |
format | Online Article Text |
id | pubmed-7815643 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-78156432021-01-21 The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview Dumanović, Jelena Nepovimova, Eugenie Natić, Maja Kuča, Kamil Jaćević, Vesna Front Plant Sci Plant Science In plants, there is a complex and multilevel network of the antioxidative system (AOS) operating to counteract harmful reactive species (RS), the foremost important of which are reactive oxygen species (ROS), and maintain homeostasis within the cell. Specific AOSs for plant cells are, first and foremost, enzymes of the glutathione-ascorbate cycle (Asc-GSH), followed by phenolic compounds and lipophilic antioxidants like carotenoids and tocopherols. Evidence that plant cells have excellent antioxidative defense systems is their ability to survive at H(2)O(2) concentrations incompatible with animal cell life. For the survival of stressed plants, it is of particular importance that AOS cooperate and participate in redox reactions, therefore, providing better protection and regeneration of the active reduced forms. Considering that plants abound in antioxidant compounds, and humans are not predisposed to synthesize the majority of them, new fields of research have emerged. Antioxidant potential of plant compounds has been exploited for anti-aging formulations preparation, food fortification and preservation but also in designing new therapies for diseases with oxidative stress implicated in etiology. Frontiers Media S.A. 2021-01-06 /pmc/articles/PMC7815643/ /pubmed/33488637 http://dx.doi.org/10.3389/fpls.2020.552969 Text en Copyright © 2021 Dumanović, Nepovimova, Natić, Kuča and Jaćević. 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. |
spellingShingle | Plant Science Dumanović, Jelena Nepovimova, Eugenie Natić, Maja Kuča, Kamil Jaćević, Vesna The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview |
title | The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview |
title_full | The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview |
title_fullStr | The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview |
title_full_unstemmed | The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview |
title_short | The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview |
title_sort | significance of reactive oxygen species and antioxidant defense system in plants: a concise overview |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7815643/ https://www.ncbi.nlm.nih.gov/pubmed/33488637 http://dx.doi.org/10.3389/fpls.2020.552969 |
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