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Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana
Reactive oxygen species (ROS), a type of oxygen monoelectronic reduction product, have a higher chemical activity than O(2). Although ROS pose potential risks to all organisms via inducing oxidative stress, indispensable role of ROS in individual development cannot be ignored. Among them, the role o...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7525048/ https://www.ncbi.nlm.nih.gov/pubmed/33042167 http://dx.doi.org/10.3389/fpls.2020.485932 |
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author | Zhou, Xuemei Xiang, Yu Li, Chenglong Yu, Guanghui |
author_facet | Zhou, Xuemei Xiang, Yu Li, Chenglong Yu, Guanghui |
author_sort | Zhou, Xuemei |
collection | PubMed |
description | Reactive oxygen species (ROS), a type of oxygen monoelectronic reduction product, have a higher chemical activity than O(2). Although ROS pose potential risks to all organisms via inducing oxidative stress, indispensable role of ROS in individual development cannot be ignored. Among them, the role of ROS in the model plant Arabidopsis thaliana is deeply studied. Mounting evidence suggests that ROS are essential for root and root hair development. In the present review, we provide an updated perspective on the latest research progress pertaining to the role of ROS in the precise regulation of root stem cell maintenance and differentiation, redox regulation of the cell cycle, and root hair initiation during root growth. Among the different types of ROS, O(2) (•−) and H(2)O(2) have been extensively investigated, and they exhibit different gradient distributions in the roots. The concentration of O(2) (•−) decreases along a gradient from the meristem to the transition zone and the concentration of H(2)O(2) decreases along a gradient from the differentiation zone to the elongation zone. These gradients are regulated by peroxidases, which are modulated by the UPBEAT1 (UPB1) transcription factor. In addition, multiple transcriptional factors, such as APP1, ABO8, PHB3, and RITF1, which are involved in the brassinolide signaling pathway, converge as a ROS signal to regulate root stem cell maintenance. Furthermore, superoxide anions (O(2) (•−)) are generated from the oxidation in mitochondria, ROS produced during plasmid metabolism, H(2)O(2) produced in apoplasts, and catalysis of respiratory burst oxidase homolog (RBOH) in the cell membrane. Furthermore, ROS can act as a signal to regulate redox status, which regulates the expression of the cell-cycle components CYC2;3, CYCB1;1, and retinoblastoma-related protein, thereby controlling the cell-cycle progression. In the root maturation zone, the epidermal cells located in the H cell position emerge to form hair cells, and plant hormones, such as auxin and ethylene regulate root hair formation via ROS. Furthermore, ROS accumulation can influence hormone signal transduction and vice versa. Data about the association between nutrient stress and ROS signals in root hair development are scarce. However, the fact that ROBHC/RHD2 or RHD6 is specifically expressed in root hair cells and induced by nutrients, may explain the relationship. Future studies should focus on the regulatory mechanisms underlying root hair development via the interactions of ROS with hormone signals and nutrient components. |
format | Online Article Text |
id | pubmed-7525048 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-75250482020-10-09 Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana Zhou, Xuemei Xiang, Yu Li, Chenglong Yu, Guanghui Front Plant Sci Plant Science Reactive oxygen species (ROS), a type of oxygen monoelectronic reduction product, have a higher chemical activity than O(2). Although ROS pose potential risks to all organisms via inducing oxidative stress, indispensable role of ROS in individual development cannot be ignored. Among them, the role of ROS in the model plant Arabidopsis thaliana is deeply studied. Mounting evidence suggests that ROS are essential for root and root hair development. In the present review, we provide an updated perspective on the latest research progress pertaining to the role of ROS in the precise regulation of root stem cell maintenance and differentiation, redox regulation of the cell cycle, and root hair initiation during root growth. Among the different types of ROS, O(2) (•−) and H(2)O(2) have been extensively investigated, and they exhibit different gradient distributions in the roots. The concentration of O(2) (•−) decreases along a gradient from the meristem to the transition zone and the concentration of H(2)O(2) decreases along a gradient from the differentiation zone to the elongation zone. These gradients are regulated by peroxidases, which are modulated by the UPBEAT1 (UPB1) transcription factor. In addition, multiple transcriptional factors, such as APP1, ABO8, PHB3, and RITF1, which are involved in the brassinolide signaling pathway, converge as a ROS signal to regulate root stem cell maintenance. Furthermore, superoxide anions (O(2) (•−)) are generated from the oxidation in mitochondria, ROS produced during plasmid metabolism, H(2)O(2) produced in apoplasts, and catalysis of respiratory burst oxidase homolog (RBOH) in the cell membrane. Furthermore, ROS can act as a signal to regulate redox status, which regulates the expression of the cell-cycle components CYC2;3, CYCB1;1, and retinoblastoma-related protein, thereby controlling the cell-cycle progression. In the root maturation zone, the epidermal cells located in the H cell position emerge to form hair cells, and plant hormones, such as auxin and ethylene regulate root hair formation via ROS. Furthermore, ROS accumulation can influence hormone signal transduction and vice versa. Data about the association between nutrient stress and ROS signals in root hair development are scarce. However, the fact that ROBHC/RHD2 or RHD6 is specifically expressed in root hair cells and induced by nutrients, may explain the relationship. Future studies should focus on the regulatory mechanisms underlying root hair development via the interactions of ROS with hormone signals and nutrient components. Frontiers Media S.A. 2020-09-16 /pmc/articles/PMC7525048/ /pubmed/33042167 http://dx.doi.org/10.3389/fpls.2020.485932 Text en Copyright © 2020 Zhou, Xiang, Li and Yu 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 Zhou, Xuemei Xiang, Yu Li, Chenglong Yu, Guanghui Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana |
title | Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana
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title_full | Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana
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title_fullStr | Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana
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title_full_unstemmed | Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana
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title_short | Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana
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title_sort | modulatory role of reactive oxygen species in root development in model plant of arabidopsis thaliana |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7525048/ https://www.ncbi.nlm.nih.gov/pubmed/33042167 http://dx.doi.org/10.3389/fpls.2020.485932 |
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