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The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency

Plants frequently experience hypoxia due to flooding caused by intensive rainfall or irrigation, when they are partially or completely submerged under a layer of water. In the latter case, some resistant plants implement a hypoxia avoidance strategy by accelerating shoot elongation, which allows lif...

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Autores principales: Kudoyarova, Guzel, Veselov, Dmitriy, Yemelyanov, Vladislav, Shishova, Maria
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9456501/
https://www.ncbi.nlm.nih.gov/pubmed/36077554
http://dx.doi.org/10.3390/ijms231710159
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author Kudoyarova, Guzel
Veselov, Dmitriy
Yemelyanov, Vladislav
Shishova, Maria
author_facet Kudoyarova, Guzel
Veselov, Dmitriy
Yemelyanov, Vladislav
Shishova, Maria
author_sort Kudoyarova, Guzel
collection PubMed
description Plants frequently experience hypoxia due to flooding caused by intensive rainfall or irrigation, when they are partially or completely submerged under a layer of water. In the latter case, some resistant plants implement a hypoxia avoidance strategy by accelerating shoot elongation, which allows lifting their leaves above the water surface. This strategy is achieved due to increased water uptake by shoot cells through water channels (aquaporins, AQPs). It remains a puzzle how an increased flow of water through aquaporins into the cells of submerged shoots can be achieved, while it is well known that hypoxia inhibits the activity of aquaporins. In this review, we summarize the literature data on the mechanisms that are likely to compensate for the decline in aquaporin activity under hypoxic conditions, providing increased water entry into cells and accelerated shoot elongation. These mechanisms include changes in the expression of genes encoding aquaporins, as well as processes that occur at the post-transcriptional level. We also discuss the involvement of hormones, whose concentration changes in submerged plants, in the control of aquaporin activity.
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spelling pubmed-94565012022-09-09 The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency Kudoyarova, Guzel Veselov, Dmitriy Yemelyanov, Vladislav Shishova, Maria Int J Mol Sci Review Plants frequently experience hypoxia due to flooding caused by intensive rainfall or irrigation, when they are partially or completely submerged under a layer of water. In the latter case, some resistant plants implement a hypoxia avoidance strategy by accelerating shoot elongation, which allows lifting their leaves above the water surface. This strategy is achieved due to increased water uptake by shoot cells through water channels (aquaporins, AQPs). It remains a puzzle how an increased flow of water through aquaporins into the cells of submerged shoots can be achieved, while it is well known that hypoxia inhibits the activity of aquaporins. In this review, we summarize the literature data on the mechanisms that are likely to compensate for the decline in aquaporin activity under hypoxic conditions, providing increased water entry into cells and accelerated shoot elongation. These mechanisms include changes in the expression of genes encoding aquaporins, as well as processes that occur at the post-transcriptional level. We also discuss the involvement of hormones, whose concentration changes in submerged plants, in the control of aquaporin activity. MDPI 2022-09-05 /pmc/articles/PMC9456501/ /pubmed/36077554 http://dx.doi.org/10.3390/ijms231710159 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Kudoyarova, Guzel
Veselov, Dmitriy
Yemelyanov, Vladislav
Shishova, Maria
The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency
title The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency
title_full The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency
title_fullStr The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency
title_full_unstemmed The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency
title_short The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency
title_sort role of aquaporins in plant growth under conditions of oxygen deficiency
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9456501/
https://www.ncbi.nlm.nih.gov/pubmed/36077554
http://dx.doi.org/10.3390/ijms231710159
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