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Water Stress Inhibits Germination While Maintaining Embryo Viability of Subtropical Wetland Seeds: A Functional Approach With Phylogenetic Contrasts

Wetland species commonly exhibit a range of strategies to cope with water stress, either through drought tolerance or through avoidance of the period of limited water availability. Natural populations provide a genetic resource for ecological remediation and may also have direct economic value. We i...

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Autores principales: Bhatt, Arvind, Daibes, L. Felipe, Gallacher, David J., Jarma-Orozco, Alfredo, Pompelli, Marcelo F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9194686/
https://www.ncbi.nlm.nih.gov/pubmed/35712590
http://dx.doi.org/10.3389/fpls.2022.906771
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author Bhatt, Arvind
Daibes, L. Felipe
Gallacher, David J.
Jarma-Orozco, Alfredo
Pompelli, Marcelo F.
author_facet Bhatt, Arvind
Daibes, L. Felipe
Gallacher, David J.
Jarma-Orozco, Alfredo
Pompelli, Marcelo F.
author_sort Bhatt, Arvind
collection PubMed
description Wetland species commonly exhibit a range of strategies to cope with water stress, either through drought tolerance or through avoidance of the period of limited water availability. Natural populations provide a genetic resource for ecological remediation and may also have direct economic value. We investigated the effects of drought stress on the seed germination of wetland species. Nineteen species were germinated in four concentrations of polyethylene glycol 6000 (PEG) and were evaluated daily (12-h light photoperiod) or after 35 days (continuous darkness) to determine seed germination under water stress. Germination percentage decreased with an increase in polyethylene glycol 6000 (PEG) concentration, but species’ germination response to PEG concentration varied significantly. Seeds recovered their germinability after the alleviation of water stress, but the extent of recovery was species-dependent.
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spelling pubmed-91946862022-06-15 Water Stress Inhibits Germination While Maintaining Embryo Viability of Subtropical Wetland Seeds: A Functional Approach With Phylogenetic Contrasts Bhatt, Arvind Daibes, L. Felipe Gallacher, David J. Jarma-Orozco, Alfredo Pompelli, Marcelo F. Front Plant Sci Plant Science Wetland species commonly exhibit a range of strategies to cope with water stress, either through drought tolerance or through avoidance of the period of limited water availability. Natural populations provide a genetic resource for ecological remediation and may also have direct economic value. We investigated the effects of drought stress on the seed germination of wetland species. Nineteen species were germinated in four concentrations of polyethylene glycol 6000 (PEG) and were evaluated daily (12-h light photoperiod) or after 35 days (continuous darkness) to determine seed germination under water stress. Germination percentage decreased with an increase in polyethylene glycol 6000 (PEG) concentration, but species’ germination response to PEG concentration varied significantly. Seeds recovered their germinability after the alleviation of water stress, but the extent of recovery was species-dependent. Frontiers Media S.A. 2022-05-31 /pmc/articles/PMC9194686/ /pubmed/35712590 http://dx.doi.org/10.3389/fpls.2022.906771 Text en Copyright © 2022 Bhatt, Daibes, Gallacher, Jarma-Orozco and Pompelli. https://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
Bhatt, Arvind
Daibes, L. Felipe
Gallacher, David J.
Jarma-Orozco, Alfredo
Pompelli, Marcelo F.
Water Stress Inhibits Germination While Maintaining Embryo Viability of Subtropical Wetland Seeds: A Functional Approach With Phylogenetic Contrasts
title Water Stress Inhibits Germination While Maintaining Embryo Viability of Subtropical Wetland Seeds: A Functional Approach With Phylogenetic Contrasts
title_full Water Stress Inhibits Germination While Maintaining Embryo Viability of Subtropical Wetland Seeds: A Functional Approach With Phylogenetic Contrasts
title_fullStr Water Stress Inhibits Germination While Maintaining Embryo Viability of Subtropical Wetland Seeds: A Functional Approach With Phylogenetic Contrasts
title_full_unstemmed Water Stress Inhibits Germination While Maintaining Embryo Viability of Subtropical Wetland Seeds: A Functional Approach With Phylogenetic Contrasts
title_short Water Stress Inhibits Germination While Maintaining Embryo Viability of Subtropical Wetland Seeds: A Functional Approach With Phylogenetic Contrasts
title_sort water stress inhibits germination while maintaining embryo viability of subtropical wetland seeds: a functional approach with phylogenetic contrasts
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9194686/
https://www.ncbi.nlm.nih.gov/pubmed/35712590
http://dx.doi.org/10.3389/fpls.2022.906771
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