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Seaweed extract improve drought tolerance of soybean by regulating stress-response genes

There is an increasing global concern about the availability of water for agricultural use. Drought stress negatively impacts plant physiology and crop productivity. Soybean (Glycine max) is one of the important oilseed crops, and its productivity is often reduced by drought. In this study, a commer...

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Autores principales: Shukla, Pushp S, Shotton, Katy, Norman, Erin, Neily, Will, Critchley, Alan T, Prithiviraj, Balakrishnan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751077/
https://www.ncbi.nlm.nih.gov/pubmed/29308122
http://dx.doi.org/10.1093/aobpla/plx051
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author Shukla, Pushp S
Shotton, Katy
Norman, Erin
Neily, Will
Critchley, Alan T
Prithiviraj, Balakrishnan
author_facet Shukla, Pushp S
Shotton, Katy
Norman, Erin
Neily, Will
Critchley, Alan T
Prithiviraj, Balakrishnan
author_sort Shukla, Pushp S
collection PubMed
description There is an increasing global concern about the availability of water for agricultural use. Drought stress negatively impacts plant physiology and crop productivity. Soybean (Glycine max) is one of the important oilseed crops, and its productivity is often reduced by drought. In this study, a commercial extract of Ascophyllum nodosum (ANE) was evaluated for its potential to alleviate drought stress in soybean. The aim of this study was to determine the effects of ANE on the response of soybean plants to drought stress by monitoring stomatal conductance, relative leaf water content, antioxidant activity and expression of stress-responsive genes. Plants treated with ANE had higher relative water content and higher stomatal conductance under drought stress. During early recovery in the post-drought phase, ANE treated plants had significantly higher stomatal conductance. The antioxidant activity was also found higher in the plants treated with ANE. In addition, ANE-treatment led to changes in the expression of stress-responsive genes: GmCYP707A1a, GmCYP707A3b, GmRD22, GmRD20, GmDREB1B, GmERD1, GmNFYA3, FIB1a, GmPIP1b, GmGST, GmBIP and GmTp55. Taken together, these results suggest that applications of ANE improve the drought tolerance of soybean by changing physiology and gene expression.
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spelling pubmed-57510772018-01-05 Seaweed extract improve drought tolerance of soybean by regulating stress-response genes Shukla, Pushp S Shotton, Katy Norman, Erin Neily, Will Critchley, Alan T Prithiviraj, Balakrishnan AoB Plants Short Communication There is an increasing global concern about the availability of water for agricultural use. Drought stress negatively impacts plant physiology and crop productivity. Soybean (Glycine max) is one of the important oilseed crops, and its productivity is often reduced by drought. In this study, a commercial extract of Ascophyllum nodosum (ANE) was evaluated for its potential to alleviate drought stress in soybean. The aim of this study was to determine the effects of ANE on the response of soybean plants to drought stress by monitoring stomatal conductance, relative leaf water content, antioxidant activity and expression of stress-responsive genes. Plants treated with ANE had higher relative water content and higher stomatal conductance under drought stress. During early recovery in the post-drought phase, ANE treated plants had significantly higher stomatal conductance. The antioxidant activity was also found higher in the plants treated with ANE. In addition, ANE-treatment led to changes in the expression of stress-responsive genes: GmCYP707A1a, GmCYP707A3b, GmRD22, GmRD20, GmDREB1B, GmERD1, GmNFYA3, FIB1a, GmPIP1b, GmGST, GmBIP and GmTp55. Taken together, these results suggest that applications of ANE improve the drought tolerance of soybean by changing physiology and gene expression. Oxford University Press 2017-10-11 /pmc/articles/PMC5751077/ /pubmed/29308122 http://dx.doi.org/10.1093/aobpla/plx051 Text en © The Author(s) 2017. Published by Oxford University Press on behalf of the Annals of Botany Company. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Short Communication
Shukla, Pushp S
Shotton, Katy
Norman, Erin
Neily, Will
Critchley, Alan T
Prithiviraj, Balakrishnan
Seaweed extract improve drought tolerance of soybean by regulating stress-response genes
title Seaweed extract improve drought tolerance of soybean by regulating stress-response genes
title_full Seaweed extract improve drought tolerance of soybean by regulating stress-response genes
title_fullStr Seaweed extract improve drought tolerance of soybean by regulating stress-response genes
title_full_unstemmed Seaweed extract improve drought tolerance of soybean by regulating stress-response genes
title_short Seaweed extract improve drought tolerance of soybean by regulating stress-response genes
title_sort seaweed extract improve drought tolerance of soybean by regulating stress-response genes
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751077/
https://www.ncbi.nlm.nih.gov/pubmed/29308122
http://dx.doi.org/10.1093/aobpla/plx051
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