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The Ameliorative Effect of Silicon on Maize Plants Grown in Mg-Deficient Conditions

The importance of magnesium (Mg) for plant growth is well-documented. Silicon (Si)-mediated alleviation of mineral deficiencies has been also reported in a number of plant species; however, there is no report on the relevance of Si nutrition in plants grown in Mg-deficient condition. Therefore, in t...

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Autores principales: Hosseini, Seyed Abdollah, Naseri Rad, Sara, Ali, Nusrat, Yvin, Jean-Claude
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412671/
https://www.ncbi.nlm.nih.gov/pubmed/30813370
http://dx.doi.org/10.3390/ijms20040969
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author Hosseini, Seyed Abdollah
Naseri Rad, Sara
Ali, Nusrat
Yvin, Jean-Claude
author_facet Hosseini, Seyed Abdollah
Naseri Rad, Sara
Ali, Nusrat
Yvin, Jean-Claude
author_sort Hosseini, Seyed Abdollah
collection PubMed
description The importance of magnesium (Mg) for plant growth is well-documented. Silicon (Si)-mediated alleviation of mineral deficiencies has been also reported in a number of plant species; however, there is no report on the relevance of Si nutrition in plants grown in Mg-deficient condition. Therefore, in the present work, an attempt was undertaken to study the role of Si nutrition in maize plants exposed to Mg deficiency. Plants were grown either under low (0.02 mM) or normal (0.5 mM) levels of Mg, with or without Si supplement. We have shown that Mg-deficient plants treated with Si maintained their growth and increased significantly the levels of chlorophyll and soluble sugars compared to those plants which did not receive Si. In addition, the concentrations of hexose-P, and glycolytic intermediate metabolites—mainly organic acids (isocitric and glutamic acids)—were increased in response to Si nutrition, which was associated with an increase in the levels of stress amino acids such as gamma-aminobutyric-acid (GABA), serine and glycine, as well as polyamines putrescine, which overall contributed to Mg stress tolerance. In addition, Si enhanced the levels of phytohormones cytokinin iso-pentenyladenine (IP), iso-pentenyladenine riboside (IPR), jasmonic acid (JA) and its derivate l-isoleucine (JA-ILE). The increase in cytokinin maintained the growth of Mg-deficient plants, while JA and JA-IEA were induced in response to carbohydrates accumulation. Altogether, our study reveals the vital role of Si under Mg deficiency by regulating plant primary metabolite and hormonal changes.
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spelling pubmed-64126712019-04-05 The Ameliorative Effect of Silicon on Maize Plants Grown in Mg-Deficient Conditions Hosseini, Seyed Abdollah Naseri Rad, Sara Ali, Nusrat Yvin, Jean-Claude Int J Mol Sci Article The importance of magnesium (Mg) for plant growth is well-documented. Silicon (Si)-mediated alleviation of mineral deficiencies has been also reported in a number of plant species; however, there is no report on the relevance of Si nutrition in plants grown in Mg-deficient condition. Therefore, in the present work, an attempt was undertaken to study the role of Si nutrition in maize plants exposed to Mg deficiency. Plants were grown either under low (0.02 mM) or normal (0.5 mM) levels of Mg, with or without Si supplement. We have shown that Mg-deficient plants treated with Si maintained their growth and increased significantly the levels of chlorophyll and soluble sugars compared to those plants which did not receive Si. In addition, the concentrations of hexose-P, and glycolytic intermediate metabolites—mainly organic acids (isocitric and glutamic acids)—were increased in response to Si nutrition, which was associated with an increase in the levels of stress amino acids such as gamma-aminobutyric-acid (GABA), serine and glycine, as well as polyamines putrescine, which overall contributed to Mg stress tolerance. In addition, Si enhanced the levels of phytohormones cytokinin iso-pentenyladenine (IP), iso-pentenyladenine riboside (IPR), jasmonic acid (JA) and its derivate l-isoleucine (JA-ILE). The increase in cytokinin maintained the growth of Mg-deficient plants, while JA and JA-IEA were induced in response to carbohydrates accumulation. Altogether, our study reveals the vital role of Si under Mg deficiency by regulating plant primary metabolite and hormonal changes. MDPI 2019-02-22 /pmc/articles/PMC6412671/ /pubmed/30813370 http://dx.doi.org/10.3390/ijms20040969 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hosseini, Seyed Abdollah
Naseri Rad, Sara
Ali, Nusrat
Yvin, Jean-Claude
The Ameliorative Effect of Silicon on Maize Plants Grown in Mg-Deficient Conditions
title The Ameliorative Effect of Silicon on Maize Plants Grown in Mg-Deficient Conditions
title_full The Ameliorative Effect of Silicon on Maize Plants Grown in Mg-Deficient Conditions
title_fullStr The Ameliorative Effect of Silicon on Maize Plants Grown in Mg-Deficient Conditions
title_full_unstemmed The Ameliorative Effect of Silicon on Maize Plants Grown in Mg-Deficient Conditions
title_short The Ameliorative Effect of Silicon on Maize Plants Grown in Mg-Deficient Conditions
title_sort ameliorative effect of silicon on maize plants grown in mg-deficient conditions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412671/
https://www.ncbi.nlm.nih.gov/pubmed/30813370
http://dx.doi.org/10.3390/ijms20040969
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