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Regulation of Sulfur Homeostasis in Mycorrhizal Maize Plants Grown in a Fe-Limited Environment

Sulfur is an essential macronutrient for growth of higher plants. The entry of the sulfate anion into the plant, its importation into the plastids for assimilation, its long-distance transport through the vasculature, and its storage in the vacuoles require specific sulfate transporter proteins. In...

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Autores principales: Chorianopoulou, Styliani N., Sigalas, Petros P., Tsoutsoura, Niki, Apodiakou, Anastasia, Saridis, Georgios, Ventouris, Yannis E., Bouranis, Dimitris L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7247347/
https://www.ncbi.nlm.nih.gov/pubmed/32375343
http://dx.doi.org/10.3390/ijms21093249
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author Chorianopoulou, Styliani N.
Sigalas, Petros P.
Tsoutsoura, Niki
Apodiakou, Anastasia
Saridis, Georgios
Ventouris, Yannis E.
Bouranis, Dimitris L.
author_facet Chorianopoulou, Styliani N.
Sigalas, Petros P.
Tsoutsoura, Niki
Apodiakou, Anastasia
Saridis, Georgios
Ventouris, Yannis E.
Bouranis, Dimitris L.
author_sort Chorianopoulou, Styliani N.
collection PubMed
description Sulfur is an essential macronutrient for growth of higher plants. The entry of the sulfate anion into the plant, its importation into the plastids for assimilation, its long-distance transport through the vasculature, and its storage in the vacuoles require specific sulfate transporter proteins. In this study, mycorrhizal and non-mycorrhizal maize plants were grown for 60 days in an S-deprived substrate, whilst iron was provided to the plants in the sparingly soluble form of FePO(4). On day 60, sulfate was provided to the plants. The gene expression patterns of a number of sulfate transporters as well as sulfate assimilation enzymes were studied in leaves and roots of maize plants, both before as well as after sulfate supply. Prolonged sulfur deprivation resulted in a more or less uniform response of the genes’ expressions in the roots of non-mycorrhizal and mycorrhizal plants. This was not the case neither in the roots and leaves after the supply of sulfur, nor in the leaves of the plants during the S-deprived period of time. It is concluded that mycorrhizal symbiosis modified plant demands for reduced sulfur, regulating accordingly the uptake, distribution, and assimilation of the sulfate anion.
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spelling pubmed-72473472020-06-10 Regulation of Sulfur Homeostasis in Mycorrhizal Maize Plants Grown in a Fe-Limited Environment Chorianopoulou, Styliani N. Sigalas, Petros P. Tsoutsoura, Niki Apodiakou, Anastasia Saridis, Georgios Ventouris, Yannis E. Bouranis, Dimitris L. Int J Mol Sci Article Sulfur is an essential macronutrient for growth of higher plants. The entry of the sulfate anion into the plant, its importation into the plastids for assimilation, its long-distance transport through the vasculature, and its storage in the vacuoles require specific sulfate transporter proteins. In this study, mycorrhizal and non-mycorrhizal maize plants were grown for 60 days in an S-deprived substrate, whilst iron was provided to the plants in the sparingly soluble form of FePO(4). On day 60, sulfate was provided to the plants. The gene expression patterns of a number of sulfate transporters as well as sulfate assimilation enzymes were studied in leaves and roots of maize plants, both before as well as after sulfate supply. Prolonged sulfur deprivation resulted in a more or less uniform response of the genes’ expressions in the roots of non-mycorrhizal and mycorrhizal plants. This was not the case neither in the roots and leaves after the supply of sulfur, nor in the leaves of the plants during the S-deprived period of time. It is concluded that mycorrhizal symbiosis modified plant demands for reduced sulfur, regulating accordingly the uptake, distribution, and assimilation of the sulfate anion. MDPI 2020-05-04 /pmc/articles/PMC7247347/ /pubmed/32375343 http://dx.doi.org/10.3390/ijms21093249 Text en © 2020 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
Chorianopoulou, Styliani N.
Sigalas, Petros P.
Tsoutsoura, Niki
Apodiakou, Anastasia
Saridis, Georgios
Ventouris, Yannis E.
Bouranis, Dimitris L.
Regulation of Sulfur Homeostasis in Mycorrhizal Maize Plants Grown in a Fe-Limited Environment
title Regulation of Sulfur Homeostasis in Mycorrhizal Maize Plants Grown in a Fe-Limited Environment
title_full Regulation of Sulfur Homeostasis in Mycorrhizal Maize Plants Grown in a Fe-Limited Environment
title_fullStr Regulation of Sulfur Homeostasis in Mycorrhizal Maize Plants Grown in a Fe-Limited Environment
title_full_unstemmed Regulation of Sulfur Homeostasis in Mycorrhizal Maize Plants Grown in a Fe-Limited Environment
title_short Regulation of Sulfur Homeostasis in Mycorrhizal Maize Plants Grown in a Fe-Limited Environment
title_sort regulation of sulfur homeostasis in mycorrhizal maize plants grown in a fe-limited environment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7247347/
https://www.ncbi.nlm.nih.gov/pubmed/32375343
http://dx.doi.org/10.3390/ijms21093249
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