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Ameliorative Effects of Silicon against Salt Stress in Gossypium hirsutum L.

Silicon (Si) could alleviate the adverse effect of salinity in many crops, but the effect in cotton remains unclear. In this study, we evaluated the role of Si in regulating the salt stress tolerance of cotton by analyzing the induced morpho-physiological changes. A hydroponic experiment was conduct...

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Autores principales: Li, Leilei, Qi, Qian, Zhang, Hengheng, Dong, Qiang, Iqbal, Asif, Gui, Huiping, Kayoumu, Mirezhatijiang, Song, Meizhen, Zhang, Xiling, Wang, Xiangru
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9404900/
https://www.ncbi.nlm.nih.gov/pubmed/36009240
http://dx.doi.org/10.3390/antiox11081520
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author Li, Leilei
Qi, Qian
Zhang, Hengheng
Dong, Qiang
Iqbal, Asif
Gui, Huiping
Kayoumu, Mirezhatijiang
Song, Meizhen
Zhang, Xiling
Wang, Xiangru
author_facet Li, Leilei
Qi, Qian
Zhang, Hengheng
Dong, Qiang
Iqbal, Asif
Gui, Huiping
Kayoumu, Mirezhatijiang
Song, Meizhen
Zhang, Xiling
Wang, Xiangru
author_sort Li, Leilei
collection PubMed
description Silicon (Si) could alleviate the adverse effect of salinity in many crops, but the effect in cotton remains unclear. In this study, we evaluated the role of Si in regulating the salt stress tolerance of cotton by analyzing the induced morpho-physiological changes. A hydroponic experiment was conducted by using contrasting salt-tolerant cotton genotypes (sensitive Z0102; tolerant Z9807) and four treatments (CK, control; CKSi, 0.4 mM Si; NaCl, 150 mM NaCl; NaClSi, 150 mM NaCl+0.4 mM Si). The results showed that Si significantly enhanced the net photosynthesis rate and improved the growth of cotton seedling under salt stress in both salt-sensitive and salt-tolerant genotypes. Exogenous Si significantly reduced the accumulation of reactive oxygen species (ROS) and decreased the malondialdehyde (MDA) content in salt-stressed cotton. In addition, the application of Si up-regulated the expression of CAT1, SODCC and POD, and significantly enhanced the antioxidant enzymatic activities, such as catalase (CAT) and peroxidase (POD), of the salt-stressed cotton seedlings. Further, Si addition protected the integrity of the chloroplast ultrastructure, including key enzymes in photosynthesis such as ferredoxin-NADP reeducates (FNR), ATP synthase (Mg(2+)Ca(2+)-ATPase) and ribulose-1, 5-bisphosphate carboxylase/oxygenase (RubisCO), and the structure and function of the photosynthetic apparatus PSII from salt stress. Moreover, Si significantly increased the effective stomatal density and stomatal aperture in the salt-stressed cotton seedlings. Taken together, Si could likely ameliorate adverse effects of salt stress on cotton by improving the ROS scavenging ability and photosynthetic capacity.
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spelling pubmed-94049002022-08-26 Ameliorative Effects of Silicon against Salt Stress in Gossypium hirsutum L. Li, Leilei Qi, Qian Zhang, Hengheng Dong, Qiang Iqbal, Asif Gui, Huiping Kayoumu, Mirezhatijiang Song, Meizhen Zhang, Xiling Wang, Xiangru Antioxidants (Basel) Article Silicon (Si) could alleviate the adverse effect of salinity in many crops, but the effect in cotton remains unclear. In this study, we evaluated the role of Si in regulating the salt stress tolerance of cotton by analyzing the induced morpho-physiological changes. A hydroponic experiment was conducted by using contrasting salt-tolerant cotton genotypes (sensitive Z0102; tolerant Z9807) and four treatments (CK, control; CKSi, 0.4 mM Si; NaCl, 150 mM NaCl; NaClSi, 150 mM NaCl+0.4 mM Si). The results showed that Si significantly enhanced the net photosynthesis rate and improved the growth of cotton seedling under salt stress in both salt-sensitive and salt-tolerant genotypes. Exogenous Si significantly reduced the accumulation of reactive oxygen species (ROS) and decreased the malondialdehyde (MDA) content in salt-stressed cotton. In addition, the application of Si up-regulated the expression of CAT1, SODCC and POD, and significantly enhanced the antioxidant enzymatic activities, such as catalase (CAT) and peroxidase (POD), of the salt-stressed cotton seedlings. Further, Si addition protected the integrity of the chloroplast ultrastructure, including key enzymes in photosynthesis such as ferredoxin-NADP reeducates (FNR), ATP synthase (Mg(2+)Ca(2+)-ATPase) and ribulose-1, 5-bisphosphate carboxylase/oxygenase (RubisCO), and the structure and function of the photosynthetic apparatus PSII from salt stress. Moreover, Si significantly increased the effective stomatal density and stomatal aperture in the salt-stressed cotton seedlings. Taken together, Si could likely ameliorate adverse effects of salt stress on cotton by improving the ROS scavenging ability and photosynthetic capacity. MDPI 2022-08-04 /pmc/articles/PMC9404900/ /pubmed/36009240 http://dx.doi.org/10.3390/antiox11081520 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 Article
Li, Leilei
Qi, Qian
Zhang, Hengheng
Dong, Qiang
Iqbal, Asif
Gui, Huiping
Kayoumu, Mirezhatijiang
Song, Meizhen
Zhang, Xiling
Wang, Xiangru
Ameliorative Effects of Silicon against Salt Stress in Gossypium hirsutum L.
title Ameliorative Effects of Silicon against Salt Stress in Gossypium hirsutum L.
title_full Ameliorative Effects of Silicon against Salt Stress in Gossypium hirsutum L.
title_fullStr Ameliorative Effects of Silicon against Salt Stress in Gossypium hirsutum L.
title_full_unstemmed Ameliorative Effects of Silicon against Salt Stress in Gossypium hirsutum L.
title_short Ameliorative Effects of Silicon against Salt Stress in Gossypium hirsutum L.
title_sort ameliorative effects of silicon against salt stress in gossypium hirsutum l.
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9404900/
https://www.ncbi.nlm.nih.gov/pubmed/36009240
http://dx.doi.org/10.3390/antiox11081520
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