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Physiological and Biochemical Parameters of Salinity Resistance of Three Durum Wheat Genotypes

The area of farming lands affected by increasing soil salinity is growing significantly worldwide. For this reason, breeding works are conducted to improve the salinity tolerance of important crop species. The goal of the present study was to indicate physiological or biochemical parameters characte...

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Autores principales: Pastuszak, Jakub, Dziurka, Michał, Hornyák, Marta, Szczerba, Anna, Kopeć, Przemysław, Płażek, Agnieszka
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369059/
https://www.ncbi.nlm.nih.gov/pubmed/35955532
http://dx.doi.org/10.3390/ijms23158397
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author Pastuszak, Jakub
Dziurka, Michał
Hornyák, Marta
Szczerba, Anna
Kopeć, Przemysław
Płażek, Agnieszka
author_facet Pastuszak, Jakub
Dziurka, Michał
Hornyák, Marta
Szczerba, Anna
Kopeć, Przemysław
Płażek, Agnieszka
author_sort Pastuszak, Jakub
collection PubMed
description The area of farming lands affected by increasing soil salinity is growing significantly worldwide. For this reason, breeding works are conducted to improve the salinity tolerance of important crop species. The goal of the present study was to indicate physiological or biochemical parameters characterizing three durum wheat accessions with various tolerance to salinity. The study was carried out on germinating seeds and mature plants of a Polish SMH87 line, an Australian cultivar ‘Tamaroi’ (salt-sensitive), and the BC(5)Nax(2) line (salt-tolerant) exposed to 0–150 mM NaCl. Germination parameters, electrolyte leakage (EL), and salt susceptibility index were determined in the germinating caryopses, whereas photosynthetic parameters, carbohydrate and phenolic content, antioxidant activity as well as yield were measured in fully developed plants. The parameters that most differentiated the examined accessions in the germination phase were the percentage of germinating seeds (PGS) and germination vigor (Vi). In the fully developed plants, parameters included whether the plants had the maximum efficiency of the water-splitting reaction on the donor side of photosystem II (PSII)–F(v)/F(0), energy dissipation from PSII–DI(o)/CS(m), and the content of photosynthetic pigments and hydrogen peroxide, which differentiated studied genotypes in terms of salinity tolerance degree. Salinity has a negative impact on grain yield by reducing the number of seeds per spike and the mass of one thousand seeds (MTS), which can be used as the most suitable parameter for determining tolerance to salinity stress. The most salt-tolerant BC(5)Nax(2) line was characterized by the highest PGS, and Vi for NaCl concentration of 100–150 mM, content of chlorophyll a, b, carotenoids, and also MTS at all applied salt concentrations as compared with the other accessions. The most salt-sensitive cv. ‘Tamaroi’ demonstrated higher H(2)O(2) concentration which proves considerable oxidative damage caused by salinity stress. Mentioned parameters can be helpful for breeders in the selection of genotypes the most resistant to this stress.
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spelling pubmed-93690592022-08-12 Physiological and Biochemical Parameters of Salinity Resistance of Three Durum Wheat Genotypes Pastuszak, Jakub Dziurka, Michał Hornyák, Marta Szczerba, Anna Kopeć, Przemysław Płażek, Agnieszka Int J Mol Sci Article The area of farming lands affected by increasing soil salinity is growing significantly worldwide. For this reason, breeding works are conducted to improve the salinity tolerance of important crop species. The goal of the present study was to indicate physiological or biochemical parameters characterizing three durum wheat accessions with various tolerance to salinity. The study was carried out on germinating seeds and mature plants of a Polish SMH87 line, an Australian cultivar ‘Tamaroi’ (salt-sensitive), and the BC(5)Nax(2) line (salt-tolerant) exposed to 0–150 mM NaCl. Germination parameters, electrolyte leakage (EL), and salt susceptibility index were determined in the germinating caryopses, whereas photosynthetic parameters, carbohydrate and phenolic content, antioxidant activity as well as yield were measured in fully developed plants. The parameters that most differentiated the examined accessions in the germination phase were the percentage of germinating seeds (PGS) and germination vigor (Vi). In the fully developed plants, parameters included whether the plants had the maximum efficiency of the water-splitting reaction on the donor side of photosystem II (PSII)–F(v)/F(0), energy dissipation from PSII–DI(o)/CS(m), and the content of photosynthetic pigments and hydrogen peroxide, which differentiated studied genotypes in terms of salinity tolerance degree. Salinity has a negative impact on grain yield by reducing the number of seeds per spike and the mass of one thousand seeds (MTS), which can be used as the most suitable parameter for determining tolerance to salinity stress. The most salt-tolerant BC(5)Nax(2) line was characterized by the highest PGS, and Vi for NaCl concentration of 100–150 mM, content of chlorophyll a, b, carotenoids, and also MTS at all applied salt concentrations as compared with the other accessions. The most salt-sensitive cv. ‘Tamaroi’ demonstrated higher H(2)O(2) concentration which proves considerable oxidative damage caused by salinity stress. Mentioned parameters can be helpful for breeders in the selection of genotypes the most resistant to this stress. MDPI 2022-07-29 /pmc/articles/PMC9369059/ /pubmed/35955532 http://dx.doi.org/10.3390/ijms23158397 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
Pastuszak, Jakub
Dziurka, Michał
Hornyák, Marta
Szczerba, Anna
Kopeć, Przemysław
Płażek, Agnieszka
Physiological and Biochemical Parameters of Salinity Resistance of Three Durum Wheat Genotypes
title Physiological and Biochemical Parameters of Salinity Resistance of Three Durum Wheat Genotypes
title_full Physiological and Biochemical Parameters of Salinity Resistance of Three Durum Wheat Genotypes
title_fullStr Physiological and Biochemical Parameters of Salinity Resistance of Three Durum Wheat Genotypes
title_full_unstemmed Physiological and Biochemical Parameters of Salinity Resistance of Three Durum Wheat Genotypes
title_short Physiological and Biochemical Parameters of Salinity Resistance of Three Durum Wheat Genotypes
title_sort physiological and biochemical parameters of salinity resistance of three durum wheat genotypes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369059/
https://www.ncbi.nlm.nih.gov/pubmed/35955532
http://dx.doi.org/10.3390/ijms23158397
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