Timing-dependent effects of salicylic acid treatment on phytohormonal changes, ROS regulation, and antioxidant defense in salinized barley (Hordeum vulgare L.)

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dc.authoridNovak, Ondrej/0000-0003-3452-0154
dc.authorwosidNovak, Ondrej/F-7031-2014
dc.authorwosidAyaz, Faik Ahmet/AAJ-9805-2021
dc.contributor.authorTorun, Hulya
dc.contributor.authorNovak, Ondrej
dc.contributor.authorMikulik, Jaromir
dc.contributor.authorPencik, Ales
dc.contributor.authorStrnad, Miroslav
dc.contributor.authorAyaz, Faik Ahmet
dc.date.accessioned2021-12-01T18:50:27Z
dc.date.available2021-12-01T18:50:27Z
dc.date.issued2020
dc.department[Belirlenecek]en_US
dc.description.abstractCross-talk between exogenous salicylic acid (SA) and endogenous phytohormone pathways affects the antioxidant defense system and its response to salt stress. The study presented here investigated the effects of SA treatment before and during salt stress on the levels of endogenous plant growth regulators in three barley cultivars with different salinity tolerances: Hordeum vulgare L. cvs. Akhisar (sensitive), Erginel (moderate), and Kalayc (tolerant). The cultivars' relative leaf water contents, growth parameters, proline contents, chlorophyll a/b ratios, and lipid peroxidation levels were measured, along with the activities of enzymes involved in detoxifying reactive oxygen species (ROS) including superoxide-dismutase, peroxidase, catalase, ascorbate-peroxidase, and glutathione-reductase. In addition, levels of several endogenous phytohormones (indole-3-acetic-acid, cytokinins, abscisic acid, jasmonic acid, and ethylene) were measured. Barley is known to be more salt tolerant than related plant species. Accordingly, none of the studied cultivars exhibited changes in membrane lipid peroxidation under salt stress. However, they responded differently to salt-stress with respect to their accumulation of phytohormones and antioxidant enzyme activity. The strongest and weakest increases in ABA and proline accumulation were observed in Kalayc and Akhisar, respectively, suggesting that salt-stress was more effectively managed in Kalayc. The effects of exogenous SA treatment depended on both the timing of the treatment and the cultivar to which it was applied. In general, however, where SA helped mitigate salt stress, it appeared to do so by increasing ROS scavenging capacity and antioxidant enzyme activity. SA treatment also induced changes in phytohormone levels, presumably as a consequence of SA-phytohormone salt-stress cross-talk.en_US
dc.description.sponsorshipInternal Grant Agency of Palacky University [IGA_PrF_ 2019_ 020]; European Regional Development Fund-Project Plants as a tool for sustainable global development [CZ. 02.1.01/0.0/0.0/16_019/0000827]en_US
dc.description.sponsorshipThis work was supported by the Internal Grant Agency of Palacky University N. IGA_PrF_ 2019_ 020 and from European Regional Development Fund-Project Plants as a tool for sustainable global development (No. CZ. 02.1.01/0.0/0.0/16_019/0000827). We would also like to thank to Sees-editing Ltd., U.K. for English editing of the manuscript.en_US
dc.identifier.doi10.1038/s41598-020-70807-3
dc.identifier.issn2045-2322
dc.identifier.issue1en_US
dc.identifier.pmid32807910en_US
dc.identifier.scopus2-s2.0-85089529111en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1038/s41598-020-70807-3
dc.identifier.urihttps://hdl.handle.net/20.500.12684/10878
dc.identifier.volume10en_US
dc.identifier.wosWOS:000563538600009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherNature Portfolioen_US
dc.relation.ispartofScientific Reportsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAbiotic Stress Toleranceen_US
dc.subjectAbscisic-Aciden_US
dc.subjectHydrogen-Peroxideen_US
dc.subjectOxidative Stressen_US
dc.subjectGene-Expressionen_US
dc.subjectSalt Stressen_US
dc.subjectLipid-Peroxidationen_US
dc.subjectCold-Acclimationen_US
dc.subjectWheat Cultivarsen_US
dc.subjectShoot Growthen_US
dc.titleTiming-dependent effects of salicylic acid treatment on phytohormonal changes, ROS regulation, and antioxidant defense in salinized barley (Hordeum vulgare L.)en_US
dc.typeArticleen_US

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