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Improving wheat (Triticum aestivum L.) antioxidative defense mechanisms against salinity stress by exogenous application of potassium silicate

dc.contributor.authorFeghhenabi, Faride
dc.contributor.authorHadi, Hashem
dc.contributor.authorKhodaverdiloo, Habib
dc.contributor.authorvan Genuchten, Martinus Th. [UNESP]
dc.contributor.authorPessarakli, Mohammad
dc.contributor.institutionUrmia University
dc.contributor.institutionUtrecht University
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionThe University of Arizona
dc.date.accessioned2023-03-01T20:12:01Z
dc.date.available2023-03-01T20:12:01Z
dc.date.issued2022-01-01
dc.description.abstractThe primary objective of this study was to investigate the beneficial effects of seed priming and foliar spray of potassium silicate on antioxidant activities under different salinity levels, thereby potentially improving wheat growth. Seeds were soaked into solutions containing potassium silicate (K2SiO3, 1.5 mM) for 6 h, while foliar spray with K2SiO3 (4 mM) was applied at the early and the late stages of tillering. Lake Urmia water was used to prepare salinity levels of 0, 3, 5, 8, 10, 12, and 14 dS m −1. For such traits as anthocyanin, catalase, ascorbate peroxidase, guaiacol peroxidase, and superoxide dismutase activity, an initial increase was observed at lower salinity levels; higher salinities subsequently decreased these traits or they remained mostly constant. Salinity also increased phenol, malondialdehyde, hydrogen peroxide, and polyphenol oxidase, but decreased flavonoid, nitrate content, and nitrate reductase activity. Seed priming and foliar spray provided effective approaches to reduce reactive oxygen species (ROS) manifestation in wheat grown under saline conditions. The improved antioxidant defense abilities by seed priming and foliar spray alleviated the oxidative damage of proteins and lipids and improved nitrate content and nitrate reductase activity.en
dc.description.affiliationDepartment of Plant Production and Genetics Urmia University
dc.description.affiliationDepartment of Soil Science Urmia University
dc.description.affiliationDepartment of Earth Sciences Utrecht University
dc.description.affiliationCenter for Environmental Studies CEA São Paulo State University UNESP
dc.description.affiliationSchool of Plant Sciences College of Agriculture and Life Sciences The University of Arizona
dc.description.affiliationUnespCenter for Environmental Studies CEA São Paulo State University UNESP
dc.identifierhttp://dx.doi.org/10.1080/01904167.2022.2067776
dc.identifier.citationJournal of Plant Nutrition.
dc.identifier.doi10.1080/01904167.2022.2067776
dc.identifier.issn1532-4087
dc.identifier.issn0190-4167
dc.identifier.scopus2-s2.0-85132659017
dc.identifier.urihttp://hdl.handle.net/11449/240323
dc.language.isoeng
dc.relation.ispartofJournal of Plant Nutrition
dc.sourceScopus
dc.subjectAntioxidants
dc.subjectfoliar spray
dc.subjectradical scavenging
dc.subjectsalinity stress
dc.subjectseed priming
dc.titleImproving wheat (Triticum aestivum L.) antioxidative defense mechanisms against salinity stress by exogenous application of potassium silicateen
dc.typeArtigopt
dspace.entity.typePublication
unesp.author.orcid0000-0003-1436-174X[3]
unesp.author.orcid0000-0003-1654-8858[4]
unesp.author.orcid0000-0002-7662-2258[5]
unesp.campusUniversidade Estadual Paulista (UNESP), Centro de Estudos Ambientais, Rio Claropt

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