Hydrogen sulfide (H2S) and nitric oxide (NO) alleviate cobalt toxicity in wheat (Triticum aestivum L.) by modulating photosynthesis, chloroplastic redox and antioxidant capacity

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dc.contributor.authorOzfidan-Konakci, Ceyda
dc.contributor.authorYildiztugay, Evren
dc.contributor.authorElbasan, Fevzi
dc.contributor.authorKucukoduk, Mustafa
dc.contributor.authorTurkan, Ismail
dc.date.accessioned2024-02-23T14:12:50Z
dc.date.available2024-02-23T14:12:50Z
dc.date.issued2020
dc.departmentNEÜen_US
dc.description.abstractThe role of hydrogen sulfide (H2S)/nitric oxide (NO) in mitigating stress-induced damages has gained interest in the past few years. However, the protective mechanism H2S and/or NO has towards the chloroplast system through the regulation of redox status and activation of antioxidant capacity in cobalt-treated wheat remain largely unanswered. Triticum aestivum L. cv. Ekiz was treated with alone/in combination of a H2S donor (sodium hydrosulfide (NaHS,600 mu M)), a NO donor (sodium nitroprusside (SNP,100 mu M)) and a NO scavenger (rutin hydrate (RTN,50 mu M)) to assess how the donors affect growth, water relations, redox and antioxidant capacity in chloroplasts, under cobalt (Co) concentrations of 150-300 mu M. Stress decreased a number of parameters (growth, water content (RWC), osmotic potential (psi(Pi)), carbon assimilation rate, stomatal conductance, intercellular CO2 concentrations, transpiration rate and the transcript levels of rubisco, which subsequently disrupt the photosynthetic capacity). However, SNP/NaHS counteracted the negative effects of stress on these aforementioned parameters and RTN application with stress/non-stress was reversed these effects. Hydrogen peroxide (H2O2) and TBARS were induced under stress in spite of activated ascorbate peroxidase (APX). SNP/NaHS under stress increased activation of superoxide dismutase (SOD), peroxidase (POX), APX, glutathione reductase (GR), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), ascorbate (tAsA) and glutathione (GSH). In conclusion, NaHS/SNP are involved in the regulation and modification of growth, water content, rubisco activity and up-regulation of ascorbate-glutathione cycle (AsA-GSH) in chloroplast under stress.en_US
dc.description.sponsorshipSelcuk University Scientific Research Projects Coordinating Office [17401061]en_US
dc.description.sponsorshipWe are thankful to Bahri Dagdas International Agricultural Research Institute for providing the wheat seeds. For this study, NaHS was obtained from Yasemin Teksen, Assist. Prof. Dr. and we thank her for chemical support. The authors are also grateful to Assist. Prof. Dr. Nabeelah Bibi Sadeer from University of Mauritius for helpful comments to improve the manuscript. This work was supported by Selcuk University Scientific Research Projects Coordinating Office (Grant Number 17401061).en_US
dc.identifier.doi10.1016/j.jhazmat.2020.122061
dc.identifier.issn0304-3894
dc.identifier.issn1873-3336
dc.identifier.pmid31954305en_US
dc.identifier.scopus2-s2.0-85077751217en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jhazmat.2020.122061
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12204
dc.identifier.volume388en_US
dc.identifier.wosWOS:000524462500113en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal Of Hazardous Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAntioxidant Enzymeen_US
dc.subjectChloroplasten_US
dc.subjectHydrogen Sulfideen_US
dc.subjectNitric Oxideen_US
dc.subjectTriticum Aestivumen_US
dc.titleHydrogen sulfide (H2S) and nitric oxide (NO) alleviate cobalt toxicity in wheat (Triticum aestivum L.) by modulating photosynthesis, chloroplastic redox and antioxidant capacityen_US
dc.typeArticleen_US

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