Polyamine, 1,3-diaminopropane, regulates defence responses on growth, gas exchange, PSII photochemistry and antioxidant system in wheat under arsenic toxicity

dc.contributor.authorGulenturk, Cagri
dc.contributor.authorAlp-Turgut, Fatma Nur
dc.contributor.authorArikan, Busra
dc.contributor.authorTofan, Aysenur
dc.contributor.authorOzfidan-Konakci, Ceyda
dc.contributor.authorYildiztugay, Evren
dc.date.accessioned2024-02-23T14:13:36Z
dc.date.available2024-02-23T14:13:36Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractThe metalloid arsenic (As) is extremely hazardous to all living organisms, including plants. Pollution with As is very detrimental to the photosynthetic machinery, cell division, energy generation, and redox status. In order to cope with stress, the use of growth regulators such as polyamines (PA), which strengthen the antioxidant system of plants, has become widespread in recent years. PAs can modulate the plant growth through basic mechanisms common to all living organisms, such as membrane stabilization, free radical scavenging, deoxyribonucleic acid (DNA), ribonucleic acid (RNA) and protein synthesis, enzyme activities and second messengers. However, the effect of 1,3-diaminopropane (Dap), which is a product of PA catabolism, is not clear enough in plants exposed to As toxicity. In the current study, the different concentrations of 1,3-diaminopropane (0.1, 0.5 and 1 mM Dap) were hydroponically treated to wheat (Triticum aestivum) under arsenic stress (100 & mu;M As) and then relative growth rate (RGR), relative water content (RWC), proline content (Pro), gas exchange parameters, PSII photo-chemistry, chlorophyll fluorescence kinetics, antioxidant activity and lipid peroxidation were assessed. RGR, RWC, osmotic potential and Pro content decreased in As-applied plants. The inhibition of these parameters could be reversed by Dap treatments. Besides, Dap applications mitigated the As toxicity-induced suppression on chlorophyll fluorescence (Fv/Fm, Fv/Fo and Fo/Fm) and the performance of PSII photochemistry. As impaired the balance on antioxidant capacity by decreased activities of catalase (CAT), peroxidase (POX), glutathione peroxidase (GPX), ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), and the contents of ascorbate (AsA) and glutathione (GSH) and then lipid peroxidation (TBARS content) increased. In the presence of Dap under As stress, the plants exhibited an increase in superoxide dismutase (SOD), POX, and GPX. Dap treatments contributed to the maintenance of cellular redox state (AsA/ DHA and GSH/GSSG) by regulating the activities/contents of enzyme/non-enzyme involved in the AsA-GSH cycle. After Dap applications against stress, ROS accumulation (H2O2 content) and lipid peroxidation (TBARS) were effectively reduced. The findings showed that by eliminating As-induced oxidative damage and protecting the biochemical processes of photosynthesis, Dap treatments have a substantial potential to give resistance to wheat.en_US
dc.description.sponsorshipSelcuk University Scientific Research Programs Coordination Office [22201040]en_US
dc.description.sponsorshipAcknowledgements The Selcuk University Scientific Research Programs Coordination Office provided funding for this project (Grant Number: 22201040) .en_US
dc.identifier.doi10.1016/j.plaphy.2023.107886
dc.identifier.issn0981-9428
dc.identifier.issn1873-2690
dc.identifier.pmid37451004en_US
dc.identifier.scopus2-s2.0-85164670182en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.plaphy.2023.107886
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12493
dc.identifier.volume201en_US
dc.identifier.wosWOS:001047932800001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier France-Editions Scientifiques Medicales Elsevieren_US
dc.relation.ispartofPlant Physiology And Biochemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAntioxidanten_US
dc.subjectArsenicen_US
dc.subject3-Diaminopropaneen_US
dc.subjectPsii Photochemistryen_US
dc.subjectTriticum Aestivumen_US
dc.titlePolyamine, 1,3-diaminopropane, regulates defence responses on growth, gas exchange, PSII photochemistry and antioxidant system in wheat under arsenic toxicityen_US
dc.typeArticleen_US

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