Multiwalled Carbon Nanotubes Alter the PSII Photochemistry, Photosystem-Related Gene Expressions, and Chloroplastic Antioxidant System in Zea mays under Copper Toxicity

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dc.contributor.authorAlp, Fatma Nur
dc.contributor.authorArikan, Busra
dc.contributor.authorOzfidan-Konakci, Ceyda
dc.contributor.authorBalci, Melike
dc.contributor.authorYildiztugay, Evren
dc.contributor.authorCavusoglu, Halit
dc.date.accessioned2024-02-23T14:16:34Z
dc.date.available2024-02-23T14:16:34Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractA critical approach against copper (Cu) toxicity is the use of carbon nanomaterials (CNMs). However, the effect of CNMs on Cu toxicity-exposed chloroplasts is not clear. The photosynthetic, genetic, and biochemical effects of multiwalled carbon nanotubes (50-100-250 mg L-1 CNT) were investigated under Cu stress (50-100 mu M CuSO4) in Zea mays chloroplasts. F-v/F-m and F-v/F-o were suppressed under stress. Stress altered the antioxidant system and the expression of psaA, psaB, psbA, and psbD. The chloroplastic activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione S-transferase (GST), and glutathione peroxidase (GPX) increased under CNT + stress, and those of hydrogen peroxide (H2O2) and lipid peroxidation decreased. CNTs were promoted to the maintenance of the redox state by regulating enzyme/non-enzyme activity/contents involved in the AsA-GSH cycle. Furthermore, CNTs inverted the negative effects of Cu by upregulating the transcriptions of photosystem-related genes. However, the high CNT concentration had adverse effects on the antioxidant capacity. CNT has great potential to confer tolerance by reducing Cu-induced damage and protecting the biochemical reactions of photosynthesis.en_US
dc.identifier.doi10.1021/acs.jafc.2c02608
dc.identifier.issn0021-8561
dc.identifier.issn1520-5118
dc.identifier.pmid36048567en_US
dc.identifier.scopus2-s2.0-85137866748en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1021/acs.jafc.2c02608
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12719
dc.identifier.wosWOS:000875123700001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofJournal Of Agricultural And Food Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAntioxidant Systemen_US
dc.subjectCopper Toxicityen_US
dc.subjectMulti-Walled Carbon Nanotubeen_US
dc.subjectPsba Expressionen_US
dc.subjectZea Maysen_US
dc.titleMultiwalled Carbon Nanotubes Alter the PSII Photochemistry, Photosystem-Related Gene Expressions, and Chloroplastic Antioxidant System in Zea mays under Copper Toxicityen_US
dc.typeArticleen_US

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