Responses of individual and combined polystyrene and polymethyl methacrylate nanoplastics on hormonal content, fluorescence/photochemistry of chlorophylls and ROS scavenging capacity in Lemna minor under arsenic-induced oxidative stress

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dc.authoridCeyda Özfidan Konakçı: 0000-0002-7134-0948en_US
dc.contributor.authorÖzfidan Konakçı, Ceyda
dc.contributor.authorYıldıztugay, Evren
dc.contributor.authorArıkan, Büşra
dc.contributor.authorAlp Turgut, Fatma Nur
dc.contributor.authorTuran, Metin
dc.contributor.authorÇavuşoğlu, Halit
dc.contributor.authorŞakalak, Hüseyin
dc.date.accessioned2023-05-30T11:05:59Z
dc.date.available2023-05-30T11:05:59Z
dc.date.issued2023en_US
dc.departmentNEÜ, Fen Fakültesi, Moleküler Biyoloji ve Genetiken_US
dc.descriptionMakaleen_US
dc.descriptionWOS:000923403700001en_US
dc.descriptionPubMed ID:36657731en_US
dc.description.abstractNanoplastics alter the adverse impacts of hazardous contaminants such as heavy metals by changing their adsorption and accumulation. Few findings are available on the interaction between nanoplastic and heavy metals in plants. However, there is no report on the mechanisms for removing metal stress-mediated oxidative damage by the combination treatments of nanoplastics. To address this lack of information, polystyrene nano-plastic (PS, 100 mg L-1) and polymethyl methacrylate (PMMA, 100 mg L-1) were hydroponically applied to Lemna minor exposed to arsenate (As, 100 mu M) for 7 days. PS or PMMA caused a reduction in the contents of N, P, K, Ca, Mg and Mn, but the improved contents were detected in the presence of PS or PMMA plus As stress. The hormone contents (auxin, gibberellic acid, cytokinin, salicylic acid and jasmonic acid) reduced by stress were re-arranged through PS or PMMA applications. Based on chlorophyll efficiency, fluorescence kinetics and performance of PSII, the impaired photosynthesis by As stress was improved via PS or PMMA applications. This alleviation did not continue under the combined form of PS and PMMA in As-applied plants. All analyzed antioxidant activity (superoxide dismutase (SOD), catalase (CAT), peroxidase (POX), ascorbate peroxidase (APX), glutathione reductase (GR), glutathione S-transferase (GST), glutathione peroxidase (GPX), monodehydroascorbate reduc-tase (MDHAR) and dehydroascorbate reductase (DHAR)) decreased or unchanged under As, PS or PMMA. Due to the inactivation of the defense system, L. minor had high levels of hydrogen peroxide (H2O2) and thiobarbituric acid reactive substances (TBARS), showing lipid peroxidation. After As toxicity, induvial applications of PS or PMMA indicated the activated enzyme capacity (SOD, POX, GST and GPX) and upregulated AsA/DHA, GSH/ GSSG and redox state of GSH, which facilitated the removal of radical accumulation. The efficiency of the antioxidant system in As + PS + PMMA-applied L. minor was not enough to remove damage induced by As stress; hereby, TBARS and H2O2 contents were similar to the As-treated group. Our findings from alone or combined application of PS and PMMA provide new information to advance the tolerance mechanism against As exposure in L. minor.en_US
dc.identifier.citationÖzfidan Konakçı, C., Yıldıztugay, E., Arıkan, B., Alp Turgut, F. N., Turan, M., Çavuşoğlu, H., Şakalak, H. (2023). Responses of individual and combined polystyrene and polymethyl methacrylate nanoplastics on hormonal content, fluorescence/photochemistry of chlorophylls and ROS scavenging capacity in Lemna minor under arsenic-induced oxidative stress. Free Radical Biology and Medicine, 196, 93-107.en_US
dc.identifier.doi10.1016/j.freeradbiomed.2023.01.015en_US
dc.identifier.endpage107en_US
dc.identifier.issn0891-5849en_US
dc.identifier.issn1873-4596en_US
dc.identifier.issue-en_US
dc.identifier.pmid36657731en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage93en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.freeradbiomed.2023.01.015
dc.identifier.urihttps://hdl.handle.net/20.500.12452/9741
dc.identifier.volume196en_US
dc.identifier.wosWOS:000923403700001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofFree Radical Biology and Medicineen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/embargoedAccessen_US
dc.subjectAntioxidanten_US
dc.subjectArsenicen_US
dc.subjectChlorophyll a Fluorescence Transienten_US
dc.subjectNanoplasticen_US
dc.subjectPolymethyl Methacrylateen_US
dc.subjectPolystreneen_US
dc.titleResponses of individual and combined polystyrene and polymethyl methacrylate nanoplastics on hormonal content, fluorescence/photochemistry of chlorophylls and ROS scavenging capacity in Lemna minor under arsenic-induced oxidative stressen_US
dc.typeArticleen_US

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