Rare earth element scandium mitigates the chromium toxicity in Lemna minor by regulating photosynthetic performance, hormonal balance and antioxidant machinery

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dc.authoridCeyda Özfidan Konakçı : 0000-0002-7134-094en_US
dc.contributor.authorAlp, Fatma Nur
dc.contributor.authorArıkan, Büşra
dc.contributor.authorÖzfidan Konakçı, Ceyda
dc.contributor.authorEkim, Rumeysa
dc.contributor.authorYıldıztugay, Evren
dc.contributor.authorTuran, Metin
dc.date.accessioned2023-02-06T11:46:46Z
dc.date.available2023-02-06T11:46:46Z
dc.date.issued2023en_US
dc.departmentNEÜ, Fen Fakültesi, Moleküler Biyoloji ve Genetiken_US
dc.descriptionWOS:000904949200001en_US
dc.descriptionPubMed ID:36379288en_US
dc.description.abstractChromium (Cr) toxicity is a serious problem that threatens the health of living organisms and especially agricultural production. The presence of excess Cr leads to biomass loss by causing the imbalance of biochemical metabolism and inhibiting photosynthetic activity. A new critical approach to cope with Cr toxicity is the use of the rare earth elements (REEs) as an antioxidant defence system enhancer in plants. However, the effect of scandium (Sc), which is one of the REEs, is not clear enough in Lemna minor exposed to Cr toxicity. For this purpose, the photosynthetic and biochemical effects of scandium (50 μM and 200 μM Sc) treatments were investigated in Lemna minor under Cr stress (100 μM, 200 μM and 500 μM Cr). Parameters related to photosynthesis (Fv/Fm, Fv/Fo) were suppressed under Cr stress. Stress altered antioxidant enzymes activities and hormone contents. Sc applications against stress increased the activities of superoxide dismutase (SOD), NADPH oxidase (NOX), ascorbate peroxidase (APX), lutathione reductase (GR), monodehydroascorbate reductase (MDHAR), and glutathione S-transferase (GST). In addition to the antioxidant system, the contents of indole-3- acetic acid (IAA), abscisic acid (ABA) and jasmonic acid (JA) were also rearranged. However, in all treatment groups, with the provision of ascorbate (AsA) regeneration and effective hormone signaling, reactive oxygen species (ROS) retention which result in high hydrogen peroxide (H2O2) content and lipid peroxidation (TBARS) were effectively removed. Sc promoted the maintenance of cellular redox state by regulating antioxidant pathways included in the AsA-GSH cycle. Our results showed that Sc has great potential to confer tolerance to duckweed by reducing Cr induced oxidative damage, protecting the biochemical reactions of photosynthesis, and improving hormone signaling.en_US
dc.description.sponsorshipScientific Research Projects (BAP) Coordination Unit of Selcuk Universityen_US
dc.identifier.citationAlp, F. N., Arıkan, B., Özfidan, K. C., Ekim, R., Yıldıztugay, E., Turan, M. (2023). Rare earth element scandium mitigates the chromium toxicity in Lemna minor by regulating photosynthetic performance, hormonal balance and antioxidant machinery. Environmental Pollution, 316, 2, 1-11.en_US
dc.identifier.doi10.1016/j.envpol.2022.120636en_US
dc.identifier.endpage11en_US
dc.identifier.issn0269-7491en_US
dc.identifier.issn1873-6424en_US
dc.identifier.issue2en_US
dc.identifier.pmid36379288en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.envpol.2022.120636
dc.identifier.urihttps://hdl.handle.net/20.500.12452/9171
dc.identifier.volume316en_US
dc.identifier.wosWOS:000904949200001en_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.ispartofEnvironmental Pollutionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/embargoedAccessen_US
dc.subjectAntioxidant Systemen_US
dc.subjectChromium Toxicityen_US
dc.subjectHormone Contenten_US
dc.subjectLemna Minoren_US
dc.subjectScandiumen_US
dc.titleRare earth element scandium mitigates the chromium toxicity in Lemna minor by regulating photosynthetic performance, hormonal balance and antioxidant machineryen_US
dc.typeArticleen_US

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