Scopus
YÖKSİS Eşleşti
Rare earth element scandium mitigates the chromium toxicity in Lemna minor by regulating photosynthetic performance, hormonal balance and antioxidant machinery
Environmental Pollution · Ocak 2023
YÖKSİS Kayıtları
Rare earth element scandium mitigates the chromium toxicity in Lemna minor by regulating photosynthetic performance, hormonal balance and antioxidant machinery
Environmental Pollution · 2023 SCI-Expanded
DOÇENT BÜŞRA ARIKAN ABDULVELİ →
Rare earth element scandium mitigates the chromium toxicity in Lemna minor by regulating photosynthetic performance, hormonal balance and antioxidant machinery
Environmental Pollution · 2023 SCI-Expanded
ARAŞTIRMA GÖREVLİSİ FATMA NUR ALP TURGUT →
Rare earth element scandium mitigates the chromium toxicity in Lemna minor by regulating photosynthetic performance, hormonal balance and antioxidant machinery
Environmental Pollution · 2023 SCI-Expanded
PROFESÖR EVREN YILDIZTUGAY →
Makale Bilgileri
DergiEnvironmental Pollution
Yayın TarihiOcak 2023
Cilt / Sayfa316
Scopus ID2-s2.0-85142139473
Özet
Chromium (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), glutathione 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.
Yazarlar (6)
1
Fatma Nur Alp-Turgut
ORCID: 0000-0002-1884-2367
2
Busra Arikan
ORCID: 0000-0001-5313-0501
3
Ceyda Ozfidan-Konakci
ORCID: 0000-0002-7134-0948
4
Rumeysa Ekim
5
Evren Yildiztugay
ORCID: 0000-0002-4675-2027
6
Metin Turan
ORCID: 0000-0002-4849-7680
Anahtar Kelimeler
Antioxidant system
Chromium toxicity
Hormone content
Lemna minor
Scandium
Kurumlar
Necmettin Erbakan Üniversitesi
Meram Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Yeditepe University
Istanbul Turkey
Metrikler
11
Atıf
6
Yazar
5
Anahtar Kelime