Evaluation of two wild castor (Ricinus communis L.) accessions for cadmium tolerance in relation to antioxidant systems and lipid peroxidation
| Autor: | Xuegui Yin, Hanna Amoanimaa-Dede, Shuailei Gu, Joseph Payne, Kwadwo Gyapong Agyenim-Boateng, Akwasi Yeboah, Haiyan Liu, Jiannong Lu, Yuzhen Shi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Antioxidant Health Toxicology and Mutagenesis medicine.medical_treatment 010501 environmental sciences 01 natural sciences Antioxidants Superoxide dismutase Lipid peroxidation chemistry.chemical_compound Dry weight medicine Environmental Chemistry 0105 earth and related environmental sciences biology Chemistry Ricinus General Medicine Malondialdehyde biology.organism_classification Pollution Horticulture Catalase Oxidative stress Shoot biology.protein Lipid Peroxidation Reactive oxygen species 010606 plant biology & botany Research Article Cadmium Tolerance index |
| Zdroj: | Environmental Science and Pollution Research International |
| ISSN: | 1614-7499 0944-1344 |
| Popis: | The present study was conducted to assess the effect of toxicity of cadmium (Cd) on growth, tolerance index (TI), antioxidant activities, and malondialdehyde (MDA) content in two contrasting wild castor accessions (16–024 and S2-4) via hydroponic experiment (0 and 100 mg/L Cd). The results showed that Cd significantly reduced the growth rate, seedling height, root length, and shoot length of the castor accessions compared to control, with the Cd effect being more severe in S2-4 than in 16–024. In addition, biomass response including the root and shoot fresh weight and root dry weight decreased in both accessions compared to control. Shoot dry weight of 16–024 increased (p > 0.05) by 2.04 % compared to S2-4 which declined by 21.07 %, suggesting a minimal effect of Cd and a level of tolerance in 16–024. Analysis of TI on all the growth parameters and biomass content revealed that accession 16–024 was highly tolerant to Cd stress than S2-4. The results further revealed that the expression of the antioxidant enzymes viz., superoxide dismutase (SOD), catalase (CAT), non-enzymatic antioxidant; glutathione, and MDA content, were influenced by genotype. S2-4 exhibited a higher antioxidant activity (SOD, CAT) and lipid peroxidation activity than 16–024, indicative of oxidative damage from Cd stress. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink