Selenium treatment modulates fluoride distribution and mitigates fluoride stress in tea plant (Camellia sinensis (L.) O. Kuntze)
| Autor: | Chuanyi Peng, Chaoyuan Hou, Hui‐liang Niu, Kui Zhan, Huimei Cai, Xiaochun Wan, Wei Xu, Yeyun Li, Ruyan Hou |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010504 meteorology & atmospheric sciences
Health Toxicology and Mutagenesis chemistry.chemical_element 010501 environmental sciences Calcium Toxicology complex mixtures 01 natural sciences Camellia sinensis Superoxide dismutase chemistry.chemical_compound Fluorides Selenium Magnesium Food science 0105 earth and related environmental sciences biology Tea food and beverages General Medicine Malondialdehyde Pollution Plant Leaves chemistry Catalase biology.protein Fluoride Peroxidase |
| Zdroj: | Environmental pollution (Barking, Essex : 1987). 267 |
| ISSN: | 1873-6424 |
| Popis: | Tea plants (Camellia sinensis (L.) O. Kuntze) can hyperaccumulate fluoride (F). The accumulation of F in tea leaves may induce serious health problems in tea consumers. It has been reported that selenium (Se) could reduce the accumulation of heavy metals in plants. Thus, the aim of this study was to investigate whether exogenous Se could reduce F accumulation in tea plant. The results showed that Se treatment could decrease F content in tea leaves, increase F accumulation in roots, decrease the proportion of water-soluble F in tea leaves and increase the Se content. Low F levels promoted the accumulation of Se in tea plants. Se treatment could modulate F-induced oxidative injury by decreasing malondialdehyde level and increasing the activities of superoxide dismutase, peroxidase and catalase. Moreover, Se inhibited F-induced increase in leaf iron, calcium, aluminum, leaf and root magnesium and lead contents. These results showed that Se application could decrease F content and increase Se content in tea leaves, which may be served as a novel strategy for production of healthy tea. |
| Databáze: | OpenAIRE |
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