Zinc shields against copper phytotoxicity in a contaminated soil
Language English Country England, Great Britain Media print-electronic
Document type Journal Article
PubMed
38556180
DOI
10.1016/j.chemosphere.2024.141861
PII: S0045-6535(24)00754-9
Knihovny.cz E-resources
- Keywords
- Alleviating affect, Antagonism, Lolium perenne, Protective effect,
- MeSH
- Lolium * MeSH
- Soil Pollutants * analysis MeSH
- Copper analysis MeSH
- Soil MeSH
- Zinc Sulfate metabolism MeSH
- Zinc chemistry MeSH
- Environmental Pollution MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Soil Pollutants * MeSH
- Copper MeSH
- Soil MeSH
- Zinc Sulfate MeSH
- Zinc MeSH
While zinc protects plants from copper in hydroponics, its behavior in soil remains unclear. We investigated the potential of zinc sulfate to protect ryegrass from copper toxicity in contaminated soil. Twelve soil treatments combined varying levels of copper oxide (CuO) and zinc sulfate (ZnSO4). Increasing CuO significantly stunted ryegrass, but adding ZnSO4 mitigated the effects at each CuO level. ZnSO4 had no effect in unpolluted conditions. These results, supported by the Terrestrial Biotic Ligand Model, indicate that zinc competes with copper for binding sites, reducing copper uptake by ryegrass and mitigating its toxicity. Application of zinc sulfate to copper-contaminated soils appears promising for ryegrass growth, although field studies are critical to confirm real-world efficacy.
Independent Researcher Prague Czech Republic
Instituto de Biología Pontificia Universidad Católica de Valparaíso Valparaíso Chile
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