Tolerance of Mentha crispa L. (garden mint) cultivated in cadmium-contaminated oxisol
| Autor: | Adriana Zemiani, Edson Fontes de Oliveira, Maria Theresa Bettin Boldarini, Alessandra Furtado da Silva, Marcelo Hidemassa Anami |
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| Rok vydání: | 2020 |
| Předmět: |
Health
Toxicology and Mutagenesis chemistry.chemical_element 010501 environmental sciences Biology 01 natural sciences Plant Roots Metallophyte Environmental Chemistry Ecotoxicology Soil Pollutants 0105 earth and related environmental sciences Cadmium Chlorosis fungi food and beverages Wilting General Medicine Pollution Plant Leaves Horticulture Biodegradation Environmental chemistry Oxisol Bioaccumulation Shoot Gardens Mentha |
| Zdroj: | Environmental science and pollution research international. 28(31) |
| ISSN: | 1614-7499 |
| Popis: | The tolerance of Mentha crispa L. (garden mint) cultivated in cadmium-contaminated oxisol for 120 days was analyzed using plant growth variables such as height, the number of leaves and shoots in different Cd exposure periods, as well as assessing the metal concentration absorbed and accumulated in the plant parts (root, stem, and leaves). The maximum adsorption capacity was estimated at 9220 mg kg−1 and used as a reference to establish the different Cd concentrations to be applied in the soil. M. crispa showed tolerance and revealed a reduction of height, the number of leaves and shoots, root development, and secondary toxicity signs such as chlorosis and leaf wilting. Comparing to the stems and leaves, Cd was retained mainly in the roots. PERMANOVA showed that plant growth variables and Cd concentrations in the plant’s part were affected by the Cd exposure time. The canonical discriminant analysis demonstrated height as the most affected variable until 45 growing days, and different responses were observed after 75 days. However, the number of shoots was the variable most affected by higher Cd concentrations. The bioaccumulation and translocation factors for all treatments were lower than one, indicating that M. crispa can be considered as an excluder plant and applied for a phytostabilization strategy. |
| Databáze: | OpenAIRE |
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