Response of Three <i>Miscanthus × giganteus</i> Cultivars to Toxic Elements Stress: Part 1, Plant Defence Mechanisms
<i>Miscanthus × giganteus</i> demonstrated good phytostabilization potentials in toxic element (TE) contaminated soils. However, information about its tolerance to elevated concentrations is still scarce. Therefore, an ex-situ pot experiment was launched using three cultivars (termed B,...
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MDPI AG
2021-09-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/10/2035 |
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| author | Karim Suhail Al Souki Clarisse Liné Francis Douay Bertrand Pourrut |
| author_facet | Karim Suhail Al Souki Clarisse Liné Francis Douay Bertrand Pourrut |
| author_sort | Karim Suhail Al Souki |
| collection | DOAJ |
| description | <i>Miscanthus × giganteus</i> demonstrated good phytostabilization potentials in toxic element (TE) contaminated soils. However, information about its tolerance to elevated concentrations is still scarce. Therefore, an ex-situ pot experiment was launched using three cultivars (termed B, U, and A) grown in soils with a gradient Cd, Pb and Zn concentrations. Control plants were also cultivated in non-contaminated soil. Results show that the number of tillers per plant, stem diameter as well as leaf photosynthetic pigments (chlorophyll <i>a</i>, <i>b</i> and carotenoids) were negatively impacted by soil contamination. On the other hand, phenolic compounds, flavonoids, tannins, and anthocyanins levels along with the antioxidant enzymatic activities of superoxide dismutase, ascorbate peroxidase and glutathione reductase increased in the plants grown on contaminated soils. Altogether, these data demonstrate that miscanthus is impacted by concentrations of toxic elements yet is able to tolerate high levels of soil contamination. These results may contribute to clarifying the miscanthus tolerance strategy against high contamination levels and its efficiency in phytoremediation. |
| first_indexed | 2024-03-10T06:14:54Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T06:14:54Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-043d6ce368144aa6a1e63b5acc2d5f1f2023-11-22T19:42:45ZengMDPI AGPlants2223-77472021-09-011010203510.3390/plants10102035Response of Three <i>Miscanthus × giganteus</i> Cultivars to Toxic Elements Stress: Part 1, Plant Defence MechanismsKarim Suhail Al Souki0Clarisse Liné1Francis Douay2Bertrand Pourrut3Department of Environmental Chemistry and Technology, Faculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 400 96 Ústí nad Labem, Czech RepublicLaboratoire Génie Civil et Géo-Environnement (LGCgE), ISA Lille, Junia, 48 Boulevard Vauban, 59046 Lille, FranceLaboratoire Génie Civil et Géo-Environnement (LGCgE), ISA Lille, Junia, 48 Boulevard Vauban, 59046 Lille, FranceLaboratoire Génie Civil et Géo-Environnement (LGCgE), ISA Lille, Junia, 48 Boulevard Vauban, 59046 Lille, France<i>Miscanthus × giganteus</i> demonstrated good phytostabilization potentials in toxic element (TE) contaminated soils. However, information about its tolerance to elevated concentrations is still scarce. Therefore, an ex-situ pot experiment was launched using three cultivars (termed B, U, and A) grown in soils with a gradient Cd, Pb and Zn concentrations. Control plants were also cultivated in non-contaminated soil. Results show that the number of tillers per plant, stem diameter as well as leaf photosynthetic pigments (chlorophyll <i>a</i>, <i>b</i> and carotenoids) were negatively impacted by soil contamination. On the other hand, phenolic compounds, flavonoids, tannins, and anthocyanins levels along with the antioxidant enzymatic activities of superoxide dismutase, ascorbate peroxidase and glutathione reductase increased in the plants grown on contaminated soils. Altogether, these data demonstrate that miscanthus is impacted by concentrations of toxic elements yet is able to tolerate high levels of soil contamination. These results may contribute to clarifying the miscanthus tolerance strategy against high contamination levels and its efficiency in phytoremediation.https://www.mdpi.com/2223-7747/10/10/2035<i>Miscanthus × giganteus</i>toxic elements (TE)photosynthetic pigmentssecondary metabolitesantioxidant enzymes |
| spellingShingle | Karim Suhail Al Souki Clarisse Liné Francis Douay Bertrand Pourrut Response of Three <i>Miscanthus × giganteus</i> Cultivars to Toxic Elements Stress: Part 1, Plant Defence Mechanisms Plants <i>Miscanthus × giganteus</i> toxic elements (TE) photosynthetic pigments secondary metabolites antioxidant enzymes |
| title | Response of Three <i>Miscanthus × giganteus</i> Cultivars to Toxic Elements Stress: Part 1, Plant Defence Mechanisms |
| title_full | Response of Three <i>Miscanthus × giganteus</i> Cultivars to Toxic Elements Stress: Part 1, Plant Defence Mechanisms |
| title_fullStr | Response of Three <i>Miscanthus × giganteus</i> Cultivars to Toxic Elements Stress: Part 1, Plant Defence Mechanisms |
| title_full_unstemmed | Response of Three <i>Miscanthus × giganteus</i> Cultivars to Toxic Elements Stress: Part 1, Plant Defence Mechanisms |
| title_short | Response of Three <i>Miscanthus × giganteus</i> Cultivars to Toxic Elements Stress: Part 1, Plant Defence Mechanisms |
| title_sort | response of three i miscanthus giganteus i cultivars to toxic elements stress part 1 plant defence mechanisms |
| topic | <i>Miscanthus × giganteus</i> toxic elements (TE) photosynthetic pigments secondary metabolites antioxidant enzymes |
| url | https://www.mdpi.com/2223-7747/10/10/2035 |
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