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The Common Ice Plant (Mesembryanthemum crystallinum L.)–Phytoremediation Potential for Cadmium and Chromate-Contaminated Soils
The common ice plant (Mesembryanthemum crystallinum L.) is a widely studied model due to its tolerance to numerous biotic and abiotic stresses. In this study, carried out in model pots, the plants were treated with variant doses of Cd(II) and Cr(VI) and proved resistant to extreme levels of these he...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570128/ https://www.ncbi.nlm.nih.gov/pubmed/32961911 http://dx.doi.org/10.3390/plants9091230 |
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author | Śliwa-Cebula, Marta Kaszycki, Paweł Kaczmarczyk, Adriana Nosek, Michał Lis-Krzyścin, Agnieszka Miszalski, Zbigniew |
author_facet | Śliwa-Cebula, Marta Kaszycki, Paweł Kaczmarczyk, Adriana Nosek, Michał Lis-Krzyścin, Agnieszka Miszalski, Zbigniew |
author_sort | Śliwa-Cebula, Marta |
collection | PubMed |
description | The common ice plant (Mesembryanthemum crystallinum L.) is a widely studied model due to its tolerance to numerous biotic and abiotic stresses. In this study, carried out in model pots, the plants were treated with variant doses of Cd(II) and Cr(VI) and proved resistant to extreme levels of these heavy metals. Initial toxicity symptoms were observed upon final concentrations of 818 mg Cd kg(−1) soil d.w., and 1699 mg Cr kg(−1) applied as potassium chromate. Biometric analyses revealed that none of the Cr(VI) doses affected dry weight of the plant organs thus maintaining the shoot-to-root ratio. The Cd and Cr hypertolerance strategies were divergent and resulted in different accumulation patterns. For the case of Cd(II), an excluder-like mechanism was developed to prevent the plant from toxicity. For chromate, high accumulation potential together with Cr(VI) root-to-shoot translocation at sublethal concentrations was revealed (up to 6152 mg Cr kg(−1) shoot at 4248 mg Cr kg(−1) soil). It is concluded that M. crystallinum reveals considerable phytoremediation capabilities due to unique growth potential in contaminated substrates and is suitable for bioreclamation of degraded soils. The plant is especially applicable for efficient phytoextraction of chromate-contamination, whereas for Cd-affected areas it may have a phytostabilizing effect. |
format | Online Article Text |
id | pubmed-7570128 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75701282020-10-28 The Common Ice Plant (Mesembryanthemum crystallinum L.)–Phytoremediation Potential for Cadmium and Chromate-Contaminated Soils Śliwa-Cebula, Marta Kaszycki, Paweł Kaczmarczyk, Adriana Nosek, Michał Lis-Krzyścin, Agnieszka Miszalski, Zbigniew Plants (Basel) Article The common ice plant (Mesembryanthemum crystallinum L.) is a widely studied model due to its tolerance to numerous biotic and abiotic stresses. In this study, carried out in model pots, the plants were treated with variant doses of Cd(II) and Cr(VI) and proved resistant to extreme levels of these heavy metals. Initial toxicity symptoms were observed upon final concentrations of 818 mg Cd kg(−1) soil d.w., and 1699 mg Cr kg(−1) applied as potassium chromate. Biometric analyses revealed that none of the Cr(VI) doses affected dry weight of the plant organs thus maintaining the shoot-to-root ratio. The Cd and Cr hypertolerance strategies were divergent and resulted in different accumulation patterns. For the case of Cd(II), an excluder-like mechanism was developed to prevent the plant from toxicity. For chromate, high accumulation potential together with Cr(VI) root-to-shoot translocation at sublethal concentrations was revealed (up to 6152 mg Cr kg(−1) shoot at 4248 mg Cr kg(−1) soil). It is concluded that M. crystallinum reveals considerable phytoremediation capabilities due to unique growth potential in contaminated substrates and is suitable for bioreclamation of degraded soils. The plant is especially applicable for efficient phytoextraction of chromate-contamination, whereas for Cd-affected areas it may have a phytostabilizing effect. MDPI 2020-09-18 /pmc/articles/PMC7570128/ /pubmed/32961911 http://dx.doi.org/10.3390/plants9091230 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Śliwa-Cebula, Marta Kaszycki, Paweł Kaczmarczyk, Adriana Nosek, Michał Lis-Krzyścin, Agnieszka Miszalski, Zbigniew The Common Ice Plant (Mesembryanthemum crystallinum L.)–Phytoremediation Potential for Cadmium and Chromate-Contaminated Soils |
title | The Common Ice Plant (Mesembryanthemum crystallinum L.)–Phytoremediation Potential for Cadmium and Chromate-Contaminated Soils |
title_full | The Common Ice Plant (Mesembryanthemum crystallinum L.)–Phytoremediation Potential for Cadmium and Chromate-Contaminated Soils |
title_fullStr | The Common Ice Plant (Mesembryanthemum crystallinum L.)–Phytoremediation Potential for Cadmium and Chromate-Contaminated Soils |
title_full_unstemmed | The Common Ice Plant (Mesembryanthemum crystallinum L.)–Phytoremediation Potential for Cadmium and Chromate-Contaminated Soils |
title_short | The Common Ice Plant (Mesembryanthemum crystallinum L.)–Phytoremediation Potential for Cadmium and Chromate-Contaminated Soils |
title_sort | common ice plant (mesembryanthemum crystallinum l.)–phytoremediation potential for cadmium and chromate-contaminated soils |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570128/ https://www.ncbi.nlm.nih.gov/pubmed/32961911 http://dx.doi.org/10.3390/plants9091230 |
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