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Tolerance of Facultative Metallophyte Carlina acaulis to Cadmium Relies on Chelating and Antioxidative Metabolites

The impact of long-term chronic cadmium stress (ChS, 0.1 µM Cd, 85 days) or short-term acute cadmium stress (AS, 10 µM Cd, 4 days) on Carlina acaulis (Asteraceae) metabolites was compared to identify specific traits. The content of Cd was higher under AS in all organs in comparison with ChS (130 vs....

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Autores principales: Dresler, Sławomir, Strzemski, Maciej, Kováčik, Jozef, Sawicki, Jan, Staniak, Michał, Wójciak, Magdalena, Sowa, Ireneusz, Hawrylak-Nowak, Barbara
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215424/
https://www.ncbi.nlm.nih.gov/pubmed/32325661
http://dx.doi.org/10.3390/ijms21082828
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author Dresler, Sławomir
Strzemski, Maciej
Kováčik, Jozef
Sawicki, Jan
Staniak, Michał
Wójciak, Magdalena
Sowa, Ireneusz
Hawrylak-Nowak, Barbara
author_facet Dresler, Sławomir
Strzemski, Maciej
Kováčik, Jozef
Sawicki, Jan
Staniak, Michał
Wójciak, Magdalena
Sowa, Ireneusz
Hawrylak-Nowak, Barbara
author_sort Dresler, Sławomir
collection PubMed
description The impact of long-term chronic cadmium stress (ChS, 0.1 µM Cd, 85 days) or short-term acute cadmium stress (AS, 10 µM Cd, 4 days) on Carlina acaulis (Asteraceae) metabolites was compared to identify specific traits. The content of Cd was higher under AS in all organs in comparison with ChS (130 vs. 16 µg·g(−1) DW, 7.9 vs. 3.2 µg·g(−1) DW, and 11.5 vs. 2.4 µg·g(−1) DW in roots, leaves, and trichomes, respectively) while shoot bioaccumulation factor under ChS (ca. 280) indicates efficient Cd accumulation. High content of Cd in the trichomes from the AS treatment may be an anatomical adaptation mechanism. ChS evoked an increase in root biomass (hormesis), while the impact on shoot biomass was not significant in any treatment. The amounts of ascorbic acid and sum of phytochelatins were higher in the shoots but organic (malic and citric) acids dominated in the roots of plants from the ChS treatment. Chlorogenic acid, but not ursolic and oleanolic acids, was elevated by ChS. These data indicate that both chelation and enhancement of antioxidative power contribute to protection of plants exposed to long-term (chronic) Cd presence with subsequent hormetic effect.
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spelling pubmed-72154242020-05-18 Tolerance of Facultative Metallophyte Carlina acaulis to Cadmium Relies on Chelating and Antioxidative Metabolites Dresler, Sławomir Strzemski, Maciej Kováčik, Jozef Sawicki, Jan Staniak, Michał Wójciak, Magdalena Sowa, Ireneusz Hawrylak-Nowak, Barbara Int J Mol Sci Article The impact of long-term chronic cadmium stress (ChS, 0.1 µM Cd, 85 days) or short-term acute cadmium stress (AS, 10 µM Cd, 4 days) on Carlina acaulis (Asteraceae) metabolites was compared to identify specific traits. The content of Cd was higher under AS in all organs in comparison with ChS (130 vs. 16 µg·g(−1) DW, 7.9 vs. 3.2 µg·g(−1) DW, and 11.5 vs. 2.4 µg·g(−1) DW in roots, leaves, and trichomes, respectively) while shoot bioaccumulation factor under ChS (ca. 280) indicates efficient Cd accumulation. High content of Cd in the trichomes from the AS treatment may be an anatomical adaptation mechanism. ChS evoked an increase in root biomass (hormesis), while the impact on shoot biomass was not significant in any treatment. The amounts of ascorbic acid and sum of phytochelatins were higher in the shoots but organic (malic and citric) acids dominated in the roots of plants from the ChS treatment. Chlorogenic acid, but not ursolic and oleanolic acids, was elevated by ChS. These data indicate that both chelation and enhancement of antioxidative power contribute to protection of plants exposed to long-term (chronic) Cd presence with subsequent hormetic effect. MDPI 2020-04-18 /pmc/articles/PMC7215424/ /pubmed/32325661 http://dx.doi.org/10.3390/ijms21082828 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
Dresler, Sławomir
Strzemski, Maciej
Kováčik, Jozef
Sawicki, Jan
Staniak, Michał
Wójciak, Magdalena
Sowa, Ireneusz
Hawrylak-Nowak, Barbara
Tolerance of Facultative Metallophyte Carlina acaulis to Cadmium Relies on Chelating and Antioxidative Metabolites
title Tolerance of Facultative Metallophyte Carlina acaulis to Cadmium Relies on Chelating and Antioxidative Metabolites
title_full Tolerance of Facultative Metallophyte Carlina acaulis to Cadmium Relies on Chelating and Antioxidative Metabolites
title_fullStr Tolerance of Facultative Metallophyte Carlina acaulis to Cadmium Relies on Chelating and Antioxidative Metabolites
title_full_unstemmed Tolerance of Facultative Metallophyte Carlina acaulis to Cadmium Relies on Chelating and Antioxidative Metabolites
title_short Tolerance of Facultative Metallophyte Carlina acaulis to Cadmium Relies on Chelating and Antioxidative Metabolites
title_sort tolerance of facultative metallophyte carlina acaulis to cadmium relies on chelating and antioxidative metabolites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215424/
https://www.ncbi.nlm.nih.gov/pubmed/32325661
http://dx.doi.org/10.3390/ijms21082828
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