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Antioxidant system response, mineral element uptake and safe utilization of Polygonatum sibiricum in cadmium-contaminated soil

Chinese herbal medicine is widely cultivated in Southwest China, where the soil cadmium (Cd) contamination of farmland is more serious than that in China as a whole. In this study, Polygonatum sibiricum was exposed to Cd at concentrations of e(−1), e(0), e(2), and e(4) mg/kg for 30, 60, and 90 days,...

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Autores principales: Kang, Yuchen, Yang, Li, Dai, Haibo, Xie, Mengdi, Wang, Yuhao, Peng, Jie, Sun, Hui, Ao, Tianqi, Chen, Wenqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8455694/
https://www.ncbi.nlm.nih.gov/pubmed/34548529
http://dx.doi.org/10.1038/s41598-021-97998-7
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author Kang, Yuchen
Yang, Li
Dai, Haibo
Xie, Mengdi
Wang, Yuhao
Peng, Jie
Sun, Hui
Ao, Tianqi
Chen, Wenqing
author_facet Kang, Yuchen
Yang, Li
Dai, Haibo
Xie, Mengdi
Wang, Yuhao
Peng, Jie
Sun, Hui
Ao, Tianqi
Chen, Wenqing
author_sort Kang, Yuchen
collection PubMed
description Chinese herbal medicine is widely cultivated in Southwest China, where the soil cadmium (Cd) contamination of farmland is more serious than that in China as a whole. In this study, Polygonatum sibiricum was exposed to Cd at concentrations of e(−1), e(0), e(2), and e(4) mg/kg for 30, 60, and 90 days, and the physiological stress responses, Cd and mineral element uptake, antioxidant enzyme activities, and content changes of pharmaceutical ingredients (polysaccharides) were analyzed to decipher the feasibility of safe utilization in Cd-contaminated soil. The results show that the activity of antioxidant enzymes (SOD and CAT) in the aboveground part was always higher than that in the underground part. The underground part of Polygonatum sibiricum mobilizes nonenzymatic systems to facilitate the synthesis of polysaccharides (PCP1, PCP2) with antioxidant properties to cope with Cd stress. Mineral elements (P, K, Ca, Mg, Fe, Cu, and Zn) significantly (p < 0.05) changed after 90 d of cultivation. In particular, the changes in the iron and zinc content were significantly correlated (p < 0.05) with the activities of SOD and POD. Soil Cd at e(0) mg/kg can guarantee the safe production and utilization of Polygonatum sibiricum, and the stimulation of Cd promotes polysaccharide synthesis and biomass growth.
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spelling pubmed-84556942021-09-24 Antioxidant system response, mineral element uptake and safe utilization of Polygonatum sibiricum in cadmium-contaminated soil Kang, Yuchen Yang, Li Dai, Haibo Xie, Mengdi Wang, Yuhao Peng, Jie Sun, Hui Ao, Tianqi Chen, Wenqing Sci Rep Article Chinese herbal medicine is widely cultivated in Southwest China, where the soil cadmium (Cd) contamination of farmland is more serious than that in China as a whole. In this study, Polygonatum sibiricum was exposed to Cd at concentrations of e(−1), e(0), e(2), and e(4) mg/kg for 30, 60, and 90 days, and the physiological stress responses, Cd and mineral element uptake, antioxidant enzyme activities, and content changes of pharmaceutical ingredients (polysaccharides) were analyzed to decipher the feasibility of safe utilization in Cd-contaminated soil. The results show that the activity of antioxidant enzymes (SOD and CAT) in the aboveground part was always higher than that in the underground part. The underground part of Polygonatum sibiricum mobilizes nonenzymatic systems to facilitate the synthesis of polysaccharides (PCP1, PCP2) with antioxidant properties to cope with Cd stress. Mineral elements (P, K, Ca, Mg, Fe, Cu, and Zn) significantly (p < 0.05) changed after 90 d of cultivation. In particular, the changes in the iron and zinc content were significantly correlated (p < 0.05) with the activities of SOD and POD. Soil Cd at e(0) mg/kg can guarantee the safe production and utilization of Polygonatum sibiricum, and the stimulation of Cd promotes polysaccharide synthesis and biomass growth. Nature Publishing Group UK 2021-09-21 /pmc/articles/PMC8455694/ /pubmed/34548529 http://dx.doi.org/10.1038/s41598-021-97998-7 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Kang, Yuchen
Yang, Li
Dai, Haibo
Xie, Mengdi
Wang, Yuhao
Peng, Jie
Sun, Hui
Ao, Tianqi
Chen, Wenqing
Antioxidant system response, mineral element uptake and safe utilization of Polygonatum sibiricum in cadmium-contaminated soil
title Antioxidant system response, mineral element uptake and safe utilization of Polygonatum sibiricum in cadmium-contaminated soil
title_full Antioxidant system response, mineral element uptake and safe utilization of Polygonatum sibiricum in cadmium-contaminated soil
title_fullStr Antioxidant system response, mineral element uptake and safe utilization of Polygonatum sibiricum in cadmium-contaminated soil
title_full_unstemmed Antioxidant system response, mineral element uptake and safe utilization of Polygonatum sibiricum in cadmium-contaminated soil
title_short Antioxidant system response, mineral element uptake and safe utilization of Polygonatum sibiricum in cadmium-contaminated soil
title_sort antioxidant system response, mineral element uptake and safe utilization of polygonatum sibiricum in cadmium-contaminated soil
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8455694/
https://www.ncbi.nlm.nih.gov/pubmed/34548529
http://dx.doi.org/10.1038/s41598-021-97998-7
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