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Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants
Cadmium (Cd) is highly toxic to living organisms and the contamination of Cd in paddy soil in China has received much attention. In the present study, by conducting pot experiment, the influence of S fertilizer (S(0)) on rice growth, iron plaque formation, Cd accumulation in rice plants and bacteria...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8169911/ https://www.ncbi.nlm.nih.gov/pubmed/34075125 http://dx.doi.org/10.1038/s41598-021-91003-x |
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author | Sun, Lijuan Song, Ke Shi, Lizheng Duan, Dechao Zhang, Hong Sun, Yafei Qin, Qin Xue, Yong |
author_facet | Sun, Lijuan Song, Ke Shi, Lizheng Duan, Dechao Zhang, Hong Sun, Yafei Qin, Qin Xue, Yong |
author_sort | Sun, Lijuan |
collection | PubMed |
description | Cadmium (Cd) is highly toxic to living organisms and the contamination of Cd in paddy soil in China has received much attention. In the present study, by conducting pot experiment, the influence of S fertilizer (S(0)) on rice growth, iron plaque formation, Cd accumulation in rice plants and bacterial community in rice rhizosphere soil was investigated. The biomass of rice plants was significantly increased by S(0) addition (19.5–73.6%). The addition of S(0) increased the formation of iron plaque by 24.3–45.8%, meanwhile the amount of Cd sequestered on iron plaque increased. In soil treated with 5 mg/kg Cd, addition of 0.2 g/kg S(0) decreased the diffusive gradients in thin films (DGT) extractable Cd by 60.0%. The application of S(0) significantly decreased the concentration of Cd in rice grain by 12.1% (0.1 g/kg) and 36.6% (0.2 g/kg) respectively. The addition of S(0) significantly increased the ratio of Acidobacteria, Bacteroidetes in rice rhizosphere soil. Meanwhile, the ratio of Planctomycetes and Chloroflexi decreased. The results indicated that promoting Fe- and S-reducing and residue decomposition bacterial in the rhizosphere by S(0) may be one biological reason for reducing Cd risk in the soil-rice system. |
format | Online Article Text |
id | pubmed-8169911 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-81699112021-06-03 Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants Sun, Lijuan Song, Ke Shi, Lizheng Duan, Dechao Zhang, Hong Sun, Yafei Qin, Qin Xue, Yong Sci Rep Article Cadmium (Cd) is highly toxic to living organisms and the contamination of Cd in paddy soil in China has received much attention. In the present study, by conducting pot experiment, the influence of S fertilizer (S(0)) on rice growth, iron plaque formation, Cd accumulation in rice plants and bacterial community in rice rhizosphere soil was investigated. The biomass of rice plants was significantly increased by S(0) addition (19.5–73.6%). The addition of S(0) increased the formation of iron plaque by 24.3–45.8%, meanwhile the amount of Cd sequestered on iron plaque increased. In soil treated with 5 mg/kg Cd, addition of 0.2 g/kg S(0) decreased the diffusive gradients in thin films (DGT) extractable Cd by 60.0%. The application of S(0) significantly decreased the concentration of Cd in rice grain by 12.1% (0.1 g/kg) and 36.6% (0.2 g/kg) respectively. The addition of S(0) significantly increased the ratio of Acidobacteria, Bacteroidetes in rice rhizosphere soil. Meanwhile, the ratio of Planctomycetes and Chloroflexi decreased. The results indicated that promoting Fe- and S-reducing and residue decomposition bacterial in the rhizosphere by S(0) may be one biological reason for reducing Cd risk in the soil-rice system. Nature Publishing Group UK 2021-06-01 /pmc/articles/PMC8169911/ /pubmed/34075125 http://dx.doi.org/10.1038/s41598-021-91003-x 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 Sun, Lijuan Song, Ke Shi, Lizheng Duan, Dechao Zhang, Hong Sun, Yafei Qin, Qin Xue, Yong Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants |
title | Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants |
title_full | Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants |
title_fullStr | Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants |
title_full_unstemmed | Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants |
title_short | Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants |
title_sort | influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and cd accumulation in rice plants |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8169911/ https://www.ncbi.nlm.nih.gov/pubmed/34075125 http://dx.doi.org/10.1038/s41598-021-91003-x |
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