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The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions
Cadmium (Cd) contamination of agricultural soils poses a potential public health issue for humans. Phytoremediation-based accumulating plants are an effective and sustainable technology for Cadmium remediation of contaminated agricultural soil. The rhizosphere microbiome can promote the growth and C...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9583395/ https://www.ncbi.nlm.nih.gov/pubmed/36275594 http://dx.doi.org/10.3389/fpls.2022.914103 |
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author | Fan, Wenjun Deng, Jinmei Shao, Li Jiang, Shiming Xiao, Tangfu Sun, Weimin Xiao, Enzong |
author_facet | Fan, Wenjun Deng, Jinmei Shao, Li Jiang, Shiming Xiao, Tangfu Sun, Weimin Xiao, Enzong |
author_sort | Fan, Wenjun |
collection | PubMed |
description | Cadmium (Cd) contamination of agricultural soils poses a potential public health issue for humans. Phytoremediation-based accumulating plants are an effective and sustainable technology for Cadmium remediation of contaminated agricultural soil. The rhizosphere microbiome can promote the growth and Cadmium accumulation in hyperaccumulators, but its taxonomic and functional traits remain elusive. The present study used two ecotypes of Sedum alfredii, an accumulating ecotype (AE) and a non-accumulating ecotype (NAE), as model plants to investigate the rhizosphere microbiome assemblages and influence on plant growth under high cadmium conditions. Our results showed that distinct root microbiomes assembled in association with both ecotypes of S. alfredii and that the assemblages were based largely on the lifestyles of the two ecotypes. In addition, we demonstrated that the functions of the microbes inhabiting the rhizosphere soils were closely associated with root-microbe interactions in both ecotypes of S. alfredii. Importantly, our results also demonstrated that the rhizosphere microbiome assembled in the AE rhizosphere soils contributed to plant growth and cadmium uptake under high cadmium conditions through functions such as nitrogen fixation, phosphorus solubilization, indole acetic acid (IAA) synthesis, and siderophore metabolism. However, this phenomenon was not clearly observed in the NAE. Our results suggest that the rhizosphere microbiome plays important roles in biogeochemical nutrient and metal cycling that can contribute to host plant fitness. |
format | Online Article Text |
id | pubmed-9583395 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-95833952022-10-21 The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions Fan, Wenjun Deng, Jinmei Shao, Li Jiang, Shiming Xiao, Tangfu Sun, Weimin Xiao, Enzong Front Plant Sci Plant Science Cadmium (Cd) contamination of agricultural soils poses a potential public health issue for humans. Phytoremediation-based accumulating plants are an effective and sustainable technology for Cadmium remediation of contaminated agricultural soil. The rhizosphere microbiome can promote the growth and Cadmium accumulation in hyperaccumulators, but its taxonomic and functional traits remain elusive. The present study used two ecotypes of Sedum alfredii, an accumulating ecotype (AE) and a non-accumulating ecotype (NAE), as model plants to investigate the rhizosphere microbiome assemblages and influence on plant growth under high cadmium conditions. Our results showed that distinct root microbiomes assembled in association with both ecotypes of S. alfredii and that the assemblages were based largely on the lifestyles of the two ecotypes. In addition, we demonstrated that the functions of the microbes inhabiting the rhizosphere soils were closely associated with root-microbe interactions in both ecotypes of S. alfredii. Importantly, our results also demonstrated that the rhizosphere microbiome assembled in the AE rhizosphere soils contributed to plant growth and cadmium uptake under high cadmium conditions through functions such as nitrogen fixation, phosphorus solubilization, indole acetic acid (IAA) synthesis, and siderophore metabolism. However, this phenomenon was not clearly observed in the NAE. Our results suggest that the rhizosphere microbiome plays important roles in biogeochemical nutrient and metal cycling that can contribute to host plant fitness. Frontiers Media S.A. 2022-10-06 /pmc/articles/PMC9583395/ /pubmed/36275594 http://dx.doi.org/10.3389/fpls.2022.914103 Text en Copyright © 2022 Fan, Deng, Shao, Jiang, Xiao, Sun and Xiao. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Fan, Wenjun Deng, Jinmei Shao, Li Jiang, Shiming Xiao, Tangfu Sun, Weimin Xiao, Enzong The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions |
title | The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions |
title_full | The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions |
title_fullStr | The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions |
title_full_unstemmed | The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions |
title_short | The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions |
title_sort | rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9583395/ https://www.ncbi.nlm.nih.gov/pubmed/36275594 http://dx.doi.org/10.3389/fpls.2022.914103 |
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