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Stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems

Soil pollution is an important stressor affecting biodiversity and ecosystem functioning. However, we lack a holistic understanding of how soil microbial communities respond to heavy metal pollution in agricultural ecosystems. Here, we explored the distribution patterns and inter-kingdom interaction...

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Autores principales: Du, Shuai, Li, Xin-Qi, Hao, Xiuli, Hu, Hang-Wei, Feng, Jiao, Huang, Qiaoyun, Liu, Yu-Rong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723755/
https://www.ncbi.nlm.nih.gov/pubmed/37938257
http://dx.doi.org/10.1038/s43705-022-00156-x
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author Du, Shuai
Li, Xin-Qi
Hao, Xiuli
Hu, Hang-Wei
Feng, Jiao
Huang, Qiaoyun
Liu, Yu-Rong
author_facet Du, Shuai
Li, Xin-Qi
Hao, Xiuli
Hu, Hang-Wei
Feng, Jiao
Huang, Qiaoyun
Liu, Yu-Rong
author_sort Du, Shuai
collection PubMed
description Soil pollution is an important stressor affecting biodiversity and ecosystem functioning. However, we lack a holistic understanding of how soil microbial communities respond to heavy metal pollution in agricultural ecosystems. Here, we explored the distribution patterns and inter-kingdom interactions of entire soil microbiome (including bacteria, fungi, and protists) in 47 paired paddy and upland fields along a gradient of legacy mercury (Hg) pollution. We found that the richness and composition of protistan community had stronger responses to Hg pollution than those of bacterial and fungal communities in both paddy and upland soils. Mercury polluted soils harbored less protistan phototrophs but more protistan consumers. We further revealed that long-term Hg pollution greatly increased network complexity of protistan community than that of bacterial and fungal communities, as well as intensified the interactions between protists and the other microorganisms. Moreover, our results consistently indicated that protistan communities had stronger responses to long-term Hg pollution than bacterial and fungal communities in agricultural soils based on structural equation models and random forest analyses. Our study highlights that soil protists can be used as bioindicators of Hg pollution, with important implications for the assessment of contaminated farmlands and the sustainable management of agricultural ecosystems.
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spelling pubmed-97237552023-01-04 Stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems Du, Shuai Li, Xin-Qi Hao, Xiuli Hu, Hang-Wei Feng, Jiao Huang, Qiaoyun Liu, Yu-Rong ISME Commun Article Soil pollution is an important stressor affecting biodiversity and ecosystem functioning. However, we lack a holistic understanding of how soil microbial communities respond to heavy metal pollution in agricultural ecosystems. Here, we explored the distribution patterns and inter-kingdom interactions of entire soil microbiome (including bacteria, fungi, and protists) in 47 paired paddy and upland fields along a gradient of legacy mercury (Hg) pollution. We found that the richness and composition of protistan community had stronger responses to Hg pollution than those of bacterial and fungal communities in both paddy and upland soils. Mercury polluted soils harbored less protistan phototrophs but more protistan consumers. We further revealed that long-term Hg pollution greatly increased network complexity of protistan community than that of bacterial and fungal communities, as well as intensified the interactions between protists and the other microorganisms. Moreover, our results consistently indicated that protistan communities had stronger responses to long-term Hg pollution than bacterial and fungal communities in agricultural soils based on structural equation models and random forest analyses. Our study highlights that soil protists can be used as bioindicators of Hg pollution, with important implications for the assessment of contaminated farmlands and the sustainable management of agricultural ecosystems. Nature Publishing Group UK 2022-08-09 /pmc/articles/PMC9723755/ /pubmed/37938257 http://dx.doi.org/10.1038/s43705-022-00156-x Text en © The Author(s) 2022 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Du, Shuai
Li, Xin-Qi
Hao, Xiuli
Hu, Hang-Wei
Feng, Jiao
Huang, Qiaoyun
Liu, Yu-Rong
Stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems
title Stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems
title_full Stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems
title_fullStr Stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems
title_full_unstemmed Stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems
title_short Stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems
title_sort stronger responses of soil protistan communities to legacy mercury pollution than bacterial and fungal communities in agricultural systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723755/
https://www.ncbi.nlm.nih.gov/pubmed/37938257
http://dx.doi.org/10.1038/s43705-022-00156-x
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