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Comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation

Karst tiankengs are oases in degraded karst landscapes and act as repositories for biodiversity conservation; however, knowledge about the bacterial and fungal structure and function of the karst tiankeng ecosystems is limited. This study investigated the microbial communities in three different tia...

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Autores principales: Jiang, Cong, Zeng, Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9731917/
https://www.ncbi.nlm.nih.gov/pubmed/36514550
http://dx.doi.org/10.1002/ece3.9615
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author Jiang, Cong
Zeng, Hui
author_facet Jiang, Cong
Zeng, Hui
author_sort Jiang, Cong
collection PubMed
description Karst tiankengs are oases in degraded karst landscapes and act as repositories for biodiversity conservation; however, knowledge about the bacterial and fungal structure and function of the karst tiankeng ecosystems is limited. This study investigated the microbial communities in three different tiankeng (nondegraded, moderately degraded, and heavily degraded tiankeng) by Illumina NovaSeq sequencing. We found that the degradation of karst tiankeng can lead to changes in microbial community structure and functions, while there are differences in bacterial and fungal responses. There were significant differences in bacterial and fungal community composition and beta diversity in the three tiankeng soils. Random molecular ecological network analysis results indicated that a more complex and stable bacterial network existed in nondegraded tiankeng, while more complex fungal networks existed in moderately degraded tiankeng. The keystones of Proteobacteria, Actinobacteria, Acidobacteria, Ascomycota, and Basidiomycota played essential roles in maintaining soil function and stability. The functional profiles revealed that tiankeng habitat changes may affect microbial survival strategies, such as increasing gene abundance associated with the carbon cycle. To our knowledge, this is the first report on bacterial and fungal communities in different degrees of karst tiankeng, which provides crucial insights into our understanding of the microbial communities' structure and potential function in karst tiankeng ecosystems.
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spelling pubmed-97319172022-12-12 Comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation Jiang, Cong Zeng, Hui Ecol Evol Research Articles Karst tiankengs are oases in degraded karst landscapes and act as repositories for biodiversity conservation; however, knowledge about the bacterial and fungal structure and function of the karst tiankeng ecosystems is limited. This study investigated the microbial communities in three different tiankeng (nondegraded, moderately degraded, and heavily degraded tiankeng) by Illumina NovaSeq sequencing. We found that the degradation of karst tiankeng can lead to changes in microbial community structure and functions, while there are differences in bacterial and fungal responses. There were significant differences in bacterial and fungal community composition and beta diversity in the three tiankeng soils. Random molecular ecological network analysis results indicated that a more complex and stable bacterial network existed in nondegraded tiankeng, while more complex fungal networks existed in moderately degraded tiankeng. The keystones of Proteobacteria, Actinobacteria, Acidobacteria, Ascomycota, and Basidiomycota played essential roles in maintaining soil function and stability. The functional profiles revealed that tiankeng habitat changes may affect microbial survival strategies, such as increasing gene abundance associated with the carbon cycle. To our knowledge, this is the first report on bacterial and fungal communities in different degrees of karst tiankeng, which provides crucial insights into our understanding of the microbial communities' structure and potential function in karst tiankeng ecosystems. John Wiley and Sons Inc. 2022-12-08 /pmc/articles/PMC9731917/ /pubmed/36514550 http://dx.doi.org/10.1002/ece3.9615 Text en © 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Jiang, Cong
Zeng, Hui
Comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation
title Comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation
title_full Comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation
title_fullStr Comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation
title_full_unstemmed Comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation
title_short Comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation
title_sort comparison of soil microbial community structure and function for karst tiankeng with different degrees of degradation
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9731917/
https://www.ncbi.nlm.nih.gov/pubmed/36514550
http://dx.doi.org/10.1002/ece3.9615
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