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Decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland
INTRODUCTION: Grasslands harbor complex bacterial communities, whose dynamic interactions are considered critical for organic matter and nutrient cycling. However, less is known about how changes in precipitation impact bacterial interactions. METHODS: We conducted precipitation manipulation experim...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9815162/ https://www.ncbi.nlm.nih.gov/pubmed/36620016 http://dx.doi.org/10.3389/fmicb.2022.1031496 |
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author | Wang, Jinlong Wang, Chunjuan Zhang, Jinwei Wu, Xuefeng Hou, Yu Zhao, Guiyun Sun, Haiming |
author_facet | Wang, Jinlong Wang, Chunjuan Zhang, Jinwei Wu, Xuefeng Hou, Yu Zhao, Guiyun Sun, Haiming |
author_sort | Wang, Jinlong |
collection | PubMed |
description | INTRODUCTION: Grasslands harbor complex bacterial communities, whose dynamic interactions are considered critical for organic matter and nutrient cycling. However, less is known about how changes in precipitation impact bacterial interactions. METHODS: We conducted precipitation manipulation experiments in the Eastern Eurasian Steppe in China and constructed co-occurrence networks for bacterial communities. RESULTS: The network topological features of the bacterial communities exhibited considerable differences among increased precipitation, control, and decreased precipitation gradients. The bacterial co-occurrence pattern in the increased precipitation gradient was the most complex and stable, with a large network size, followed by those of the control and decreased precipitation gradients. Soil moisture (SM) was the primary factor influencing the complexity, size, and stability of bacterial networks across different precipitation gradients, followed by total nitrogen (TN), belowground biomass, aboveground biomass, and total carbon (TC). DISCUSSION: Our results indicate that drought conditions reduce the complexity and stability of the bacterial community, and future changes in precipitation will greatly reshape bacterial interactions in semiarid grasslands. Overall, these findings could enhance our understanding of how microbes respond to changing precipitation patterns by regulating their interactions in water-limited ecosystems and will improve our ability to predict the impacts of precipitation regime change on ecosystem nutrient cycling and feedback between ecosystem processes and global climate change. |
format | Online Article Text |
id | pubmed-9815162 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-98151622023-01-06 Decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland Wang, Jinlong Wang, Chunjuan Zhang, Jinwei Wu, Xuefeng Hou, Yu Zhao, Guiyun Sun, Haiming Front Microbiol Microbiology INTRODUCTION: Grasslands harbor complex bacterial communities, whose dynamic interactions are considered critical for organic matter and nutrient cycling. However, less is known about how changes in precipitation impact bacterial interactions. METHODS: We conducted precipitation manipulation experiments in the Eastern Eurasian Steppe in China and constructed co-occurrence networks for bacterial communities. RESULTS: The network topological features of the bacterial communities exhibited considerable differences among increased precipitation, control, and decreased precipitation gradients. The bacterial co-occurrence pattern in the increased precipitation gradient was the most complex and stable, with a large network size, followed by those of the control and decreased precipitation gradients. Soil moisture (SM) was the primary factor influencing the complexity, size, and stability of bacterial networks across different precipitation gradients, followed by total nitrogen (TN), belowground biomass, aboveground biomass, and total carbon (TC). DISCUSSION: Our results indicate that drought conditions reduce the complexity and stability of the bacterial community, and future changes in precipitation will greatly reshape bacterial interactions in semiarid grasslands. Overall, these findings could enhance our understanding of how microbes respond to changing precipitation patterns by regulating their interactions in water-limited ecosystems and will improve our ability to predict the impacts of precipitation regime change on ecosystem nutrient cycling and feedback between ecosystem processes and global climate change. Frontiers Media S.A. 2022-12-22 /pmc/articles/PMC9815162/ /pubmed/36620016 http://dx.doi.org/10.3389/fmicb.2022.1031496 Text en Copyright © 2022 Wang, Wang, Zhang, Wu, Hou, Zhao and Sun. 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 | Microbiology Wang, Jinlong Wang, Chunjuan Zhang, Jinwei Wu, Xuefeng Hou, Yu Zhao, Guiyun Sun, Haiming Decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland |
title | Decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland |
title_full | Decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland |
title_fullStr | Decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland |
title_full_unstemmed | Decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland |
title_short | Decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland |
title_sort | decreased precipitation reduced the complexity and stability of bacterial co-occurrence patterns in a semiarid grassland |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9815162/ https://www.ncbi.nlm.nih.gov/pubmed/36620016 http://dx.doi.org/10.3389/fmicb.2022.1031496 |
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