Shifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands

ABSTRACT Vegetation represents probably the most crucial step for the ecosystem functions of wetlands, but it is unclear how microbial populations and functions shift along with vegetation. In this study, we found that the richness and diversity of soil bacteria increased with vegetation levels and...

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Autores principales:	Jianing Wang, Jingjing Wang, Zheng Zhang, Zhifeng Li, Zhiguo Zhang, Decun Zhao, Lidong Wang, Feng Lu, Yue-zhong Li
Formato:	article
Lenguaje:	EN
Publicado:	American Society for Microbiology 2020
Materias:	soil bacterial composition Cyanobacteria Gemmatimonadetes omics analyses carbon cycling estuarine coastal wetland Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/9509d72ef37541a2ab7ad705a993651f
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spelling	oai:doaj.org-article:9509d72ef37541a2ab7ad705a993651f2021-12-02T18:23:16ZShifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands10.1128/mSystems.00412-202379-5077https://doaj.org/article/9509d72ef37541a2ab7ad705a993651f2020-06-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/mSystems.00412-20https://doaj.org/toc/2379-5077ABSTRACT Vegetation represents probably the most crucial step for the ecosystem functions of wetlands, but it is unclear how microbial populations and functions shift along with vegetation. In this study, we found that the richness and diversity of soil bacteria increased with vegetation levels and that the community composition was distinctly shifted from bare to vegetative places. The bare land displayed an extremely high abundance of Cyanobacteria as a monospecies genus, while a Gemmatimonadetes genus was predominant as multiple species in all the vegetative wetlands, suggesting their important ecosystem functions and potential mechanisms. Expression of the genes related to photosynthesis was enriched exclusively in bare land. Genes involved in biological organic carbon metabolism and the cycling of main elements (C, N, S, and P) were highly expressed in vegetative wetlands and were mostly included in the metagenome-assembled genome (MAG) of Gemmatimonadetes. Some compounds identified from soil metabolomic results also corresponded to pathways involving these key active genes. Cyanobacteria is thus responsible for the carbon sink in early infertile wetlands, and Gemmatimonadetes plays a crucial role in ecosystem functions in vegetative wetlands. Our results highlight that the soil microbial populations execute ecosystem functions for wetlands and that vegetation is the determinant for the population and functional shifts in the coastal estuarine wetland of the Yellow River Delta. IMPORTANCE Vegetation probably represents the most crucial step for the ecosystem functions of wetlands, but it is unclear how microbial populations and functions shift in pace with the colonization and succession of vegetation. In this study, we found that a Cyanobacteria monospecies genus and a Gemmatimonadetes multispecies genus are fastidiously predominant in the bare and vegetative wetlands of the Yellow River Delta, respectively. Consistently, photosynthesis genes were enriched exclusively in bare land, while genes involved in biological organic carbon metabolism and the cycling of main elements were highly expressed in vegetative wetlands, were mostly included in the MAG of Gemmatimonadetes, and were consistent with soil metabolomic results. Our results provide insight into the adaptive succession of predominant bacterial species and their ecosystem functions in response to the presence of vegetation.Jianing WangJingjing WangZheng ZhangZhifeng LiZhiguo ZhangDecun ZhaoLidong WangFeng LuYue-zhong LiAmerican Society for Microbiologyarticlesoil bacterial compositionCyanobacteriaGemmatimonadetesomics analysescarbon cyclingestuarine coastal wetlandMicrobiologyQR1-502ENmSystems, Vol 5, Iss 3 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	soil bacterial composition Cyanobacteria Gemmatimonadetes omics analyses carbon cycling estuarine coastal wetland Microbiology QR1-502
spellingShingle	soil bacterial composition Cyanobacteria Gemmatimonadetes omics analyses carbon cycling estuarine coastal wetland Microbiology QR1-502 Jianing Wang Jingjing Wang Zheng Zhang Zhifeng Li Zhiguo Zhang Decun Zhao Lidong Wang Feng Lu Yue-zhong Li Shifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands
description	ABSTRACT Vegetation represents probably the most crucial step for the ecosystem functions of wetlands, but it is unclear how microbial populations and functions shift along with vegetation. In this study, we found that the richness and diversity of soil bacteria increased with vegetation levels and that the community composition was distinctly shifted from bare to vegetative places. The bare land displayed an extremely high abundance of Cyanobacteria as a monospecies genus, while a Gemmatimonadetes genus was predominant as multiple species in all the vegetative wetlands, suggesting their important ecosystem functions and potential mechanisms. Expression of the genes related to photosynthesis was enriched exclusively in bare land. Genes involved in biological organic carbon metabolism and the cycling of main elements (C, N, S, and P) were highly expressed in vegetative wetlands and were mostly included in the metagenome-assembled genome (MAG) of Gemmatimonadetes. Some compounds identified from soil metabolomic results also corresponded to pathways involving these key active genes. Cyanobacteria is thus responsible for the carbon sink in early infertile wetlands, and Gemmatimonadetes plays a crucial role in ecosystem functions in vegetative wetlands. Our results highlight that the soil microbial populations execute ecosystem functions for wetlands and that vegetation is the determinant for the population and functional shifts in the coastal estuarine wetland of the Yellow River Delta. IMPORTANCE Vegetation probably represents the most crucial step for the ecosystem functions of wetlands, but it is unclear how microbial populations and functions shift in pace with the colonization and succession of vegetation. In this study, we found that a Cyanobacteria monospecies genus and a Gemmatimonadetes multispecies genus are fastidiously predominant in the bare and vegetative wetlands of the Yellow River Delta, respectively. Consistently, photosynthesis genes were enriched exclusively in bare land, while genes involved in biological organic carbon metabolism and the cycling of main elements were highly expressed in vegetative wetlands, were mostly included in the MAG of Gemmatimonadetes, and were consistent with soil metabolomic results. Our results provide insight into the adaptive succession of predominant bacterial species and their ecosystem functions in response to the presence of vegetation.
format	article
author	Jianing Wang Jingjing Wang Zheng Zhang Zhifeng Li Zhiguo Zhang Decun Zhao Lidong Wang Feng Lu Yue-zhong Li
author_facet	Jianing Wang Jingjing Wang Zheng Zhang Zhifeng Li Zhiguo Zhang Decun Zhao Lidong Wang Feng Lu Yue-zhong Li
author_sort	Jianing Wang
title	Shifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands
title_short	Shifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands
title_full	Shifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands
title_fullStr	Shifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands
title_full_unstemmed	Shifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands
title_sort	shifts in the bacterial population and ecosystem functions in response to vegetation in the yellow river delta wetlands
publisher	American Society for Microbiology
publishDate	2020
url	https://doaj.org/article/9509d72ef37541a2ab7ad705a993651f
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Shifts in the Bacterial Population and Ecosystem Functions in Response to Vegetation in the Yellow River Delta Wetlands

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