Denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors

Abstract Denitrification is an important part of the nitrogen cycle and the key step to removal of nitrogen in surface-flow wetlands. In this study, we explored space–time analysis with high-throughput sequencing to elucidate the relationships between denitrifying bacteria community structures and e...

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Autores principales:	Jia-ming Wei, Li-juan Cui, Wei Li, Yun-mei Ping, Wan Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8db62dfffb97463ca40f2229852c65b5
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spelling	oai:doaj.org-article:8db62dfffb97463ca40f2229852c65b52021-12-02T11:35:52ZDenitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors10.1038/s41598-021-82438-32045-2322https://doaj.org/article/8db62dfffb97463ca40f2229852c65b52021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82438-3https://doaj.org/toc/2045-2322Abstract Denitrification is an important part of the nitrogen cycle and the key step to removal of nitrogen in surface-flow wetlands. In this study, we explored space–time analysis with high-throughput sequencing to elucidate the relationships between denitrifying bacteria community structures and environmental factors during different seasons. Our results showed that along the flow direction of different processing units, there were dynamic changes in physical and chemical indicators. The bacterial abundance indexes (ACEs) in May, August, and October were 686.8, 686.8, and 996.2, respectively, whereas the Shannon-Weiner indexes were 3.718, 4.303, and 4.432, respectively. Along the flow direction, the denitrifying bacterial abundance initially increased and then decreased subsequently during the same months, although diversity tended to increase. The abundance showed similar changes during the different months. Surface flow wetlands mainly contained the following denitrifying bacteria genus: unclassified Bacteria (37.12%), unclassified Proteobacteria (18.16%), Dechloromonas (16.21%), unranked environmental samples (12.51%), unclassified Betaproteobacteria (9.73%), unclassified Rhodocyclaceae (2.14%), and Rhodanobacter (1.51%). During different seasons, the same unit showed alternating changes, and during the same season, bacterial community structures were influenced by the second genus proportion in different processing units. ACEs were strongly correlated with temperature, dissolved oxygen, and pH. Bacterial diversity was strongly correlated with temperature, electrical conductivity, pH, and oxidation reduction potential. Denitrifying bacteria are greatly affected by environmental factors such as temperature and pH.Jia-ming WeiLi-juan CuiWei LiYun-mei PingWan LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jia-ming Wei Li-juan Cui Wei Li Yun-mei Ping Wan Li Denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors
description	Abstract Denitrification is an important part of the nitrogen cycle and the key step to removal of nitrogen in surface-flow wetlands. In this study, we explored space–time analysis with high-throughput sequencing to elucidate the relationships between denitrifying bacteria community structures and environmental factors during different seasons. Our results showed that along the flow direction of different processing units, there were dynamic changes in physical and chemical indicators. The bacterial abundance indexes (ACEs) in May, August, and October were 686.8, 686.8, and 996.2, respectively, whereas the Shannon-Weiner indexes were 3.718, 4.303, and 4.432, respectively. Along the flow direction, the denitrifying bacterial abundance initially increased and then decreased subsequently during the same months, although diversity tended to increase. The abundance showed similar changes during the different months. Surface flow wetlands mainly contained the following denitrifying bacteria genus: unclassified Bacteria (37.12%), unclassified Proteobacteria (18.16%), Dechloromonas (16.21%), unranked environmental samples (12.51%), unclassified Betaproteobacteria (9.73%), unclassified Rhodocyclaceae (2.14%), and Rhodanobacter (1.51%). During different seasons, the same unit showed alternating changes, and during the same season, bacterial community structures were influenced by the second genus proportion in different processing units. ACEs were strongly correlated with temperature, dissolved oxygen, and pH. Bacterial diversity was strongly correlated with temperature, electrical conductivity, pH, and oxidation reduction potential. Denitrifying bacteria are greatly affected by environmental factors such as temperature and pH.
format	article
author	Jia-ming Wei Li-juan Cui Wei Li Yun-mei Ping Wan Li
author_facet	Jia-ming Wei Li-juan Cui Wei Li Yun-mei Ping Wan Li
author_sort	Jia-ming Wei
title	Denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors
title_short	Denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors
title_full	Denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors
title_fullStr	Denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors
title_full_unstemmed	Denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors
title_sort	denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8db62dfffb97463ca40f2229852c65b5
work_keys_str_mv	AT jiamingwei denitrifyingbacterialcommunitiesinsurfaceflowconstructedwetlandsduringdifferentseasonscharacteristicsandrelationshipswithenvironmentfactors AT lijuancui denitrifyingbacterialcommunitiesinsurfaceflowconstructedwetlandsduringdifferentseasonscharacteristicsandrelationshipswithenvironmentfactors AT weili denitrifyingbacterialcommunitiesinsurfaceflowconstructedwetlandsduringdifferentseasonscharacteristicsandrelationshipswithenvironmentfactors AT yunmeiping denitrifyingbacterialcommunitiesinsurfaceflowconstructedwetlandsduringdifferentseasonscharacteristicsandrelationshipswithenvironmentfactors AT wanli denitrifyingbacterialcommunitiesinsurfaceflowconstructedwetlandsduringdifferentseasonscharacteristicsandrelationshipswithenvironmentfactors
_version_	1718395831378247680

Denitrifying bacterial communities in surface-flow constructed wetlands during different seasons: characteristics and relationships with environment factors

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