Effects of Different Types of Human Disturbance on Total and Nitrogen-Transforming Bacteria in Haihe River
Haihe River is the largest water system in North China and is injected into the Bohai Sea in Tianjin City. In this study, different types of human disturbance (urban sewage, industrial pollution, ship disturbance) were selected from the upper reaches of Haihe river Tianjin section down to the estuar...
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MDPI AG
2022-12-01
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| Series: | Life |
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| author | Peiyang Li Tingyu Chen Miao An Ying Zhang Yanying Li Yang Li Jing Wang |
| author_facet | Peiyang Li Tingyu Chen Miao An Ying Zhang Yanying Li Yang Li Jing Wang |
| author_sort | Peiyang Li |
| collection | DOAJ |
| description | Haihe River is the largest water system in North China and is injected into the Bohai Sea in Tianjin City. In this study, different types of human disturbance (urban sewage, industrial pollution, ship disturbance) were selected from the upper reaches of Haihe river Tianjin section down to the estuary that connected with Bohai Sea for evaluation. By metagenomic sequencing, the effects of different types of disturbances on bacteria communities in Haihe sediments were studied, with a special focus on the function of nitrogen-cycling bacteria that were further analyzed through KEGG comparison. By analyzing the physical and chemical characteristics of sediments, results showed that human disturbance caused a large amount of nitrogen input into Haihe River, and different types of human disturbance led to distinct spatial heterogeneity in different sections of Haihe River. The bacteria community was dominated by Proteobacteria, followed by Chloroflexi, Bacteroidetes, Actinobacteria and Acidobacteria. The relative abundance of each phylum varied at different sites as a response to different types of human disturbances. In nitrogen cycling, microorganisms including nitrogen fixation and removal were detected at each site, which indicated the active potential for nitrogen transformation in Haihe River. In addition, a large number of metabolic pathways relating to human diseases were also revealed in urban and pollution sites by function potential, which provided an important basis for the indicative role of urban river ecosystem for public health security. In summary, by evaluating both the ecological role and function potential of bacteria in Haihe River under different types of human disturbance, the knowledge of microorganisms for healthy and disturbed river ecosystems has been broadened, which is also informative for further river management and bioremediation. |
| first_indexed | 2024-03-09T16:11:05Z |
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| id | doaj.art-84bd2f4e2d954424837bb217d51f8344 |
| institution | Directory Open Access Journal |
| issn | 2075-1729 |
| language | English |
| last_indexed | 2024-03-09T16:11:05Z |
| publishDate | 2022-12-01 |
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| series | Life |
| spelling | doaj.art-84bd2f4e2d954424837bb217d51f83442023-11-24T16:13:13ZengMDPI AGLife2075-17292022-12-011212208110.3390/life12122081Effects of Different Types of Human Disturbance on Total and Nitrogen-Transforming Bacteria in Haihe RiverPeiyang Li0Tingyu Chen1Miao An2Ying Zhang3Yanying Li4Yang Li5Jing Wang6Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, Tianjin Normal University, Tianjin 300387, ChinaTianjin Key Laboratory of Animal and Plant Resistance, Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, Tianjin Normal University, Tianjin 300387, ChinaTianjin Key Laboratory of Animal and Plant Resistance, Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, Tianjin Normal University, Tianjin 300387, ChinaTianjin Key Laboratory of Animal and Plant Resistance, Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, Tianjin Normal University, Tianjin 300387, ChinaTianjin Key Laboratory of Animal and Plant Resistance, Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, Tianjin Normal University, Tianjin 300387, ChinaKey Laboratory of Environmental Protection Technology on Water Transport, National Engineering Research Center of Port Hydraulic Construction Technology, Ministry of Transport, Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, ChinaTianjin Key Laboratory of Animal and Plant Resistance, Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, Tianjin Normal University, Tianjin 300387, ChinaHaihe River is the largest water system in North China and is injected into the Bohai Sea in Tianjin City. In this study, different types of human disturbance (urban sewage, industrial pollution, ship disturbance) were selected from the upper reaches of Haihe river Tianjin section down to the estuary that connected with Bohai Sea for evaluation. By metagenomic sequencing, the effects of different types of disturbances on bacteria communities in Haihe sediments were studied, with a special focus on the function of nitrogen-cycling bacteria that were further analyzed through KEGG comparison. By analyzing the physical and chemical characteristics of sediments, results showed that human disturbance caused a large amount of nitrogen input into Haihe River, and different types of human disturbance led to distinct spatial heterogeneity in different sections of Haihe River. The bacteria community was dominated by Proteobacteria, followed by Chloroflexi, Bacteroidetes, Actinobacteria and Acidobacteria. The relative abundance of each phylum varied at different sites as a response to different types of human disturbances. In nitrogen cycling, microorganisms including nitrogen fixation and removal were detected at each site, which indicated the active potential for nitrogen transformation in Haihe River. In addition, a large number of metabolic pathways relating to human diseases were also revealed in urban and pollution sites by function potential, which provided an important basis for the indicative role of urban river ecosystem for public health security. In summary, by evaluating both the ecological role and function potential of bacteria in Haihe River under different types of human disturbance, the knowledge of microorganisms for healthy and disturbed river ecosystems has been broadened, which is also informative for further river management and bioremediation.https://www.mdpi.com/2075-1729/12/12/2081Haihe Riverhuman disturbancemicrobial diversityfunction potentialnitrogen cycle |
| spellingShingle | Peiyang Li Tingyu Chen Miao An Ying Zhang Yanying Li Yang Li Jing Wang Effects of Different Types of Human Disturbance on Total and Nitrogen-Transforming Bacteria in Haihe River Life Haihe River human disturbance microbial diversity function potential nitrogen cycle |
| title | Effects of Different Types of Human Disturbance on Total and Nitrogen-Transforming Bacteria in Haihe River |
| title_full | Effects of Different Types of Human Disturbance on Total and Nitrogen-Transforming Bacteria in Haihe River |
| title_fullStr | Effects of Different Types of Human Disturbance on Total and Nitrogen-Transforming Bacteria in Haihe River |
| title_full_unstemmed | Effects of Different Types of Human Disturbance on Total and Nitrogen-Transforming Bacteria in Haihe River |
| title_short | Effects of Different Types of Human Disturbance on Total and Nitrogen-Transforming Bacteria in Haihe River |
| title_sort | effects of different types of human disturbance on total and nitrogen transforming bacteria in haihe river |
| topic | Haihe River human disturbance microbial diversity function potential nitrogen cycle |
| url | https://www.mdpi.com/2075-1729/12/12/2081 |
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