Characteristics of microbial community indicate anthropogenic impact on the sediments along the Yangtze Estuary and its coastal area, China

Guo, Xing-pan; Yang, Yi; Niu, Zuo-shun; Lu, Da-pei; Zhu, Chunhong; Feng, Jingnan; Wu, John; Chen, Yuru; Tou, Fei-yun; Liu, Min; Hou, Lijun

doi:10.1016/j.scitotenv.2018.08.162

Cited by 80 publications

(29 citation statements)

References 55 publications

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“…In summary, the differences in bacterial community composition in different types of industrially The interrelationships among different microbial communities play a pivotal role in maintaining the structure, function and stability of microbial ecosystems [14]. In the network analysis of this study, most nodes belonged to three dominant phyla: Proteobacteria, Actinobacteria and Chloroflexi (Fig.…”

Section: Discussionmentioning

confidence: 73%

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Impact of long-term industrial contamination on the bacterial communities in urban river sediments

Zhang

et al. 2020

Preprint

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Background: The contamination of the aquatic environment of urban rivers with industrial wastewater has affected the abiotic conditions and biological activities of the trophic levels of the ecosystem, particularly sediments. However, most current research about microorganism in urban aquatic environments has focused on indicator bacteria related to feces and organic pollution. Meanwhile, they ignored the interactions among microorganisms. To deeply understand the impact of industrial contamination on microbial community, we study the bacterial community structure and diversity in river sediments under the influence of different types of industrial pollution by Illumina MiSeq high-throughput sequencing technology and conduct a more detailed analysis of microbial community structure through co-occurrence networks. Results: Although these sediment samples have a similar characteristic profile of high bacterial rank, their relative abundance was different, and there were significant differences among different locations. In addition, redundancy analysis indicated that the structure of the bacterial community in river sediments was influenced by a variety of environmental factors. TN, TP, TOC and metals (Cu, Zn and Cd) were the most important driving factors that determined the bacterial community in urban river sediments (P <0.01). According to PICRUSt analysis, the bacterial communities in different locations had similar overall functional profiles. It is worth noting that the 15 functional genes related to xenobiotics biodegradation and metabolism were the most abundant in the same location. The non-random assembly patterns of bacterial composition in different types of industrially polluted sediments were determined by a co-occurrence network. Among them, Denitratisoma, Anaeromyxobacter, and Candidatus Microthrix in the co-occurrence network were identified as keystone genera. The microbial taxa in the same module had closer ecological connections and involved carbon and nitrogen cycles as well as the repair of metal pollution. Conclusions: Our data indicate that long-term potential interactions between different types of industrial pollution and taxa collectively affect the structure of the bacterial community in urban river sediments.

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Section: Discussionmentioning

confidence: 73%

“…Currently, rare genera are being increasingly recognized as crucial components of communities in biochemical processes and community assemblies [73]. Although the abundance of such genera may not have been high, more attention should be paid to them as key nodes in the microbial community [14].…”

Section: Discussionmentioning

confidence: 99%

Impact of long-term industrial contamination on the bacterial communities in urban river sediments

Zhang

et al. 2020

Preprint

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“…Bacterial communities play a pivotal role in the welfare of water environments [1]. However, they vary spatially, depending on different aspects like environmental factors, community adaptation and human activities [2][3][4]. The dynamics of bacterial communities in developing countries are poorly understood [5,6] including the present study area: selected regions of the Bay of Bengal, Bangladesh.…”

Section: Introductionmentioning

confidence: 98%

“…Bacterial community diversity and dynamics, including pathogens [13] and their impacts on water [4], have been characterized through different molecular methods [14,15]. Among different methods, the intensive application of next-generation sequencing (NGS) helps to explore the diversity, dynamics and sensitivity of microorganisms [12,14,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Spatial Modelling of Bacterial Diversity over the Selected Regions in Bangladesh by Next-Generation Sequencing: Role of Water Temperature

et al. 2020

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In this study, a spatial model has been developed to investigate the role of water temperature to the distribution of bacteria over the selected regions in the Bay of Bengal, located in the southern region of Bangladesh using next-generation sequencing. Bacterial concentration, quantitative polymerase chain reactions, and sequencing were performed on water samples and identified Acidobacteria, Actinobacteria, Bacteroidetes, Chlorobi, Chloroflexi, Cyanobacteria, Firmicutes, Nitrospirae, Planctomycetes, Proteobacteria, and Verrucomicrobia. The spatial model tessellated the parts of the Bay of Bengal with hexagons and analyzed the relationship between the distribution of bacteria and water temperature. A geographically weighted regression was used to observe whether water temperature contributed strongly or weakly to the distribution of bacteria. The residuals were examined to assess the model's fitness. The spatial model has the potential to predict the bacterial diversity in the selected regions of Bangladesh.

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“…This inevitably affects the microbial community and its function in the sediments [13]. To adapt to different survival environments, microorganisms usually form a speci c community structure to address various adverse effects [14].…”

Section: Introductionmentioning

confidence: 99%

Impact of long-term industrial contamination on the bacterial communities in urban river sediments

Zhang

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: The contamination of the aquatic environment of urban rivers with industrial wastewater has affected the abiotic conditions and biological activities of the trophic levels of the ecosystem, particularly sediments. However, most current research about microorganism in urban aquatic environments has focused on indicator bacteria related to feces and organic pollution. Meanwhile, they ignored the interactions among microorganisms. To deeply understand the impact of industrial contamination on microbial community, we study the bacterial community structure and diversity in river sediments under the influence of different types of industrial pollution by Illumina MiSeq high-throughput sequencing technology and conduct a more detailed analysis of microbial community structure through co-occurrence networks.Results: The overall community composition and abundance of individual bacterial groups differed between samples. In addition, redundancy analysis indicated that the structure of the bacterial community in river sediments was influenced by a variety of environmental factors. TN, TP, TOC and metals (Cu, Zn and Cd) were the most important driving factors that determined the bacterial community in urban river sediments (P <0.01). According to PICRUSt analysis, the bacterial communities in different locations had similar overall functional profiles. It is worth noting that the 15 functional genes related to xenobiotics biodegradation and metabolism were the most abundant in the same location. The non-random assembly patterns of bacterial composition in different types of industrially polluted sediments were determined by a co-occurrence network. Environmental conditions resulting from different industrial pollutants may play an important role in determining their co-occurrence patterns of these bacterial taxa. Among them, the bacterial taxa involved in carbon and nitrogen cycles in module I were relatively abundant, and the bacterial taxa in module II were involved in the repair of metal pollution.Conclusions: Our data indicate that long-term potential interactions between different types of industrial pollution and taxa collectively affect the structure of the bacterial community in urban river sediments.

show abstract

Characteristics of microbial community indicate anthropogenic impact on the sediments along the Yangtze Estuary and its coastal area, China

Cited by 80 publications

References 55 publications

Impact of long-term industrial contamination on the bacterial communities in urban river sediments

Impact of long-term industrial contamination on the bacterial communities in urban river sediments

Spatial Modelling of Bacterial Diversity over the Selected Regions in Bangladesh by Next-Generation Sequencing: Role of Water Temperature

Impact of long-term industrial contamination on the bacterial communities in urban river sediments

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