Contribution of heavy metal in driving microbial distribution in a eutrophic river

Wang, Jingting; Yuan, Shu; Tang, Lei; Pan, Xiangdong; Pu, Xunchi; Li, Ran; Shen, Chao

doi:10.1016/j.scitotenv.2019.136295

Cited by 41 publications

(16 citation statements)

References 76 publications

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“…A total of 65.49% of the archaeal community variation could be explained for the sediment sample. The Eh factor with both Cu and TP showed a significant and negative correlation which was consistent with the results from the Pi River [1]. In terms of the physicochemical factors, Methanosarcinia was greatly affected by heavy metal Cu while Methanobacteria was affected by TP.…”

Section: Influences Of Environmental Factors On the Archaeal Communitysupporting

confidence: 87%

“…The high concentration of Cu and Hg at site A corresponded to its high TN and TP. The overall TN concentration was lower than that of the Pi River [1], which was the main source of drinking and industrial water, ranging between 4300 mg/kg to 5300 mg/kg but with a relatively high TP concentration. The Pi River also has a higher oxidation-reduction potential than this in this study, probably due to its severe eutrophication.…”

Section: Physicochemical Parameters and Metal Concentrationsmentioning

confidence: 79%

“…The influences of environmental factors on the archaeal community were evaluated with a redundancy analysis (RDA) or canonical correspondence analysis (CCA) after the variance inflation test (VIF) to select prominent factors (VIF value < 10) with R package vegan [1]. A variance partitioning analysis (VPA) was used to identify and compare the impact of two factor groups (physicochemical factors and heavy metals) on the archaeal community with R package vegan [31].…”

Section: Discussionmentioning

confidence: 99%

“…The sediment pH was determined by a pH meter (solid to water ratio was 1:2.5). The redox potential (ORP) was determined using a potable ORP meter (CT-8022, Kedida, China) [1]. Sediment total nitrogen (TN) was determined by the continuous-flow automated analyzer (San++, Skalar, The Netherlands) after digestion with H 2 SO 4 -H 2 O 2 [29].…”

Section: Physicochemical Parameter and Heavy Metal Analysismentioning

confidence: 99%

“…Urban rivers and lakes play an important role in the natural biochemical cycle, water utilization and disposal [1]. However, rapid industrialization and urbanization have led to the destruction of urban water environments, especially in developing countries.…”

Section: Introductionmentioning

confidence: 99%

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Identifying Microbial Distribution Drivers of Archaeal Community in Sediments from a Black-Odorous Urban River—A Case Study of the Zhang River Basin

Shen

Zhao

Xie

et al. 2021

Water

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Rapid urbanization has destroyed urban water systems and led to blackened and odorous rivers. The heavily polluted rivers are always facing eutrophication and heavy metal pollution, while the combined effects of these environmental factors on the microbial diversity and distribution of the river microbial communities have not been adequately reported, especially the archaeal communities. In this study, we investigated the community structure and microbial distribution of sediment archaeal communities from an urban blackened and odorous river basin of the Zhang river, in Nanling, China. Results showed that the archaeal community from the eight sediment sites have average values of Shannon and Chao1 at 3.4921 and 232.7202, respectively. The community diversity and richness were different among samples. Halobacterota and Euryarchaeota were the most abundant phylum and Crenarchaeota also took up a considerable amount of the archaeal community. To reveal the main environmental drivers of the distribution of archaeal communities in sediment, the environmental physicochemical factors (total nitrogen, total phosphorus, oxidation/reduction potential, nitrate nitrogen, ammonia nitrogen, pH and total organic carbon) and heavy metals (Cr, Ni, Cu, Zn, As, Cd, Pb and Hg) in sediment were determined. A redundancy analysis (RDA) revealed that Eh was the most prominent influencing factor, and As was the most influential heavy metal on the microbial distribution of archaeal communities. Furthermore, a variance partitioning analysis (VPA) was used to identify the impacts of physicochemical factors and heavy metals on the archaeal community distribution. Results showed that heavy metals have higher effects on archaeal community distribution than physicochemical factors. The present study suggested that the heavy metal pollution should be paid more attention in the microbial distribution in heavily polluted urban rivers, and also should be taken into consideration for improving the efficacies of ecological evaluation and remediation.

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Section: Influences Of Environmental Factors On the Archaeal Communitysupporting

confidence: 87%

Section: Physicochemical Parameters and Metal Concentrationsmentioning

confidence: 79%