Microbial communities in riparian soils of a settling pond for mine drainage treatment

Fan, Miaochun; Lin, Yanbing; Huo, Haibo; Liu, Yang; Zhao, Liang; Wang, En Tao; Chen, Weimin; Wei, Gehong

doi:10.1016/j.watres.2016.03.061

Cited by 66 publications

(24 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, in the early stage of restoration (5 years), such correlations were not found. Therefore, we could assess the state of soil restoration in grassland via these indicator species and their predicted correlations with edaphic variables; this would be similar to using species to gauge mine drainage impacts on surrounding soil environments (Fan et al, ). In addition, we could try to isolate these indicator or keystone species to construct beneficial assembly communities and inoculate them into degraded soil to hasten grassland restoration (Wubs, van der Putten, Bosch, & Bezemer, ).…”

Section: Discussionmentioning

confidence: 99%

Temporal and spatial succession and dynamics of soil fungal communities in restored grassland on the Loess Plateau in China

et al. 2019

Self Cite

View full text Add to dashboard Cite

Natural secondary succession of degraded soil has improved the ecological environment of the Loess Plateau, profoundly influencing the succession and dynamics of soil fungal communities restored grasslands in particular. This chronosequence and the varied topography of the Loess Plateau thus provide a unique opportunity to synchronously investigate the variation of soil quality and fungal communities as they develop over time and space. Here, we used high-throughput sequencing of the ITS rRNA gene region to analyze the fungal community at a local scale. Edaphic variables and fungal community characteristics were compared among three restoration durations (5, 20, and 30 years), two soil layers (topsoil and subsoil), and different topographic factors (slope positions and aspects). Edaphic variables displayed varying patterns with significant differences among restoration durations and soil layers, but no such topographic patterns were found. As succession proceeded, alpha and beta diversities of fungal communities changed as space changed; whereas, over time, the discrepancy in community composition between the two soil layers declined.Constructed co-occurrence networks of edaphic variables combined with fungal community composition and distribution patterns based on indicator and keystone species also varied among three durations. Fungal trophic guilds showed a contrasting distribution between the two soil layers, but they closely followed the soil nutrient conditions and metabolic characteristics of keystone species. Our results demonstrated that predictable spatial variation occurs in soil fungal communities in tandem with temporal succession and dynamics of indicator and keystone species in restored grassland on the Loess Plateau.

show abstract

Section: Discussionmentioning

confidence: 99%

Temporal and spatial succession and dynamics of soil fungal communities in restored grassland on the Loess Plateau in China

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…The production plant area is dominated at the Phyla level by Proteobacteria (72.7%), Bacteriodetes (8.4%), and Firmicutes (6.0%), with all other phyla beneath 2%. The dominance of these three phyla in the most contaminated area can be attributed to their ability to adapt to contaminated and diverse environments [37][38][39]. With contaminant load decrease, more phyla with abundance greater than 2% appear in Wadi Hovav; Proteobacteria were (49.3%), Bacteriodetes (8.4%), six phyla had an abundance between 2-8%, and all the rest were <2%.…”

Section: Microbial Community Compositionmentioning

confidence: 99%

“…These are due to a complex hydrological regime leading to the groundwater chemical composition of certain boreholes, which does not correlate to their geographical location [4]. It has been shown that microbial communities are largely affected by environmental parameters, including contaminant composition and concentration [37][38][39]. In the Neot Hovav aquitard, numerous organic contaminants are found [43].…”

Section: Spatial Distribution Of Microbial Community Affected By Envimentioning

confidence: 99%

The Spatial Distribution of the Microbial Community in a Contaminated Aquitard below an Industrial Zone

Balaban

Yankelzon

Adar

et al. 2019

Water

View full text Add to dashboard Cite

The industrial complex Neot Hovav, in Israel, is situated above an anaerobic fractured chalk aquitard, which is polluted by a wide variety of hazardous organic compounds. These include volatile and non-volatile, halogenated, organic compounds. In this study, we characterized the indigenous bacterial population in 17 boreholes of the groundwater environment, while observing the spatial variations in the population and structure as a function of distance from the polluting source. In addition, the de-halogenating potential of the microbial groundwater population was tested through a series of lab microcosm experiments, thus exemplifying the potential and limitations for bioremediation of the site. In all samples, the dominant phylum was Proteobacteria. In the production plant area, the non-obligatory organo-halide respiring bacteria (OHRB) Firmicutes Phylum was also detected in the polluted water, in abundancies of up to 16 %. Non-metric multidimensional scaling (NMDS) analysis of the microbial community structure in the groundwater exhibited clusters of distinct populations following the location in the industrial complex and distance from the polluting source. Dehalogenation of halogenated ethylene was demonstrated in contrast to the persistence of brominated alcohols. Persistence is likely due to the chemical characteristics of brominated alcohols, and not because of the absence of active de-halogenating bacteria.

show abstract

“…For example, heavy metal contamination conditions were evaluated for the Pearl River estuary by collecting riparian soil samples ( Bai et al, 2011b ). In another study, the effects of heavy metals on microbial communities were assessed using riparian soils around a settling pond for mine drainage treatment ( Fan et al, 2016 ). Numerous studies have revealed that microbes are much more sensitive to heavy metals than plants in the same area ( Giller et al, 2009 ; Sun et al, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, microbial community structure could also be a good indicator for revealing the severity of heavy metal contamination. For instance, Firmicutes and Bacteroidetes are the main phyla in the Cr contaminated environments ( Miao et al, 2015 ; Zhang et al, 2017 ), whereas another study showed that influent zones, which possess higher heavy metal concentrations, contained more Firmicutes, Bacteroidetes , and Actinobacteria in in comparison to upstream, downstream, and effluent zones did ( Fan et al, 2016 ). Microorganisms exposed to strong selective pressures from heavy metal contaminated environments can process corresponding function for the ecosystem ( Epelde et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Microbial Community Structure and Function Indicate the Severity of Chromium Contamination of the Yellow River

Pei

et al. 2018

Front. Microbiol.

View full text Add to dashboard Cite

The Yellow River is the most important water resource in northern China. In the recent past, heavy metal contamination has become severe due to industrial processes and other anthropogenic activities. In this study, riparian soil samples with varying levels of chromium (Cr) pollution severity were collected along the Gansu industrial reach of the Yellow River, including samples from uncontaminated sites (XC, XGU), slightly contaminated sites (LJX, XGD), and heavily contaminated sites (CG, XG). The Cr concentrations of these samples varied from 83.83 mg⋅kg-1 (XGU) to 506.58 mg⋅kg-1 (XG). The chromate [Cr (VI)] reducing ability in the soils collected in this study followed the sequence of the heavily contaminated > slightly contaminated > the un-contaminated. Common Cr remediation genes chrA and yieF were detected in the XG and CG samples. qRT-PCR results showed that the expression of chrA was up-regulated four and threefold in XG and CG samples, respectively, whereas the expression of yieF was up-regulated 66- and 7-fold in the same samples after 30 min treatment with Cr (VI). The copy numbers of chrA and yieF didn’t change after 35 days incubation with Cr (VI). The microbial communities in the Cr contaminated sampling sites were different from those in the uncontaminated samples. Especially, the relative abundances of Firmicutes and Bacteroidetes were higher while Actinobacteria was lower in the contaminated group than uncontaminated group. Further, potential indicator species, related to Cr such as Cr-remediation genera (Geobacter, PSB-M-3, Flavobacterium, and Methanosarcina); the Cr-sensitive genera (Skermanella, Iamia, Arthrobacter, and Candidatus Nitrososphaera) were also identified. These data revealed that Cr shifted microbial composition and function. Further, Cr (VI) reducing ability could be related with the expression of Cr remediation genes.

show abstract

Microbial communities in riparian soils of a settling pond for mine drainage treatment

Cited by 66 publications

References 54 publications

Temporal and spatial succession and dynamics of soil fungal communities in restored grassland on the Loess Plateau in China

Temporal and spatial succession and dynamics of soil fungal communities in restored grassland on the Loess Plateau in China

The Spatial Distribution of the Microbial Community in a Contaminated Aquitard below an Industrial Zone

Microbial Community Structure and Function Indicate the Severity of Chromium Contamination of the Yellow River

Contact Info

Product

Resources

About