Bacterial, archaeal, and fungal community responses to acid mine drainage-laden pollution in a rice paddy soil ecosystem

Wang, Han; Zeng, Yufei; Guo, Chuling; Bao, Yanping; Lu, Guining; Reinfelder, John R.; Dang, Zhi

doi:10.1016/j.scitotenv.2017.10.224

Cited by 115 publications

(62 citation statements)

References 52 publications

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“…Candidatus Solibacter spp. are slow-growing chemoorganotrophs that play a key role in the C cycle in terrestrial soil [63,64]. Furthermore, a recent study reported that Candidatus Solibacter spp.…”

Section: Robustness Of and Key Genera In Microbial Communitiesmentioning

confidence: 99%

Natural Farming Improves Soil Quality and Alters Microbial Diversity in a Cabbage Field in Japan

Liao

Huang

2019

Sustainability

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Natural farming (NF), an environmentally friendly agricultural practice similar to organic farming, was developed in Japan. Unlike conventional farming, little is known about the influence of NF on soil microbial communities, especially the surface soil. We therefore compared the effect of seven years’ conventional practice (CP), conventional practice without chemicals (CF), and NF on soil properties and microbial community structure at two soil depths (0–10, 10–20 cm) in an experimental cabbage field. Both soil depth and agricultural practice significantly influenced edaphic measures and microbial community structure. NF improved bulk density, pH, electrical conductivity, urease activity, and nitrate reductase activity in topsoil; similar trends were observed in deeper soil. Pyrosequencing demonstrated that the use of pesticides in conventional farming (CP) led to lower microbial abundance and diversity in topsoil than CF. Similarly, NF increased microbial abundance compared to CP. However, distinct taxa were present in the topsoil, but not deeper soil, in each treatment. CP-enriched microbial genera may be related to plant pathogens (e.g., Erwinia and Brenneria) and xenobiotic degraders (e.g., Sphingobacterium and Comamonas). The microbial community structure of NF was distinct to CP/CF, with enrichment of Pedomicrobium and Solirubrobacter, which may prefer stable soil conditions. Network analysis of dominant genera confirmed the more stable, complex microbial network structure of the 0–10 cm than 10–20 cm layer. Flavisolibacter/Candidatus Solibacter and Candidatus Nitrososphaera/Leuconostoc are potentially fundamental taxa in the 0–10 cm and 10–20 cm layer networks, respectively. Overall, we show that NF positively affects soil quality and microbial community composition within sustainable farming systems.

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Section: Robustness Of and Key Genera In Microbial Communitiesmentioning

confidence: 99%

Natural Farming Improves Soil Quality and Alters Microbial Diversity in a Cabbage Field in Japan

Liao

Huang

2019

Sustainability

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“…Inadequately treated AMD is a very widespread environmental problem that directly affects the healthy development of the mining industry [13]. Many researchers have studied environmental problems in soil and aquatic ecosystems that have arisen from acid mine drainage in China and elsewhere [5,14,15,16,17,18]. In fact, soil that has been polluted by iron and sulfate has attracted extensive attention around the world.…”

Section: Introductionmentioning

confidence: 99%

Migration and Fate of Acid Mine Drainage Pollutants in Calcareous Soil

Liu

Qiao

Zhou

et al. 2018

IJERPH

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As a major province of mineral resources in China, Shanxi currently has 6000 mines of various types, and acid mine drainage (AMD) is a major pollutant from the mining industry. Calcareous soil is dominant in western North China (including the Shanxi Province), therefore, clarifying the migration behavior of the main AMD pollutants (H+, S, Fe, heavy metals) in calcareous soil is essential for remediating AMD-contaminated soil in North China. In this study, the migration behavior of the main pollutants from AMD in calcareous soil was investigated using soil columns containing 20 cm of surficial soil to which different volumes of simulated AMD were added in 20 applications. Filtrate that was discharged from the soil columns and the soil samples from the columns were analyzed. Almost all of the Fe ions (>99%) from the AMD were intercepted in the 0–20 cm depth of the soil. Although >80% of SO42− was retained, the retention efficiency of the soil for SO42− was lower than it was for Fe. Cu, as a representative of heavy metals that are contained in AMD, was nearly totally retained by the calcareous soil. However, Cu had a tendency to migrate downward with the gradual acidification of the upper soil. In addition, CaCO3 was transformed into CaSO4 in AMD-contaminated soil. The outcomes of this study are valuable for understanding the pollution of calcareous soil by AMD and can provide key parameters for remediating AMD-contaminated soil.

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“…We also detected several other functions related to the exchange of electron acceptors and anaerobic transformation of waste. The synthrophic groups Synergistetes, Parvachaeota, and Chloro exi play important roles in anaerobic processes [10,33,34]. According to [33], the predominance of these methanogenic groups indicates a syntrophic relationship with other bacterial groups.…”

Section: Discussionmentioning

confidence: 99%

“…In BW tanks, microorganisms such as the anammox group are responsible for the biological and catalytic processes involved in nitrogen removal (anaerobic ammonium oxidation), while bacteria from the Ureibacillus genus can degrade organic matter [8,9]. Based on 16S rRNA gene analyses, these processes are associated with different microbes (nitrite oxidation bacteria) that express functional genes (copper-containing nitrite reductase, nitrous oxide reductase, sulfate reductase) enabling the removal of toxins, contaminants and some nutrients [7,10]. In addition, several studies have reported that decentralized systems e ciently reduce pathogens, including bacteria (Salmonella and E. coli) [11], protozoans (Giardia spp.)…”

Section: Introductionmentioning

confidence: 99%

On-Site Blackwater Treatment Fosters Microbial Groups and Functions to Efficiently and Robustly Recover Carbon and Nutrients

Kuramae

Dimitrov

Silva

et al. 2020

Preprint

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Background: Wastewater is considered as a renewable resource water and energy. An advantage of decentralized sanitation systems is the separation of the blackwater (BW) stream, which is highly contaminated with human pathogens, from the remaining household water. However, the composition and functions of the microbial community in BW are not known. In this study, we used shotgun metagenomics to assess the dynamics of microbial community structure and function throughout a new BW anaerobic digestion system installed at The Netherlands Institute of Ecology. Samples from the influent (BW), primary effluent (anaerobic digested BW), sludge and final effluent of the pilot upflow anaerobic sludge blanket (UASB) reactor and microalgae pilot tubular photobioreactor (PBR) were analyzed.Results: Our results showed a decrease in microbial richness and diversity followed by a decrease in functional complexity and co-occurrence along the different modules of the bioreactor. The microbial diversity and function decrease were reflected both changes in substrate composition and wash conditions. The most prevalent core functions in influent (BW) were related to metabolism of carbohydrates, response to chemicals and drugs, and nitrogen. The core functions in anaerobic digested BW and upflow anaerobic sludge blanket reactor were related to response to stress, viral processes and iron-sulfur metabolism. Methanogenesis-related functions were most abundant in upflow anaerobic sludge blanket reactor. Effluent from tubular photobioreactor presented high abundances of functions related to nitrogen utilization, metal ion binding and antibiotic biosynthetic processes. Interestingly, the abundance of sequences related to ‘pathogenesis’ decreased from influent BW to SP1 to effluent from tubular photobioreactor. Our wastewater treatment system also decreased potential microbial functions related to pathogenesis. Conclusions: The new sanitation system studied here fosters microbial groups and functions that allow the system to efficiently and robustly recover carbon and nutrients while reducing pathogenic groups, ultimately generating a final effluent safe for discharge and reuse.

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Bacterial, archaeal, and fungal community responses to acid mine drainage-laden pollution in a rice paddy soil ecosystem

Cited by 115 publications

References 52 publications

Natural Farming Improves Soil Quality and Alters Microbial Diversity in a Cabbage Field in Japan

Natural Farming Improves Soil Quality and Alters Microbial Diversity in a Cabbage Field in Japan

Migration and Fate of Acid Mine Drainage Pollutants in Calcareous Soil

On-Site Blackwater Treatment Fosters Microbial Groups and Functions to Efficiently and Robustly Recover Carbon and Nutrients

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