The change of microbial community from chlorinated solvent-contaminated groundwater after biostimulation using the metagenome analysis

Kao, C. L.; Liao, Hung Yu; Chien, Chih-Ching; Tseng, Yi Kuan; Tang, Petrus; Lin, Chih En; Chen, Ssu Ching

doi:10.1016/j.jhazmat.2015.09.047

Cited by 80 publications

(30 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sulfuricurvum as another predominant genus currently contains only one characterized isolate, Sulfuricurvum kujiense strain YK‐1, an obligate chemolithoautotroph (Kodama and Watanabe, ) that grows by oxidation of reduced sulfur compounds coupled to nitrate and oxygen (microaerophilic condition) respiration (Kodama and Watanabe, 2003). Although dechlorination or syntrophic interactions with OHRB by this strain are not reported, Sulfuricurvum was detected at TCE contaminated sites (Tsai et al ., ; Kao et al ., ) and in 1,2‐dichloroethane dechlorinating enrichment cultures (Merlino et al ., ). Another predominant genus in pre‐biostimulation samples was Flavobacterium whose members play an important role in decomposition of organic materials by hydrolysing organic polymers such as proteins and polysaccharides produced from cell debris in oligotrophic environments (Bernardet and Grimont, ; Bernardet et al ., ).…”

Section: Discussionmentioning

confidence: 99%

Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol

Atashgahi

Zheng

et al. 2016

Environmental Microbiology

View full text Add to dashboard Cite

Biostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study, glycerol was injected in an aquifer contaminated with cis-dichloroethene (cDCE), and geochemical and microbial shifts were followed for 265 days. Consistent with anoxic conditions and sulfate reduction after biostimulation, MiSeq 16S rRNA gene sequencing revealed temporarily increased relative abundance of Firmicutes, Bacteriodetes and sulfate reducing Deltaproteobacteria. In line with C cDCE enrichment and increased Dehalococcoides mccartyi (Dcm) numbers, dechlorination was observed toward the end of the field experiment, albeit being incomplete with accumulation of vinyl chloride. This was concurrent with (i) decreased concentrations of dissolved organic carbon (DOC), reduced relative abundances of fermenting and sulfate reducing bacteria that have been suggested to promote Dcm growth by providing electron donor (H ) and essential corrinoid cofactors, (ii) increased sulfate concentration and increased relative abundance of Epsilonproteobacteria and Deferribacteres as putative oxidizers of reduced sulfur compounds. Strong correlations of DOC, relative abundance of fermenters and sulfate reducers, and dechlorination imply the importance of syntrophic interactions to sustain robust dechlorination. Tracking microbial and environmental parameters that promote/preclude enhanced reductive dechlorination should aid development of sustainable bioremediation strategies.

show abstract

Section: Discussionmentioning

confidence: 99%

Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol

Atashgahi

Zheng

et al. 2016

Environmental Microbiology

View full text Add to dashboard Cite

show abstract

“…Groundwater is known to harbour a wide range of specialist taxa which are difficult to assess using conventional survey methods due to the inaccessibility of these habitats (Danielopol et al, 2000). Groundwater microorganism metabarcoding studies have shown high fungal (Sohlberg et al, 2015) and bacterial (Kao et al, 2016) (Valiere & Taberlet, 2000). Environmental DNA metabarcoding of water from glacial run-off will also likely be a valuable tool to survey animal and plant richness living in glacial and subglacial habitats, which are undergoing dramatic change because of climate warming (Giersch, Hotaling, Kovach, Jones, & Muhlfeld, 2017).…”

Section: Species Relative Abundance: Edna Metabarcoding Compared Wimentioning

confidence: 99%

Section: Species Relative Abundance: Edna Metabarcoding Compared Wimentioning

confidence: 99%

Environmental DNA metabarcoding: Transforming how we survey animal and plant communities

et al. 2017

View full text Add to dashboard Cite

The genomic revolution has fundamentally changed how we survey biodiversity on earth. High-throughput sequencing ("HTS") platforms now enable the rapid sequencing of DNA from diverse kinds of environmental samples (termed "environmental DNA" or "eDNA"). Coupling HTS with our ability to associate sequences from eDNA with a taxonomic name is called "eDNA metabarcoding" and offers a powerful molecular tool capable of noninvasively surveying species richness from many ecosystems. Here, we review the use of eDNA metabarcoding for surveying animal and plant richness, and the challenges in using eDNA approaches to estimate relative abundance. We highlight eDNA applications in freshwater, marine and terrestrial environments, and in this broad context, we distill what is known about the ability of different eDNA sample types to approximate richness in space and across time. We provide guiding questions for study design and discuss the eDNA metabarcoding workflow with a focus on primers and library preparation methods.We additionally discuss important criteria for consideration of bioinformatic filtering of data sets, with recommendations for increasing transparency. Finally, looking to the future, we discuss emerging applications of eDNA metabarcoding in ecology, conservation, invasion biology, biomonitoring, and how eDNA metabarcoding can empower citizen science and biodiversity education.--

show abstract

“…Thousands of groundwater systems have been contaminated across the world due primarily to leakage and spills of hazardous materials to the subsurface (Condon et al 2015;Kao et al 2015;Adetutu et al 2015;Mumford et al 2016). Such contamination can pose significant risks to environmental quality and human health if no effective remediation actions were taken (Scheier et al 2009;Enzenhoefer et al 2015;Islam et al 2016).…”

Section: Introductionmentioning

confidence: 99%

A bilevel groundwater management model with minimization of stochastic health risks at the leader level and remediation cost at the follower level

Chen

et al. 2016

Stoch Environ Res Risk Assess

View full text Add to dashboard Cite

Traditional single-objective programs cannot deal with the tradeoffs between the decision makers who represent different perspectives and have inconsistent decision goals. Multi-objective ones can hardly represent a complex dominant-subordinate relationship between the leader and the follower. This study presents a new bilevel programming model with considering leader-follower-related health-risk and economic goals for optimal groundwater remediation management. The bilevel model is formulated by integrating health-risk assessment and environmental standards (the leader or the environmental concern) and remediation cost (the follower or the economic concern) into a general framework. In addition, stochastic uncertainty in health risk assessment is considered into the decision-making process. The developed bilevel model is then applied to a petroleum-contaminated aquifer in Canada. Results indicate that the performance of bilevel programming can not only meet the low remediation cost as the expectation from the follower but also simultaneously conform to the low contamination level as the expectation from the leader. Furthermore, comparative analyses show that the bilevel model with two-level concerns has the advantage of maximizing the interests and satisfaction degrees of decision makers, which can avoid the extreme results generated from the single-level models.

show abstract

The change of microbial community from chlorinated solvent-contaminated groundwater after biostimulation using the metagenome analysis

Cited by 80 publications

References 32 publications

Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol

Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol

Environmental DNA metabarcoding: Transforming how we survey animal and plant communities

A bilevel groundwater management model with minimization of stochastic health risks at the leader level and remediation cost at the follower level

Contact Info

Product

Resources

About