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

Balaban, Noa; Yankelzon, Irina; Adar, Eilon; Gelman, Faina; Ronen, Zeev; Bernstein, Anat

doi:10.3390/w11102128

Cited by 11 publications

(8 citation statements)

References 53 publications

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“…This result was in accordance with previous studies [42,48,49] that indicate microbial communities were affected by soil pH. Second, the heavy metal may cause a shift in the bacteria composition [44,50,51]. Song et al, [52] suggested that the heavy metals (Cd, Cu and Zn) change the microbial biomass and the bacterial community.…”

Section: Plos Onesupporting

confidence: 91%

Shift of bacterial communities in heavy metal-contaminated agricultural land during a remediation process

et al. 2021

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Anthropogenic activities accompanied by heavy metal waste threaten the environment. Heavy metal pollution alters the soil microbial community composition, and the microorganisms that adapt to this stress increase in abundance. The remediation process of contaminated soil not only reduces the concentration of heavy metals but also alters the bacterial communities. High-throughput 16S rDNA sequencing techniques were applied to understand the changes in soil microbial communities. Using the remediation approach of the soil mixing, the concentrations of heavy metals in the contaminated areas were diluted and the soil environment was changed. The change of soil environment as a disturbance contributed to the alteration of microbial diversity of the remediated areas. The pH and heavy metals (Cr, Cu, Ni, and Zn) were the most influential factors driving the changes in community structure. The bacterial community structure was significantly different among sample areas. The decrease of heavy metals in soil may be the important factors that changed the microbial composition. This study provides the better understanding of the changes in composition of microbial communities affected by the remediation process in heavy metal-contaminated soil.

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Section: Plos Onesupporting

confidence: 91%

Shift of bacterial communities in heavy metal-contaminated agricultural land during a remediation process

et al. 2021

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“…The pipes' spacing influences the temperature field and closure time of the frozen wall. Balaban et al (2019) [10] present the results of field research related to microbial community in a fractured chalk aquitard below the industrial zone Neot Hovav in Israel, which is polluted by a wide variety of hazardous organic compounds. The spatial variations in indigenous bacterial population and their structure were assessed as a function of distance from the polluting source.…”

Section: Special Issue Overviewmentioning

confidence: 99%

Water Flow, Solute and Heat Transfer in Groundwater

2021

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“…The two brominated flame retardants (BFR), i.e., dibromoneopentyl glycol (DBNPG) and tribromoneopentyl alcohol (TBNPA), are from the abundant pollutants found in the groundwater underlying the Neot Hovav industrial zone, Israel [3]. Numerous organic compounds pollute this aquitard and sustain a rich microbial community, which is spatially changing due to contamination [4]. BFRs are known for their widespread adverse health effects, with TBNPA being defined as a moderate aquatic and human hazard by the EPA [5] and DBNPG defined carcinogenic in rodents [6].…”

Section: Introductionmentioning

confidence: 99%

Degradation of Brominated Organic Compounds (Flame Retardants) by a Four-Strain Consortium Isolated from Contaminated Groundwater

et al. 2021

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Biodegradation of pollutants in the environment is directly affected by microbial communities and pollutant mixture at the site. Lab experiments using bacterial consortia and substrate mixtures are required to increase our understanding of these processes in the environment. One of the deficiencies of working with environmental cultures is the inability to culture and identify the active strains while knowing they are representative of the original environment. In the present study, we tested the aerobic microbial degradation of two brominated flame retardants, tribromo-neopentyl alcohol (TBNPA) and dibromo neopentyl glycol (DBNPG), by an assembled bacterial consortium of four strains. The four strains were isolated and plate-cultured from a consortium enriched from the impacted groundwater underlying the Neot Hovav industrial area (Negev, Israel), in which TBNPA and DBNPG are abundant pollutants. Total degradation (3–7 days) occurred only when the four-strain consortium was incubated together (25 °C; pH −7.2) with an additional carbon source, as both compounds were not utilized as such. Bacterial growth was found to be the limiting factor. A dual carbon–bromine isotope analysis was used to corroborate the claim that the isolated strains were responsible for the degradation in the original enriched consortium, thus ensuring that the isolated four-strain microbial consortium is representative of the actual environmental enrichment.

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

Cited by 11 publications

References 53 publications

Shift of bacterial communities in heavy metal-contaminated agricultural land during a remediation process

Shift of bacterial communities in heavy metal-contaminated agricultural land during a remediation process

Water Flow, Solute and Heat Transfer in Groundwater

Degradation of Brominated Organic Compounds (Flame Retardants) by a Four-Strain Consortium Isolated from Contaminated Groundwater

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