Metagenomics-based evaluation of groundwater microbial profiles in response to treated wastewater discharge
N. Zaouri, M.R. Jumat, T. Cheema, P.-Y. Hong,
Environmental Research, Volume 180, p.108835, (2020)
Shotgun metagenomics, Aquifer recharge, Groundwater quality, Water reuse
This study aims to demonstrate the use of metagenomics to assess groundwater quality. Metagenomics revealed a lower alpha diversity for both bacteria and virus in wastewater-exposed groundwater compared to the upstream controls. An increase in the relative abundance of Planctomycetes and Picornaviridae was also observed in wastewater-exposed groundwater. However, comparison of antibiotic resistome cannot clearly differentiate wastewater-exposed groundwater from control. Findings suggest that metagenomics can detect selected microbial signatures indicative of treated wastewater discharge.
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