Comparative metagenomics demonstrating different degradative capacity of activated biomass treating hydrocarbon contaminated wastewater

Bioresource Technology
Trilok Chandra YadavAtya Kapley

Abstract

This study demonstrates the diverse degradative capacity of activated biomass, when exposed to different levels of total dissolved solids (TDS) using a comparative metagenomics approach. The biomass was collected at two time points to examine seasonal variations. Four metagenomes were sequenced on Illumina Miseq platform and analysed using MG-RAST. STAMP tool was used to analyse statistically significant differences amongst different attributes of metagenomes. Metabolic pathways related to degradation of aromatics via the central and peripheral pathways were found to be dominant in low TDS metagenome, while pathways corresponding to central carbohydrate metabolism, nitrogen, organic acids were predominant in high TDS sample. Seasonal variation was seen to affect catabolic gene abundance as well as diversity of the microbial community. Degradation of model compounds using activated sludge demonstrated efficient utilisation of single aromatic ring compounds in both samples but cyclic compounds were not efficiently utilised by biomass exposed to high TDS.

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Citations

Jul 6, 2016·Frontiers in Microbiology·Mehak BawejaPratyoosh Shukla
May 20, 2017·World Journal of Microbiology & Biotechnology·Ashwinkumar P RudrashettiR A Pandey
Nov 15, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Sampada PuranikHemant J Purohit
Jun 19, 2016·Applied and Environmental Microbiology·Federico M IbarbalzLeonardo Erijman
May 22, 2019·Functional & Integrative Genomics·Niti B JadejaAtya Kapley
Sep 11, 2020·World Journal of Microbiology & Biotechnology·Swapnil Punyapwar, Srikanth Mutnuri
Jun 9, 2020·Frontiers in Microbiology·Shweta Jaiswal, Pratyoosh Shukla
Sep 14, 2019·Applied Microbiology and Biotechnology·Pedro Soares-CastroPedro M Santos
May 18, 2020·Applied Biochemistry and Biotechnology·Trilok Chandra YadavAtya Kapley
Apr 11, 2021·Bulletin of Environmental Contamination and Toxicology·Garima MalikManoj S Paul
Nov 12, 2020·Journal of Agricultural and Food Chemistry·Mi LiXiaoming Zou
Dec 8, 2021·Environmental Monitoring and Assessment·Sashi Prava DeviDhruva Kumar Jha

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