title: Microbial diversity in an anaerobic digester with biogeographical proximity to geothermally active region.
abstract: Anaerobic digestion of agricultural biomass or wastes can offer renewable energy, to help meet the rise in energy demands. The performance of an anaerobic digester considerably depends upon the complex interactions between bacterial and archaeal microbiome, which is greatly influenced by environmental factors. In the present study, we evaluate a microbial community of digester located at two different geographical locations, to understand whether the biogeographical proximity of a digester to a geothermally active region has any influence on microbial composition. The comparative microbial community profiling, highlights coexistence of specific bacterial and archaeal representatives (especially, Prosthecochloris sp., Conexibacter sp., Crenarchaeota isolate (Caldivirga sp.), Metallosphaera sp., Pyrobaculum sp. and Acidianus sp.) in a digester with close proximity to geothermally active region (Site I) and their absence in a digester located far-off from geothermally active region (Site II). A Sörensen's index of similarity of 83.33% and 66.66% for bacterial and archaeal community was observed in both the reactors, respectively.
authors.affiliation: a Department of Biotechnology and Bioinformatics , Jaypee University of Information Technology , Waknaghat, Solan, India.
authors.forename: Rishi
authors.initials: R
authors.lastname: Mahajan
authors.affiliation: b Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences , 33,bld. 2, Leninsky ave., Moscow , Russia , 119071.
authors.forename: Anna
authors.initials: A
authors.lastname: Nikitina
authors.affiliation: b Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences , 33,bld. 2, Leninsky ave., Moscow , Russia , 119071.
authors.forename: Alla
authors.initials: A
authors.lastname: Nozhevnikova
authors.affiliation: a Department of Biotechnology and Bioinformatics , Jaypee University of Information Technology , Waknaghat, Solan, India.
authors.forename: Gunjan
authors.initials: G
authors.lastname: Goel
mesh_terms: D000693:Anaerobiosis; D001105:Archaea / Q000378:metabolism; D001419:Bacteria / Q000378:metabolism; D019149:Bioreactors / Q000382:microbiology*; D045482:Hot Springs / Q000382:microbiology*; D059205:Renewable Energy
keywords: Anaerobic digester; bacterial and archaeal diversity; biogeography; geothermally active region