NDLI: Microbial community signature of high-solid content methanogenic ecosystems.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Hamelin, Jérôme Abbassi-Guendouz, Amel Trably, Eric Delgenès, Jean-Philippe Escudié, Renaud Dumas, Claire Steyer, Jean Philippe
Description	Country affiliation: France Author Affiliation: Abbassi-Guendouz A ( INRA, UR050, Laboratoire de Biotechnologie de l'Environnement, Narbonne, France.)
Abstract	In this study, changes in bacterial and archaeal communities involved in anaerobic digestion processes operated with high solid contents were investigated. Batch tests were performed within a range of total solids (TS) of 10-35%. Between 10% and 25% TS, high methanogenic activity was observed and no overall specific structure of active bacterial communities was found. At 30% and 35%, methanogenesis was inhibited as a consequence of volatile fatty acids accumulation. Here, a specific bacterial signature was observed with three main dominant bacteria related to Clostridium sp., known for their ability to grow at low pH. Additionally, archaeal community was gradually impacted by TS content. Three archaeal community structures were observed with a gradual shift from Methanobacterium sp. to Methanosarcina sp., according to the TS content. Overall, several species were identified as biomarkers of methanogenesis inhibition, since bacterial and archaeal communities were highly specific at high TS contents.
ISSN	09608524
Volume Number	133
e-ISSN	18732976
Journal	Bioresource Technology
Language	English
Publisher	Elsevier
Publisher Date	2013-04-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Archaea Metabolism Bacteria Ecosystem Methane Anaerobiosis Genetics Batch Cell Culture Techniques Dna Fingerprinting Electrophoresis, Capillary Molecular Sequence Data Phylogeny Polymorphism, Single-stranded Conformational Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource
Content Type	Text
Resource Type	Article
Subject	Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering

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