关键词: 16S rRNA Anaerobic digestion Metagenome Pyrosequencing

Mesh : Anaerobiosis Animals Archaea / classification metabolism Bacteria / classification metabolism Biota Cluster Analysis DNA, Archaeal / chemistry genetics DNA, Bacterial / chemistry genetics DNA, Ribosomal / chemistry genetics Denaturing Gradient Gel Electrophoresis Hot Temperature Manure / microbiology Molecular Sequence Data Phylogeny RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Swine

来  源:   DOI:10.1016/j.micres.2014.02.003   PDF(Sci-hub)

Abstract:
In this study, the first survey of microbial community in thermophilic anaerobic digester using swine manure as sole feedstock was performed by multiple approaches including denaturing gradient gel electrophoresis (DGGE), clone library and pyrosequencing techniques. The integrated analysis of 21 DGGE bands, 126 clones and 8506 pyrosequencing read sequences revealed that Clostridia from the phylum Firmicutes account for the most dominant Bacteria. In addition, our analysis also identified additional taxa that were missed by the previous researches, including members of the bacterial phyla Synergistetes, Planctomycetes, Armatimonadetes, Chloroflexi and Nitrospira which might also play a role in thermophilic anaerobic digester. Most archaeal 16S rRNA sequences could be assigned to the order Methanobacteriales instead of Methanomicrobiales comparing to previous studies. In addition, this study reported that the member of Methanothermobacter genus was firstly found in thermophilic anaerobic digester.
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