Abstract：
:To well understand the community structure and composition of mesophilic microorganisms in anaerobic system fed with PTA wastewater, an up-flow anaerobic fixed bed reactor was continuously run at 33 and 37 °C for 75 and 60 days, respectively. Both fluorescence in situ hybridization analysis and 454-pyrosequencing were applied to investigate the microbial distinction within mesophilic ranges. A preferable performance was achieved at 37 than 33 °C. The taxonomic complexities of two samples were further compared at phylum, class, and genus levels. Notably, microbial diversity differed a lot and the change of populations was observed mainly in the shared OTUs. Genus level analysis showed that when temperature was increased to 37 °C, the abundance of Thauera and Hydrogenophaga (β-Proteobacteria) decreased by 93.75 and 61.47 %, respectively, whereas that of Syntrophorhabdus (δ-Proteobacteria) increased from 4.93 to 16.01 %. Furthermore, the dominant archaeal Methanobacterium at both temperatures indicated the prevailing contribution of hydrogenotrophic methanogens in mesophilic anaerobic system.
journal_name
Curr Microbioljournal_title
Current microbiologyauthors
Ma KL,Li XK,Wang K,Zhou HX,Meng LW,Zhang Jdoi
10.1007/s00284-015-0884-9subject
Has Abstractpub_date
2015-11-01 00:00:00pages
551-8issue
5eissn
0343-8651issn
1432-0991pii
10.1007/s00284-015-0884-9journal_volume
71pub_type
杂志文章abstract：:Streptococcus bovis is commonly present in the rumen, but strains of S. bovis have also occasionally been isolated from human blood or fecal samples. Studies were undertaken with 16s rRNA gene sequences and DNA hybridizations to define the genetic relationships between these two groups of strains. Ruminal strains were...
journal_title：Current microbiology
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