Bacteroides luti sp. nov., an anaerobic, cellulolytic and xylanolytic bacterium isolated from methanogenic sludge.
TLDR
The genetic and phenotypic properties suggest that strain UasXn-3T represents a novel species, and the name Bacteroides luti sp.Abstract:
A mesophilic, anaerobic, cellulolytic and xylanolytic strain, UasXn-3T, was isolated from anaerobic granular sludge in a mesophilic upflow anaerobic sludge blanket reactor, which was used to treat municipal sewage. The cells were Gram-stain-negative, non-motile, and non-spore-forming rods. The optimal temperature for growth was 37-40 °C and the optimal pH for growth was pH 6.5-7.0. Strain UasXn-3T could grow on several polysaccharides and sugars, including cellulose, cellobiose, xylan, xylose, glucose, fructose, arabinose, mannose, raffinose, trehalose and starch. The DNA G+C content was 44.4 mol%. On the basis of comparative 16S rRNA gene sequence analysis, strain UasXn-3T was identified as a member of the genus Bacteroides and most closely related to Bacteroides oleiciplenus, B. intestinalis, B. cellulosilyticus and B. graminisolvens (sequence similarities of 91.3-91.6%). Since the genetic and phenotypic properties suggest that strain UasXn-3T represents a novel species, we propose the name Bacteroides luti sp. nov. The type strain is UasXn-3T (=JCM 19020T=DSM 26991T).read more
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Microbial characteristics in anaerobic digestion process of food waste for methane production–A review
TL;DR: A critical summary of microbial characteristics was provided to obtain connects of microbial community structure with operational conditions at various states of AD, such as mesophilic and thermophilic, wet and dry, success and failure, pretreated or not, lab-scale and full-scale.
Journal ArticleDOI
Characterization of microbial community structure during continuous anaerobic digestion of straw and cow manure.
TL;DR: Responses of bacterial and archaeal communities to the addition of straw during anaerobic digestion of manure at different temperatures were investigated using five laboratory‐scale semi‐continuous stirred tank reactors, revealing that including straw as co‐substrate decreased the species richness for bacteria, whereas increasing the operating temperature decreased thespecies richness for both archaea and bacteria, and also the evenness of the bacteria.
Journal ArticleDOI
Optimization and microbial community analysis of anaerobic co-digestion of food waste and sewage sludge based on microwave pretreatment
Junya Zhang,Chen Lv,Juan Tong,Jianwei Liu,Jibao Liu,Dawei Yu,Yawei Wang,Meixue Chen,Yuansong Wei +8 more
TL;DR: Results showed that the optimized ratio was 3:2 for co-digestion of FW and SS based on MW, and the methane production was 316.24 and 338.44mLCH4/gVSadded for MW-FW and MW-SS, respectively.
Journal ArticleDOI
Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes .
Marina García-López,Jan P. Meier-Kolthoff,Brian J. Tindall,Sabine Gronow,Tanja Woyke,Nikos C. Kyrpides,Richard L. Hahnke,Markus Göker +7 more
TL;DR: While a significant degree of phylogenetic conservation was detected in all phenotypic characters investigated, the overall fit to the tree varied considerably, which is one of the probable causes of misclassifications in the past, and underline the pitfalls inherent in phylogenies based upon single gene sequences.
Journal ArticleDOI
The microbial community structure in industrial biogas plants influences the degradation rate of straw and cellulose in batch tests
TL;DR: The degradation rate of cellulose and straw varied in the batch tests dependent on the origin of the inoculum and was negatively correlated with the ammonia level, while the cellulose-degrading community showed a dominance of bacteria belonging the Firmicutes and Bacteriodetes.
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TL;DR: The upflow anaerobic sludge blanket (UASB) process is reported to be a sustainable technology for domestic wastewaters treatment in developing countries and for small communities However, the inability of UASB process to meet the desired disposal standards has given enough impetus for subsequent post treatment as mentioned in this paper.
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