| diversity of the resident microbiota in a thermophilic municipal biogas plant. | biogas plants continuously convert biological wastes mainly into a mixture of methane, co2 and h2o-a conversion that is carried out by a consortium of bacteria and archaea. especially in the municipal plants dedicated towards waste treatment, the reactor feed may vary considerably, exposing the resident microbiota to a changing variety of substrates. to evaluate how and if such changes influence the microbiology, an established biogas plant (6,600 m3, up to 600 m3 biogas per h) was followed over ... | 2008 | 18820906 |
| ovine ruminal microbes are capable of biotransforming hexahydro-1,3,5-trinitro-1,3,5-triazine (rdx). | bioremediation is of great interest in the detoxification of soil contaminated with residues from explosives such as hexahydro-1,3,5-trinitro-1,3,5-triazine (rdx). although there are numerous forms of in situ and ex situ bioremediation, ruminants would provide the option of an in situ bioreactor that could be transported to the site of contamination. bovine rumen fluid has been previously shown to transform 2,4,6-trinitrotoluene (tnt), a similar compound, in 4 h. in this study, rdx incubated in ... | 2011 | 21340737 |
| anaerosalibacter bizertensis gen. nov., sp. nov., a new halotolerant bacterium isolated from sludge. | a strictly anaerobic, halotolerant and thermotolerant strain designated c5belt was isolated from storage tanks holding wastes generated by the recycling of discarded motor oils located in north tunisia. cells of strain c5belt stained gram-positive, were motile by laterally inserted flagella, straight, and spore-forming. their two major fatty acids were iso-c15:0 (60.1 %) and iso-c15:0 dimethyl acetal (22.0 %). growth was observed at temperatures ranging from 25 to 55 °c (optimum 40 °c) and at ph ... | 2011 | 22140152 |
| Microbial community analysis during continuous fermentation of thermally hydrolysed waste activated sludge. | Acidogenic fermentation of thermally hydrolysed waste activated sludge was carried out at laboratory scale in two reactors operated under different hydraulic retention times (HRT). Process performance was assessed in terms of volatile fatty acid (VFA) composition and yield. The diversity of the microbial population was investigated by constructing a 16S rRNA gene library and subsequent phylogenetic analysis of clones. Fluorescence in situ hybridization (FISH) was used to assess the relative abun ... | 2011 | 22173402 |
| sporanaerobacter acetigenes gen. nov., sp. nov., a novel acetogenic, facultatively sulfur-reducing bacterium. | a strictly anaerobic, moderately thermophilic, sporulating rod, designated strain lup 33t, was isolated from an upflow anaerobic sludge blanket (uasb) reactor in mexico. strain lup 33t possessed a few laterally inserted flagella, had a dna g+c content of 32.2 mol % and grew optimally at ph 7.4 and 40 degrees c. growth was observed at temperatures of up to 50 degrees c and was inhibited in the presence of 5% nacl. strain lup 33t is heterotrophic and utilized some sugars, peptides and various sing ... | 2002 | 12148631 |