| RRC ID |
3030
|
| 著者 |
Sekiguchi Y, Imachi H, Susilorukmi A, Muramatsu M, Ohashi A, Harada H, Hanada S, Kamagata Y.
|
| タイトル |
Tepidanaerobacter syntrophicus gen. nov., sp. nov., an anaerobic, moderately thermophilic, syntrophic alcohol- and lactate-degrading bacterium isolated from thermophilic digested sludges.
|
| ジャーナル |
Int J Syst Evol Microbiol
|
| Abstract |
Three anaerobic, moderately thermophilic, syntrophic primary alcohol- and lactate-degrading microbes, designated strains JL(T), JE and OL, were isolated from sludges of thermophilic (55 degrees C) digesters that decomposed either municipal solid wastes or sewage sludge. The strains were strictly anaerobic organisms. All three strains grew at 25-60 degrees C and pH 5.5-8.5 and optimum growth was observed at 45-50 degrees C and pH 6.0-7.0. The three organisms grew chemo-organotrophically on a number of carbohydrates in the presence of yeast extract. In co-culture with the hydrogenotrophic methanogen Methanothermobacter thermautotrophicus, all strains could utilize ethanol, glycerol and lactate syntrophically for growth, although these compounds were not metabolized in pure culture without additional external electron acceptors. All strains could reduce thiosulphate. Quinones were not detected. The DNA G+C contents of strains JL(T), JE and OL were 38.0, 37.3 and 37.7 mol%, respectively. Major cellular fatty acids of the strains were iso-C(15 : 0), C(16 : 0) and unsaturated species of C(15 : 1). Phylogenetic analyses based on 16S rRNA gene sequences revealed that the strains belong to a deeply branched lineage of the phylum Firmicutes; the most closely related species was Thermovenabulum ferriorganovorum (16S rRNA gene sequence similarity of 88 %). The three strains were phylogenetically very closely related to each other (99-100 % 16S rRNA gene sequence similarity) and were physiologically and chemotaxonomically similar. These genetic and phenotypic properties suggest that the strains should be classified as representatives of a novel species and genus; the name Tepidanaerobacter syntrophicus gen. nov., sp. nov. is proposed. The type strain of Tepidanaerobacter syntrophicus is strain JL(T) (=JCM 12098(T)=NBRC 100060(T)=DSM 15584(T)).
|
| 巻・号 |
56(Pt 7)
|
| ページ |
1621-1629
|
| 公開日 |
2006-7-1
|
| DOI |
10.1099/ijs.0.64112-0
|
| PMID |
16825639
|
| MeSH |
Alcohols / metabolism
Anaerobiosis
Bacteria, Anaerobic / classification*
Bacteria, Anaerobic / genetics
Bacteria, Anaerobic / isolation & purification*
Bacteria, Anaerobic / physiology
Bacterial Typing Techniques
Base Composition
DNA, Bacterial / chemistry
DNA, Bacterial / genetics
DNA, Ribosomal / chemistry
DNA, Ribosomal / genetics
Fatty Acids / analysis
Fatty Acids / chemistry
Genes, rRNA
Hot Temperature
Hydrogen-Ion Concentration
Lactic Acid / metabolism
Molecular Sequence Data
Oxidation-Reduction
Phylogeny
Quinones / analysis
RNA, Bacterial / genetics
RNA, Ribosomal, 16S / genetics
Sequence Analysis, DNA
Sequence Homology, Nucleic Acid
Sewage / microbiology*
Temperature
Thiosulfates / metabolism
Waste Disposal, Fluid
|
| IF |
2.415
|
| 引用数 |
50
|
|
WOS 分野
|
MICROBIOLOGY
|
| リソース情報 |
| 病原微生物 |
JCM 12098?
JCM 12099?
JCM 12100? |
