Denger K, Stackebrandt E, Cook A M
Fakultät für Biologie der Universität, Konstanz, Germany.
Int J Syst Bacteriol. 1999 Oct;49 Pt 4:1599-603. doi: 10.1099/00207713-49-4-1599.
Strain GKNTAUT has been described as a bacterium able to ferment the organosulfonate taurine (2-aminoethanesulfonate) quantitatively to acetate, ammonia and thiosulfate, an unusual metabolic product. This novel fermentation has now also been observed in four independent isolates from two continents. All five organisms were strictly anaerobic, Gram-positive, motile, spore-forming bacteria. Enrichments with isethionate (2-hydroxyethanesulfonate) and cysteate (2-amino-3-sulfopropionate), in contrast, yielded bacteria that disproportionated the sulfonate to sulfate and sulfide. The phylogenetic location of the taurine fermenters was analysed on the basis of 16S rDNA sequences. Strain GKNTAUT (= DSM 11270T = ATCC 700533T) is described as the type strain of a new genus and species, for which the name Desulfonispora thiosulfatigenes gen. nov., sp. nov. is proposed.
菌株GKNTAUT被描述为一种能够将有机磺酸盐牛磺酸（2-氨基乙磺酸盐）定量发酵为乙酸盐、氨和硫代硫酸盐（一种不寻常的代谢产物）的细菌。现在在来自两大洲的四个独立分离株中也观察到了这种新的发酵过程。所有五种微生物都是严格厌氧、革兰氏阳性、能运动、产芽孢的细菌。相比之下，用羟乙磺酸盐（2-羟基乙磺酸盐）和磺基丙氨酸（2-氨基-3-磺基丙酸）进行富集培养，得到的细菌能将磺酸盐歧化为硫酸盐和硫化物。基于16S rDNA序列分析了牛磺酸发酵菌的系统发育位置。菌株GKNTAUT（=DSM 11270T=ATCC 700533T）被描述为一个新属和新种的模式菌株，为此提出了新属名硫代硫酸盐脱硫孢菌属（Desulfonispora），新种名硫代硫酸盐脱硫孢菌（Desulfonispora thiosulfatigenes）。
