McCready R G, Grinenko V A, Krouse H R
Can J Microbiol. 1980 Oct;26(10):1173-7. doi: 10.1139/m80-196.
Proteus vulgaris metabolized thiosulfate to H2S. The amount evolved and its sulfur isotope composition identified it solely with sulfane sulfur. In contrast, Salmonella heidelberg sequentially reduced the sulfane sulfur of S2O3(-2) with slight enrichment of the evolved sulfide in 32S and then reduced the sulfonate sulfur of S2O3(-2) with large isotopic selectivities and an inverse isotopic fractionation pattern. The inverse isotope fractionation pattern for the H2S derived from the sulfonate sulfur was almost identical to that observed during the reduction of high concentrations of sulfite by S. heidelberg.
普通变形杆菌将硫代硫酸盐代谢为硫化氢。所释放的量及其硫同位素组成表明其仅与硫烷硫有关。相比之下，海德堡沙门氏菌先依次还原S2O3(-2)中的硫烷硫，所释放的硫化物中32S略有富集，然后以较大的同位素选择性和相反的同位素分馏模式还原S2O3(-2)中的磺酸盐硫。源自磺酸盐硫的硫化氢的反向同位素分馏模式与海德堡沙门氏菌还原高浓度亚硫酸盐时观察到的模式几乎相同。
