原核生物的硫氧化作用。
Prokaryotic sulfur oxidation.
作者信息
Friedrich Cornelius G, Bardischewsky Frank, Rother Dagmar, Quentmeier Armin, Fischer Jörg
机构信息
Department of Biochemical and Chemical Engineering, University of Dortmund, D-44221 Dortmund, Germany.
出版信息
Curr Opin Microbiol. 2005 Jun;8(3):253-9. doi: 10.1016/j.mib.2005.04.005.
Recent biochemical and genomic data differentiate the sulfur oxidation pathway of Archaea from those of Bacteria. From these data it is evident that members of the Alphaproteobacteria harbor the complete sulfur-oxidizing Sox enzyme system, whereas members of the beta and gamma subclass and the Chlorobiaceae contain sox gene clusters that lack the genes encoding sulfur dehydrogenase. This indicates a different pathway for oxidation of sulfur to sulfate. Acidophilic bacteria oxidize sulfur by a system different from the Sox enzyme system, as do chemotrophic endosymbiotic bacteria.
最近的生化和基因组数据将古菌的硫氧化途径与细菌的硫氧化途径区分开来。从这些数据可以明显看出，α-变形菌纲的成员拥有完整的硫氧化Sox酶系统，而β和γ亚类以及绿菌科的成员含有缺少编码硫脱氢酶基因的sox基因簇。这表明硫氧化成硫酸盐的途径不同。嗜酸细菌通过一种不同于Sox酶系统的系统氧化硫，化学营养内共生细菌也是如此。
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