首页 | 本学科首页   官方微博 | 高级检索  
   检索      


Utilization of mercapto-2-ethanol as medium reductant for determination of the metabolic response of methanogens towards inorganic sulfur compounds
Authors:L Bhatnagar  M Henriquet  JG Zeikus  J-P Aubert
Institution:Unitéde Physiologie Cellulaire, Département de B.G.M., Institut Pasteur, 28 rue du Dr. Roux, 75724 Paris Cédex 15, France
Abstract:Abstract Mercapto-2-ethanol was examined as a nontoxic and non-metabolizable reducing agent for growth of methanogens. It was used as a medium reductant to prove that Methanobacterium thermoautotrophicum and Methanobacterium strain ivanov grew with either sulfide or elemental sulfur as the sole source of nutrient sulfur but not with sulfate, thiosulfate, sulfite or dithionite. The later inorganic sulfur sources, except sulfate, were potent inhibitors of growth and methanogenesis at 5 mM. The practical utility of mercapto-2-ethanol as a reducing agent and the toxicity of inorganic sulfur sources on metabolic activity of the methanogens are discussed.
Keywords:Methanobacterium thermoautotrophicum strain ΔH              Methanobacterium strain ivanov  practical reducing agent  sulfite  thiosulfate toxicity  elemental sulfur as sulfur source  inorganic sulfur metabolism
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号