[pH值和温度对氧化亚铁硫杆菌氧化Fe2+动力学的影响]
[Effect of pH and temperature on the kinetics of Fe2+ oxidation by Thiobacillus ferrooxidans].
作者信息
Moshniakova S A, Karavaiko G I
出版信息
Mikrobiologiia. 1979 Jan-Feb;48(1):49-52.
PMID:34080
Abstract
A correlation has been established between the action of pH and temperature on the activity of Fe2+ oxidation by Thiobacillus ferrooxidans. The rate of Fe2+ oxidation by the bacterium is inhibited at 12 degrees C mainly due to an increase in the pH. Autooxidation of the medium upon hydrolysis of Fe3+ is inhibited at low temperatures. Apparently, the enzymes of Thiobacillus ferrooxidans involved in Fe2+ oxidation are only slightly susceptible to a decrease of temperature to 10--12 degrees C.
摘要
已确定pH值和温度对氧化亚铁硫杆菌氧化Fe2+活性的作用之间存在相关性。该细菌氧化Fe2+的速率在12℃时受到抑制，主要原因是pH值升高。Fe3+水解时培养基的自动氧化在低温下受到抑制。显然，参与Fe2+氧化的氧化亚铁硫杆菌的酶对温度降至10 - 12℃的变化仅略有敏感。
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