Substrate utilisation by Sulfobacillus thermosulfidooxidans in mixed ferrous ion and tetrathionate growth medium

被引：0
|
作者：
Shiers, D. W. [1 ]
Ralph, D. E. [2 ]
Watling, H. R. [1 ]
机构：
[1] CSIRO Minerals, AJ Parker Cooperat Res Ctr Integrated Hydromet So, POB 7229, Karawara, WA 6152, Australia
[2] Murdoch Univ, Sch Chem & Mat Sci, Murdoch, WA 6150, Australia
来源：
BIOHYDROMETALLURGY: A MEETING POINT BETWEEN MICROBIAL ECOLOGY, METAL RECOVERY PROCESSES AND ENVIRONMENTAL REMEDIATION | 2009年 / 71-73卷
关键词：
Sulfobacillus thermosulfidooxidans; ferrous ion oxidation; tetrathionate oxidation; OXIDATION; BACTERIA; IRON;
D O I：
10.4028/www.scientific.net/AMR.71-73.251
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
Sulfobacillus thermosulfidooxidans cultures adapted to ferrous or tetrathionate ions were inoculated into media containing both substrates. In batch culture, cells showed a preference for oxidising ferrous ion followed by tetrathionate. Tetrathionate oxidation was slower in ferrous-adapted cells. Biomass formation exhibited an exponential growth phase during ferrous ion oxidation followed by an exponential growth phase during tetrathionate oxidation. Sequential utilisation of ferrous ion followed by tetrathionate ion was observed when equimolar amounts of substrates or electron-equivalent amounts were provided.
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页码：251 / +
页数：2
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