从黄石国家公园的酸性硫酸盐氯化物地热泉中分离出的亚砷酸盐氧化氢杆菌菌株。
Arsenite-oxidizing Hydrogenobaculum strain isolated from an acid-sulfate-chloride geothermal spring in Yellowstone National Park.
作者信息
Donahoe-Christiansen Jessica, D'Imperio Seth, Jackson Colin R, Inskeep William P, McDermott Timothy R
机构信息
Thermal Biology Institute and Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, Montana 59717, USA.
出版信息
Appl Environ Microbiol. 2004 Mar;70(3):1865-8. doi: 10.1128/AEM.70.3.1865-1868.2004.
Abstract
An arsenite-oxidizing Hydrogenobaculum strain was isolated from a geothermal spring in Yellowstone National Park, Wyo., that was previously shown to contain microbial populations engaged in arsenite oxidation. The isolate was sensitive to both arsenite and arsenate and behaved as an obligate chemolithoautotroph that used H(2) as its sole energy source and had an optimum temperature of 55 to 60 degrees C and an optimum pH of 3.0. The arsenite oxidation in this organism displayed saturation kinetics and was strongly inhibited by H(2)S.
摘要
从怀俄明州黄石国家公园的一个地热泉中分离出了一株氧化亚砷的氢杆菌菌株，该地热泉先前已被证明含有参与亚砷酸盐氧化的微生物群落。该分离株对亚砷酸盐和砷酸盐均敏感，表现为专性化能无机自养菌，以H₂作为唯一能源，最适温度为55至60摄氏度，最适pH为3.0。该生物体中的亚砷酸盐氧化呈现饱和动力学，并且受到H₂S的强烈抑制。
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