Maiers D T, Wichlacz P L, Thompson D L, Bruhn D F
Idaho National Engineering Laboratory, Idaho Falls 83415-2203.
Appl Environ Microbiol. 1988 Oct;54(10):2591-3. doi: 10.1128/aem.54.10.2591-2593.1988.
Samples collected from Kesterson Reservoir were screened for bacterial presence and selenate reduction capability. Selenate concentrations of 100 mg/liter were not toxic to indigenous bacteria. Of the 44 samples collected, 20 possessed microbial populations capable of reducing selenate. Reduction was observed in 4% of the water samples, 92% of the sediment samples, and 100% of the soil samples. Microbial reduction of 100 mg of selenate per liter was complete within 1 week of incubation. Up to 75 mg of selenate per liter was reduced beyond selenite to an insoluble red precipitate. Data collected indicate that indigenous bacteria have a significant role in the biogeochemical cycling of selenium.
对从凯斯特森水库采集的样本进行了细菌存在情况和硒酸盐还原能力的筛选。每升100毫克的硒酸盐浓度对本地细菌无毒。在采集的44个样本中，有20个拥有能够还原硒酸盐的微生物种群。在4%的水样、92%的沉积物样本和100%的土壤样本中观察到了还原现象。每升100毫克硒酸盐的微生物还原在培养1周内完成。每升高达75毫克的硒酸盐被还原，超过亚硒酸盐形成不溶性红色沉淀。收集到的数据表明，本地细菌在硒的生物地球化学循环中发挥着重要作用。
