Precipitation of barite by Myxococcus xanthus:: Possible implications for the biogeochemical cycle of barium
Precipitation of barite by Myxococcus xanthus:: Possible implications for the biogeochemical cycle of barium
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DOI：
10.1128/aem.69.9.5722-5725.2003
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发表时间：
2003-09-01
影响因子：
4.4
通讯作者：
Paytan, A
中科院分区：
文献类型：
--
作者：
González-Muñoz, MT;Fernández-Luque, B;Paytan, A
首次报道了实验室条件下细菌沉淀重晶石（BaSO4）。将黄色粘球菌细菌培养在含有氯化钡稀释溶液的固体培养基中。结晶是由于活细菌的存在和细菌代谢活动而发生的。富含磷的非晶相先于更结晶的重晶石形成。这些实验可能表明细菌参与了与碳循环密切相关的钡生物地球化学循环。
Bacterial precipitation of barite (BaSO4) under laboratory conditions is reported for the first time. The bacterium Myxococcus xanthus was cultivated in a solid medium with a diluted solution of barium chloride. Crystallization occurred as a result of the presence of live bacteria and the bacterial metabolic activity. A phosphorous-rich amorphous phase preceded the more crystalline barite formation. These experiments may indicate the involvement of bacteria in the barium biogeochemical cycle, which is closely related to the carbon cycle.