CALCIUM-CARBONATE PRECIPITATION BY 2 GROUPS OF MODERATELY HALOPHILIC MICROORGANISMS AT DIFFERENT TEMPERATURES AND SALT CONCENTRATIONS
CALCIUM-CARBONATE PRECIPITATION BY 2 GROUPS OF MODERATELY HALOPHILIC MICROORGANISMS AT DIFFERENT TEMPERATURES AND SALT CONCENTRATIONS
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DOI：
10.1007/bf01589456
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发表时间：
1988-01-01
影响因子：
2.6
通讯作者：
RAMOSCORMENZANA, A
中科院分区：
文献类型：
--
作者：
FERRER, MR;QUEVEDOSARMIENTO, J;RAMOSCORMENZANA, A
已经研究了目前属于黄杆菌属和不动杆菌属的 48 种中度嗜盐微生物菌株的碳酸盐晶体形成。菌株在不同的盐浓度（2.5%、7.5%和20%，重量/体积，总盐）和温度（22℃和32℃）下生长。所有测试的菌株都能够将碳酸钙沉淀为方解石，但只有不动杆菌菌株形成文石。高温和低离子强度介质有利于晶体形成。讨论了物种特异性对中度嗜盐微生物沉淀晶体类型的影响及其在自然界主动沉淀中的可能作用。
Carbonate crystal formation by 48 strains of moderately halophilic microorganisms currently assigned to the genus Flavobacterium and Acinetobacter has been investigated. Strains were grown at different salt concentrations (2.5%, 7.5% and 20%, wt/vol, total salts) and temperatures (22.degree. C and 32.degree. C). All the strains tested were capable of precipitating calcium carbonate as calcite, but only Acinetobacter strains formed aragonite. High temperature and low ionic strength of medium favored crystal formation. The influence of species specificity on the type of crystal precipitated by moderately halophilic microorganisms and their possible role in active precipitation in nature are discussed.