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不同钾浓度培养条件对栖热茵TibetanG6菌株吸附铯的影响 被引量:1

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摘要 研究了不同钾离子浓度培养体系下栖热菌TibetanG6菌株(Thermus sp.TibetanG6)对铯的吸附规律以及pH和钠离子对吸附的影响.结果表明,不同钾离子浓度培养条件在TibetanG6菌株对铯的吸附过程中扮演了重要的角色,由培养基中不加钾而诱导的钾缺失细胞对铯的吸附量(24 h)明显高于正常培养基中加过量钾产生的钾过量体系中的吸附量.在不同的钾离子细胞中,pH和钠离子对菌体吸附铯产生了不同的影响.菌体的红外光谱分析也表明:菌株TibetanG6细胞对铯的吸附是一个动态平衡过程.最后对pH和钠离子对铯吸附的作用机制进行了讨论.
出处 《中国科学(C辑)》 CSCD 北大核心 2005年第6期513-518,共6页 Science in China(Series C)
基金 973项目(批准号:2002CG412610) 国家地调局地质调查项目(批准号:200313000065)资助
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