Isolation of Cadmium-Resistant Bacteria and Their Resistance Mechanisms : Part2. Cadmium Biosorption by Cd-Resistant and Sensitive Bacteria
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概要
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From the viewpoint of environmental decontamination, the ability of Cd-resistant bacteria to remove soluble cadmium (Cd) from soils heavily contaminated with Cd was examined. The highest Cd biosorption which was achieved by the use of Cd-sensitive bacteria CS-5 was approximately 48.0 mg Cd g^<-1> biomass, which would be sufficient for recycling as Cd resources. The higher the Cd-resistance of strains, the lower the Cd adsorption and uptake, which suggests the existence of a Cd efflux system. Coexisting zinc (Zn) inhibited the Cd biosorption by bacteria remarkably. Strains with a high Cd resistance were less affected by coexisting Zn than those with a low Cd resistance.
- 社団法人日本土壌肥料学会の論文
著者
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Kanazawa Shinjiro
Department Of Agricuitural Chemistry Faculty Of Agriculture The University Of Tokyo
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Mori Keita
Kirin Beer Shiga-Factory
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