Abstract：Abstract: Two Cd-resistant bacterial strains were isolated from heavy metal contaminated soil. The morphology of bacterial cells was observed as rhabdoid in shape, 0.5~0.8 μm in width and 1.0~2.0 μm in length, yellow and white in color. The two bacterial strains were characterized as Enterobacter sp. and Serratia sp. The minimum inhibitory concentration (MIC) of Cd2+, the optimum growth conditions and antibiotic resistance features of the two strains were tested and optimized. Interactions between the two strains and CdS-TGA nanoparticles were further investigated. It was found that bacterial growth was strongly inhibited by nanoparticles at a concentration up to 150 μg/mL. Peroxidase and superoxide dismutase activities of bacteria were much more inhibited by CdS-TGA nanoparticles than Cd2+. In addition, damage of bacterial cell morphology caused by CdS-TGA nanoparticles was also observed.
引用本文:
郑 浩, 张建坤, 郑连爽, 孙恩杰, 苏宝连, 谢 浩. 两株土壤耐镉细菌的筛选分离及与CdS-TGA纳米颗粒相互作用的研究[J]. 生命科学研究, 2015, 19(6): 505-511.
ZHENG Hao, ZHANG Jian-Kun, ZHENG Lian-Shuang, SUN 恩Jie, SU Bao-Lian, XIE Hao. Isolation of Two Cd-resistant Bacterial Strains from Heavy Metal Contaminated Soil and Their Interactions with CdS-TGA. Life Science Research, 2015, 19(6): 505-511.
2015, Vol. 19 
