Abstract: Two Cd2+adsorption strains of bacteria J2 and J6 were isolated from coastal beach by general technique, and the adsorption of Cd2+was detected by Atomic Absorption Spectroscopy(AAS).The growth and biological characteristics of J2 and J6 were tested to identify the strains.The results showed that they can reduce Cd2+consistency in culture medium,while the amount of Cd2+in bacterial cells was found to be increased compared with the control (P＜0.05)7 days after culture.The J2 and J6 showed gram negative,rod shape,O129 paper sensitive,yellow colony in TCBS,catalase positive,oxidase positive,nitrate reduction positive and requirement of Na+for growth.The J2 and J6 were identified as genus Vibrio.The sequence of 16S rRNA gene of J2 was found to be accorded with Vibrio pacinii with identity of 99%,and J6 was accorded with Vibrio alginnolyticus with identity of 99%.The optimum growth of J2 was observed under the conditions of pH 7,20℃,NaCl of 3%and J6 pH 7.5,30℃,and NaCl of 40%.
2011, Vol. 26 
