摘要
从污染物中分离到一株细菌 ＫＨ４，经鉴定为假单胞菌（Ｐｓｅｕｄｏｍｏｎａｓ ｓｐ．）。该菌可在４０ μｇ／ｍＬ的ＨｇＣｌ２中生长，当ＨｇＣｌ２浓度为３０ μｇ／ｍＬ时，２４ ｈ去汞率为９１．７％。该菌的最适生长温度为３０℃，ｐＨ为７。该菌经质粒检测和转化实验结果表明具有一抗汞质粒，且可通过转化转移。
A bacterial strain KH4 was isolated from pollutant and identified as Pseudomonas sp. This strain was capable of growing on the medium containing 40 40μg/mL HgCl2, and it took 24 hours to re- move mercury about 91.7% when growing on the medium containing 30μg/mL HgCl2. The optimum gruwth temperature and pH was 30℃ and 7, respectively. The result of plasmid extraction showed that there was a mercury-resistant plasmid in the strain and it was able to be transfered by
出处
《黑龙江大学自然科学学报》
CAS
2000年第3期86-88,共3页
Journal of Natural Science of Heilongjiang University
关键词
抗汞菌株
分离鉴定
抗汞质粒
假单胞菌
废物处理
mercury-resistant strain, isolation and identification, growing conditions, mercury- resistant plasmid transformation.
