摘要
不少重金属是微生物正常生长的必需元素 ,但是当重金属在菌体内浓度过高时 ,会对菌体产生毒性。微生物可通过细胞的表面富集与细胞膜成分的改变减小毒性的破坏 ,在重金属进一步的诱导下 ,菌体会产生由结构基因与调节基因组成的抗性基因 。
Many heavy metals are the necessary elements for the microorganisms. But when the concentrations of the intercellular heavy metals are too high, the metals become poisonous. The microorganisms can minish the destroy of the toxicity by alter the componential of the membrane and enhance the superficial enrichment . The resistible gene consists of structure gene and adjust gene will be produce, by farther inducement of the heavy metals, to detoxify the toxicity of the heavy metals by excessive approach.
出处
《环境污染治理技术与设备》
CAS
CSCD
北大核心
2002年第4期1-4,共4页
Techniques and Equipment for Environmental Pollution Control
基金
广东省环保局科技开发项目 (2 0 0 0 17)
广东省自然科学基金 (980 897)资助项目
关键词
微生物
重金属抗性
毒性
生物解毒
抗性基因
降解
microorganism
heavy metal resistance
toxicity
biodetoxifcation
resistible gene
