微生物抗重金属毒性研究进展

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 ,通过多途径的联合作用对重金属的毒性进行解毒

Advance on study of the resistance to heavy metal by microorganisms

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.