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Science:利用细菌的耐受性进行环境治理

发布日期:2018-05-22来源:热心肠日报发布人:梦缘徽州

原标题:利用杀菌剂耐受性进行生物除污和解毒的前景展望

① 原核生物可对环境中的高强度化学、物理压力产生快速应答,形成以耐受性为代表的一系列适应性机制;② 暴露于原油、氯代溶剂和抗生素等人造有毒物质有利于细菌产生耐受表型,一些耐受型菌株将有毒污染物作为特有碳源、电子供体或受体使用;③ 微生物对极端pH、金属以及渗透压力的耐受机制具有相似性,有利于人工培养、筛选可用的耐受型菌株;④ 通过促进固有耐受型菌群生长或进行生物强化,可用于去除原油、金属污染和降解多种杀菌剂。

Prospects for harnessing biocide resistance for bioremediation and detoxification

DOI: 10.1126/science.aar3778

Abstract:
Prokaryotes in natural environments respond rapidly to high concentrations of chemicals and physical stresses. Exposure to anthropogenic toxic substances—such as oil, chlorinated solvents, or antibiotics—favors the evolution of resistant phenotypes, some of which can use contaminants as an exclusive carbon source or as electron donors and acceptors. Microorganisms similarly adapt to extreme pH, metal, or osmotic stress. The metabolic plasticity of prokaryotes can thus be harnessed for bioremediation and can be exploited in a variety of ways, ranging from stimulated natural attenuation to bioaugmentation and from wastewater treatment to habitat restoration.

First Authors:
Siavash Atashgahi

Correspondence:
Hauke Smidt

All Authors:
Siavash Atashgahi, Irene Sánchez-Andrea, Hermann J Heipieper, Jan R van der Meer, Alfons J M Stams, Hauke Smidt

5/18/18Review