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两株红平红球菌HL 24-1和HL 24-2对2,4-二硝基苯酚的降解作用

Degradation of 2,4-dinitrophenol by two Rhodococcus erythropolis strains, HL 24-1 and HL 24-2.

作者信息

Lenke H, Pieper D H, Bruhn C, Knackmuss H J

机构信息

Institut für Mikrobiologie, Universität Stuttgart, Germany.

出版信息

Appl Environ Microbiol. 1992 Sep;58(9):2928-32. doi: 10.1128/aem.58.9.2928-2932.1992.

Abstract

Two Rhodococcus erythropolis strains, HL 24-1 and HL 24-2, were isolated from soil and river water by their abilities to utilize 2,4-dinitrophenol (0.5 mM) as the sole source of nitrogen. Although succinate was supplied as a carbon and energy source during selection, both isolates could utilize 2,4-dinitrophenol also as the sole source of carbon. Both strains metabolized 2,4-dinitrophenol under concomitant liberation of stoichiometric amounts of nitrite and 4,6-dinitrohexanoate as a minor dead-end metabolite.

摘要

通过利用2,4-二硝基苯酚(0.5 mM)作为唯一氮源的能力,从土壤和河水中分离出两株红平红球菌菌株HL 24-1和HL 24-2。尽管在筛选过程中提供琥珀酸盐作为碳源和能源,但这两种分离株也可以利用2,4-二硝基苯酚作为唯一碳源。两株菌株在代谢2,4-二硝基苯酚的同时,化学计量地释放出亚硝酸盐和作为次要终产物的4,6-二硝基己酸酯。

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