Simultaneous degradation of p-nitrophenol and phenol by a newly isolated Nocardioides sp.

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Title
Simultaneous degradation of p-nitrophenol and phenol by a newly isolated Nocardioides sp.
Author(s)
Young Gyun Cho; Jung Hoon Yoon; Yong Ha Park; Sung Taik Lee
Bibliographic Citation
Journal of General and Applied Microbiology, vol. 44, pp. 303-309
Publication Year
1998
Abstract
A p-nitrophenol (PNP)- and phenol-mineralizing bacterium (strain NSP41) was isolated from an industrial wastewater and identified as a member of the genus Nocardioides. PNP was degraded via a hydroquinone pathway, and phenol was degraded through a catechol pathway in strain NSP41. Both enzyme systems for the degradation of PNP and phenol were induced simultaneously in the presence of both compounds. Although both enzyme systems were induced at the same time, PNP and phenol were degraded by the hydroquinone and catechol pathway, respectively. However, during the simultaneous degradation in the low phenol concentration, after the exhaustion of phenol, some PNP was transformed by the catechol pathway and 4-nitrocatechol was transiently accumulated. Kinetically, the addition of phenol greatly enhanced the apparent PNP degradation rate, which may be due to the increased cell mass by the assimilation of phenol.
Keyword
4-nitrocatecholhydroquinoneNocardioides sp. NSP41p-nitrophenolphenolsimultaneous degradation
ISSN
0022-1260
Publisher
Microbiol Res Foundation
DOI
http://dx.doi.org/10.2323/jgam.44.303
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
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