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Microbial degradation and detoxification of high molecular weight polycyclic aromatic hydrocarbons by Stenotrophomonas maltophilia strain VUN 10,003

journal contribution
posted on 2023-05-17, 08:21 authored by Juhasz, AL, Stanley, GA, Margaret BritzMargaret Britz
A.L. JUHASZ, G.A. STANLEY AND M.L. BRITZ. 2000. The ability of Stenotrophomonas maltophilia strain VUN 10,003 to degrade and detoxify high molecular weight polycyclic aromatic hydrocarbons (PAHs) was evaluated in a basal liquid medium. Using high cell density inocula of strain VUN 10,003, the concentration of pyrene, fluoranthene, benz[a] anthracene, benzol[a] pyrene, dibenz[a,h]anthracene and coronene decreased by 98, 45, 26, 22, 22 and 55% over periods ranging from 5 to 42 d. When a PAH mixture containing three- to seven-ring compounds was used, degradation of both low and high molecular weight compounds occurred concurrently. Mutagenicity assays (Ames Test) demonstrated a decrease in the mutagenic potential of dichloromethane culture extracts from all cultures containing single PAH over the incubation period, corresponding to the decrease in the concentration of the PAH. These observations indicate that strain VUN 10,003 could be used for the detoxification of PAH-contaminated wastes.

History

Publication title

Letters in Applied Microbiology

Volume

30

Issue

5

Pagination

396-401

ISSN

0266-8254

Department/School

College Office - College of Sciences and Engineering

Publisher

Blackwell Publishing Ltd

Place of publication

9600 Garsington Rd, Oxford, England, Oxon, Ox4 2Dg

Repository Status

  • Restricted

Socio-economic Objectives

Rehabilitation or conservation of terrestrial environments

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