Open AccessBiodegradaon of phenanthrene in soil microcosms stimulated by an introduced Alcaligenes sp.
Author(s) -
M?ller Jacob,
Ingvorsen Henrik
Publication year - 1993
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1993.tb05818.x
Subject(s) - phenanthrene , alcaligenes , microcosm , chemistry , environmental chemistry , bacteria , biology , pseudomonas , genetics
A phenanthrene degrading strain of Alcaligenes sp. was isolated from oil polluted soil. Addition of Alcaligenes sp. to soil microcosms supplemented with phenanthrene (1 mg/g dry soil) resulted in degradation of the added phenanthrene within 11 days. The phenanthrene concentration declined only 12% in uninoculated soil during 42 days. The total phenanthrene degradation potential of Alcaligenes sp. was 2.3 mg/g dry soil during a period of 22 days. The amount of CO 2 evolved during 22 days corresponded to the conversion of 91% of the degraded phenanthrene to CO 2 . The Alcaligenes sp. were not able to degrade phenanthrene in sterile soil.