Open AccessMineralization of monofluorobenzoate by a diculture under sulfate‐reducing conditions
Author(s) -
Drzyzga Oliver,
Jannsen Sigrid,
Blotevogel KarlHeinz
Publication year - 1994
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.1574-6968.1994.tb06703.x
Subject(s) - sulfate , sulfate reducing bacteria , mineralization (soil science) , desulfovibrio , chemistry , mesophile , bacteria , catechol , pentachlorophenol , methanogenesis , phenol , strain (injury) , environmental chemistry , biochemistry , food science , biology , organic chemistry , anatomy , nitrogen , genetics , methane
A mesophilic, dehalogenating, sulfate‐reducing diculture was isolated from an anaerobic lake sediment. One strain of the diculture is proposed to be an endospore‐forming Desulfotomaculum species, the second strain was a vibrioid, motile and non‐sporeforming species which is tentatively assigned to the genus Desulfovibrio . The diculture was able to mineralize 4‐ and 2‐fluorobenzoate both isomers being incompletely oxidized with the release of acetate, which was subsequently used by both sulfate‐reducing strains. Other electron donors used for growth included benzoate, 3‐ and 4‐hydroxybenzoate, protocatechuate, catechol, phenol, 2,5‐dimethoxyphenol, fatty acids up to C 8 , malate and pyruvate. The culture obtained from a freshwater habitat grew optimally at NaCl concentrations of 0.3–0.5 g 1 −1 , 33–37°C, and pH 7.4. Our experiments showed that certain fluorinated aromatic hydrocarbons could serve as sole sources of carbon and energy for sulfate‐reducing bacteria.