Open AccessA denitrifying strain of Rhodobacter capsulatus
Author(s) -
Richardson David J.,
Bell Louise C.,
Moir James W.B.,
Ferguson Stuart J.
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.tb07053.x
Subject(s) - rhodobacter , nitrite reductase , rhodospirillales , rhodospirillaceae , denitrifying bacteria , denitrification , strain (injury) , biochemistry , chemistry , nitrite , nitrate reductase , nitrate , microbiology and biotechnology , biology , enzyme , organic chemistry , anatomy , mutant , nitrogen , gene
Repeated subculturing of Rhodobacter capsulatus strain BK5 under phototrophic conditions on a medium containing butyrate and nitrate led to the appearance of cultures that, unlike the original, produced gas. Isolation of a pure culture of the gas‐forming organism revealed that it was a derivative of R. capsulatus BK5 that by virtue of expressing a nitrite reductase can catalyse the complete sequence of the denitrification reactions. The nitrite reductase is of the type that contains copper rather than haem.