Open AccessChromate reductase activity of Enterobacter aerogenes is induced by nitrite
Author(s) -
Clark David P.
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.tb07173.x
Subject(s) - enterobacter aerogenes , chromate conversion coating , nitrite reductase , nitrate reductase , nitrite , chemistry , reductase , biochemistry , nitrate , enterobacter , enzyme , microbiology and biotechnology , escherichia coli , biology , chromium , organic chemistry , gene
A chromate resistant mutant of Enterobacter aerogenes manifested its chromate resistance only under aerobic conditions. Both parent and mutant showed substantial levels of anaerobic chromate reductase activity when grown on glycerol plus fumarate. The chromate reductase was further induced by growth in the presence of nitrite but was repressed by nitrate. The chromate reductase activity paralleled that of the formate‐linked nitrite reductase. There was no significant difference in chromate reductase levels between the parent and its chromate resistant mutant, indicating that this enzyme activity is not, in fact responsible for chromate resistance as was suggested previously by others.