Open AccessEffect of temperature and htpR on the biosynthesis of superoxide dismutase in Escherichia coli
Author(s) -
Hassan Hosni M.,
Lee FangJen S.
Publication year - 1989
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.1574-6968.1989.tb03033.x
Subject(s) - escherichia coli , regulon , superoxide dismutase , chloramphenicol , superoxide , chemistry , heat shock , malondialdehyde , microbiology and biotechnology , biosynthesis , biochemistry , biology , gene , heat shock protein , enzyme , oxidative stress , antibiotics
Abstract The synthesis of Mn‐ and FeSODs in response to temperature changes was examined in strains of Escherichia coli with different mutations in sod and htpR genes. Growth at or shift to elevated temperatures induced FeSOD but not MnSOD. The induction of FeSOD by heat was inhibited by chloramphenicol and was independent of the heat shock ( htpR ‐controlled) regulon. FeSOD was more stable at 42°C than was MnSOD.