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Ornithine decarboxylase activities of a Shewanella putrefaciens which produces only diamines
Author(s) -
Suzuki Satoru,
Hata Hideyuki,
Takama Kozo
Publication year - 1991
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1991.tb00518.x
Subject(s) - shewanella putrefaciens , ornithine decarboxylase , bacteria , enzyme , shewanella , biochemistry , microbiology and biotechnology , chemistry , biology , genetics
Ornithine decarboxylase (ODC) activity in cell extracts of Shewanella putrefaciens was surveyed. The pH dependency of the ODC activity revealed that the bacterium has two different ODC having optimum pH at 8·25 and 6·50. They were considered to be biosynthetic and biodegradative enzymes, respectively. Their activity ratio varied when the bacterium was cultured at pH 7·0 and 6·0. Both ODC activities were inhibited by α‐difluoromethylornithine but cell growth was not affected.