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Antimicrobial Agents and Chemotherapy, December 1999, p. 3014-3017, Vol. 43, No. 12
0066-4804/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Distribution of beta -Lactamases in Actinomycetes

Hiroshi Ogawara,1,* Nao Kawamura,1 Takuji Kudo,2 Ken-Ichiro Suzuki,2 and Takashi Nakase2

Department of Biochemistry, Meiji Pharmaceutical University, Tokyo 204-8588,1 and Japan Collection of Microorganisms, The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198,2 Japan

Received 26 April 1999/Returned for modification 12 August 1999/Accepted 4 October 1999

The distribution of beta -lactamase activities in a collection of actinomycete strains was surveyed. Six of 127 strains were found to produce beta -lactamase. This low frequency was in contrast to the case with Streptomyces species. The producing strains were not related phylogenetically. MICs of benzylpenicillin did not correlate with beta -lactamase production.

* Corresponding author. Department of Biochemistry, Meiji Pharmaceutical University, Noshio-2, Kiyose, Tokyo 204-8588, Japan. Phone and fax: 81-424-95-8474. E-mail: hogawara{at}my-pharm.ac.jp.

Antimicrobial Agents and Chemotherapy, December 1999, p. 3014-3017, Vol. 43, No. 12
0066-4804/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.




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