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Applied and Environmental Microbiology, February 1999, p. 846-848, Vol. 65, No. 2
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Isolation of Deinococcus Species from Commercial Oyster Extract

W. F. Chan and D. K. O'Toole*

Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong, People's Republic of China

Received 6 July 1998/Accepted 20 November 1998

Deinococci with radiation resistance greater than that of Deinococcus radiophilus (ATCC 27603) were isolated from three commercial oyster extracts stored at 4, 20, and 30°C. During storage the number of other bacteria declined and deinococci became the predominant group in the microflora, particularly at 20°C, although at 30°C the number of deinococci as well rapidly declined. The results suggest that the natural habitat of deinococci is an aerobic environment containing a slightly elevated saline content, soluble protein, and low sugar levels.

* Corresponding author. Mailing address: Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Ave., Kowloon, Hong Kong, People's Republic of China. Phone: 852-2788-7747. Fax: 852-2788-7406. E-mail: bhsnuff{at}cityu.edu.hk.

Applied and Environmental Microbiology, February 1999, p. 846-848, Vol. 65, No. 2
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.




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