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Science 24 August 1979:
Vol. 205. no. 4408, pp. 808 - 810
DOI: 10.1126/science.205.4408.808
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Articles

Isolation of a Deep-Sea Barophilic Bacterium and Some of Its Growth Characteristics

A. ARISTIDES YAYANOS 1, ALLAN S. DIETZ 1, and R. VAN BOXTEL 1

1 Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92093

A bacterium, a spirillum, has been isolated from a deep-sea sample and has been found to grow optimally at about 500 bars and 2° to 4°C. These conditions are similar to those prevailing at the 5700-meter depth from which the sample was collected. The organism grows at these pressures and temperatures with a generation time of between 4 and 13 hours; at atmospheric pressure and 2° to 4°C, the generation time is about 3 to 4 days.

Submitted on December 8, 1978
Revised on April 9, 1979


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