Abstract
Uptake and metabolic turnover of a variety of radioactively labeled substrates by a number of bacterial isolates from several depths in offshore Atlantic waters were studied in laboratory experiments. The variable conditions were hydrostatic pressure (1 to 400 atm), temperature (1.50 to 15.0°C), concentration of substrate (2 to 500 μg/ml), and time of incubation (4 h to 8 weeks). Elevated hydrostatic pressure and low temperature retarded the rate of metabolism (biosynthesis more than respiration) in all isolates tested, but considerably less in those of psychrophilic character.
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Communicated by M.R. Tripp, Newark
Contribution No. 2944 of the Woods Hole Oceanographic Institution.
Supported by the National Foundation Grants GA-33405 and GA-29665.
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Wirsen, C.O., Jannasch, H.W. Activity of marine psychrophilic bacteria at elevated hydrostatic pressures and low temperatures. Mar. Biol. 31, 201–208 (1975). https://doi.org/10.1007/BF00387147
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DOI: https://doi.org/10.1007/BF00387147