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SOME PHYSIOLOGICAL DIFFERENCES IN VIBRIO MARINUS GROWN AT ENVIRONMENTAL AND OPTIMAL TEMPERATURES 1
Author(s) -
Haight Janet J.,
Morita Richard Y.
Publication year - 1966
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1966.11.4.0470
Subject(s) - psychrophile , biology , microorganism , bacteria , sugar , vibrio , fermentation , nutrient , vibrionaceae , membrane integrity , growth rate , food science , ecology , membrane , biochemistry , genetics , geometry , mathematics
Cells of an obligately psychrophilic marine bacterium, Vibrio marinus, were grown at environmental (4C) and optimal (15C) temperatures and tested for physiological differences. Sugar fermentation patterns and temperature‐shift growth studies showed no differences, but membrane stability and glucose utilization were affected. The cells grown at 15C were more heat stable and utilized glucose at a faster rate than the cells grown at 4C. These differences were attributed to changes in cellular integrity or membrane integrity, or both. The results indicated that for correlation of in vitro results with in situ conditions, marine microorganisms should be grown at the temperature and under the nutrient conditions of their natural habitat.