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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 113 (1977), S. 215-220 
    ISSN: 1432-072X
    Keywords: Obligate psychrophile ; Maximum specific growth rate ; Cell yield ; Oxygen uptake ; Substrate affinities ; Vibrio
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The growth characteristics of an obligately psychrophilic Vibrio sp. have been studied in a chemostat with glucose or lactose as the limiting substrate over a temperature range 0–23°C. Vibrio AF-1 has an optimum growth temperature of 15°C and maximum growth temperature which is dependent upon the carbon source. On glucose growth ceases at 20°C whereas on lactose growth continues to 23°C. Growth rate is also a function of the carbon source provided. When grown on glucose, fructose, sucrose, maltose and galactose μmax values of 0.046 h-1 at 15°C were recorded whereas on lactose, mannose, ribose and xylose μmax values of 0.020 h-1 were obtained. Substrate affinities (K s ) for the 9 sugars also fall into 2 divisions as for μmax and are temperature dependent. Those sugars which support a high growth rate have highest K s values at 0°C whereas these which give a low growth rate show maximum affinities at 15°C. Vibrio AF-1 produces the maximum cell yield (0.6 g/g sugar consumed) at temperature 〈8°C irrespective of the carbon source utilised and correlated with maximum rates of sugar uptake and minimum O2 consumption. Maintenance energy determination on glucose grown cells show that at 2° C 2% of the carbon input is used for maintenance whereas at 20°C the requirement increases to 10% of the carbon input.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 210 (1966), S. 1189-1190 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Francois1 had found that the speed of tapping a Morse key at a rate estimated to be 3 taps/sec increased in a total of sixteen experiments on three subjects when their axilla temperature was raised by diathermy by between 0-3 C and 10 C. He found, also, that the frequency of a metronome beat which ...
    Type of Medium: Electronic Resource
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