PMID: 4293960Oct 1, 1967Paper

Influence of temperature acclimatization on the temperature-dependence and ouabain-sensitizing of goldfish intestinal adenosine triphosphatase

The Biochemical Journal
M W Smith

Abstract

1. Homogenates of goldfish intestinal mucosa were separated into various fractions by differential centrifugation. Both adenosine-triphosphatase and beta-glycerophosphatase activities were found to be concentrated mainly in a membrane fraction which sedimented after 1200000g-min. 2. This membrane adenosine-triphosphatase system was activated by Na(+)+K(+) and inhibited by ouabain. 3. The ouabain-sensitive adenosine-triphosphatase activity was high and the ouabain-insensitive activity low in membrane fractions prepared from fish acclimatized previously to 8 degrees . The opposite was true for fish acclimatized to 30 degrees . 4. The Arrhenius plots of ouabain-sensitive and ouabain-insensitive adenosine-triphosphatase activities, measured from 5 degrees to 30 degrees , showed discontinuities at incubation temperatures that varied with the previous acclimatization temperature of the fish. 5. It is considered that modification of the membrane adenosine-triphosphatase system in goldfish intestinal mucosa may serve to regulate Na(+) transport at different environmental temperatures.

Citations

Sep 1, 1986·Pflügers Archiv : European journal of physiology·T ZuidemaJ Siegenbeek van Heukelom
Jan 1, 1973·Pflügers Archiv : European journal of physiology·J C Hafkenscheid
Sep 1, 1972·Biochimica Et Biophysica Acta·H K Kimelberg, D Papahadjopoulos
Apr 1, 1977·Biochimica Et Biophysica Acta·P PalatiniJ C Mandersloot
Jan 1, 1985·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·K S CheahD L Ingram
Feb 15, 1973·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·R TirriJ Kohonen
Jun 15, 1971·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·M W Smith, P Kemp
Dec 1, 1968·Comparative Biochemistry and Physiology·P W Hochachka, G N Somero
Jan 1, 1969·Comparative Biochemistry and Physiology·C HebbM W Smith
Aug 1, 1974·Comparative Biochemistry and Physiology. A, Comparative Physiology·L S Fang, J S Willis
May 1, 1980·Journal of the Neurological Sciences·M J DunnV Dubowitz
Nov 1, 1973·Archives of Biochemistry and Biophysics·J S CharnockR To

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