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Molecular mechanisms of temperature compensation in poikilotherms

Molecular mechanisms of temperature compensation in poikilotherms &h001 R. HAZEL of Physiology Illinois, AND C. LADD and Biochemist~v, PROSSER University Illinois 620 621 621 622 632 632 632 653 661 662 662 666 668 668 sf Life Lincoln, Sciences, Lincoln, Section Nebraska, of Nebraska- and Department of Physiology and Biophysics, University I. II. oJf Champaign-Urbana, III. IV. V. .............................................................. Introduction. .................................... Instantaneous Temperature Compensation. ....................... A. Evidence for instantaneous temperature compensation. ................ B. Mechanisms involved in immediate temperature compensation. C. Summary. ............................................................. ................. Thermal Compensation Associated with a Period of Acclimation. ......................................... A. Evidence for thermal acclimation. B. Mechanisms acclimation. ....................................... c. summary. ............................................................. ................. Compensations to Temperature over Evolutionary Time Periods. A. Evidence for evolutionary temperature compensation. ........................ ...................... B. Mechanisms of evolutionary adaptation to temperature. ............................................................. C. Summary. .............................................................. Conclusions. I. INTRODUCTION This review deals primarily with the physiological adaptations to thermal stress exhibited by poikilotherms, mostly aquatic, which are incapable of effectively regulating their body temperatures by behavioral or circulatory-metabolic means. The body temperature of such poikilotherms corresponds closely to that of the external environment (water temperature), except when the latter is changing rapidly; for example, the mean excess body temperature of Tilapia mossambica was 0.27”C at an ambient temperature of 22OC http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physiological Reviews The American Physiological Society

Molecular mechanisms of temperature compensation in poikilotherms

Physiological Reviews , Volume 54: 620 – Jul 1, 1974

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Publisher
The American Physiological Society
Copyright
Copyright © 1974 the American Physiological Society
ISSN
0031-9333
eISSN
1522-1210
Publisher site
See Article on Publisher Site

Abstract

&h001 R. HAZEL of Physiology Illinois, AND C. LADD and Biochemist~v, PROSSER University Illinois 620 621 621 622 632 632 632 653 661 662 662 666 668 668 sf Life Lincoln, Sciences, Lincoln, Section Nebraska, of Nebraska- and Department of Physiology and Biophysics, University I. II. oJf Champaign-Urbana, III. IV. V. .............................................................. Introduction. .................................... Instantaneous Temperature Compensation. ....................... A. Evidence for instantaneous temperature compensation. ................ B. Mechanisms involved in immediate temperature compensation. C. Summary. ............................................................. ................. Thermal Compensation Associated with a Period of Acclimation. ......................................... A. Evidence for thermal acclimation. B. Mechanisms acclimation. ....................................... c. summary. ............................................................. ................. Compensations to Temperature over Evolutionary Time Periods. A. Evidence for evolutionary temperature compensation. ........................ ...................... B. Mechanisms of evolutionary adaptation to temperature. ............................................................. C. Summary. .............................................................. Conclusions. I. INTRODUCTION This review deals primarily with the physiological adaptations to thermal stress exhibited by poikilotherms, mostly aquatic, which are incapable of effectively regulating their body temperatures by behavioral or circulatory-metabolic means. The body temperature of such poikilotherms corresponds closely to that of the external environment (water temperature), except when the latter is changing rapidly; for example, the mean excess body temperature of Tilapia mossambica was 0.27”C at an ambient temperature of 22OC

Journal

Physiological ReviewsThe American Physiological Society

Published: Jul 1, 1974

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