Antifreeze activity in the cerambycid beetle Rhagium inquisitor

The present study revealed that hibernating freeze-avoiding Rhagium inquisitor beetles have thermal hysteresis antifreeze agents in the intracellular fluid as well as in the intestinal fluid and the haemolymph. The antifreeze activity in all three compartments increased with diminishing size of the...

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Veröffentlicht in:	Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology Biochemical, systemic, and environmental physiology, 1999-02, Vol.169 (1), p.55-60
Hauptverfasser:	Kristiansen, E, Pedersen, S, Ramlov, H, Zachariassen, K.E
Format:	Artikel
Sprache:	eng
Schlagworte:	animal proteins antifreeze proteins body fluids cold tolerance freeze avoidance freezing hemolymph hysteresis ice nucleation intestinal fluid intracellular fluid rhagium inquisitor thermal hysteresis
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Zusammenfassung:	The present study revealed that hibernating freeze-avoiding Rhagium inquisitor beetles have thermal hysteresis antifreeze agents in the intracellular fluid as well as in the intestinal fluid and the haemolymph. The antifreeze activity in all three compartments increased with diminishing size of the seeding ice crystal, suggesting that all three compartments are well protected against spontaneous ice nucleation at low sub-zero temperatures.
ISSN:	0174-1578 1432-136X
DOI:	10.1007/s003600050193