抄録
Over 60 species of insects are tolerant to freezing. About half of them have supercooling points above -10℃. The high supercooling points are frequently associated with the presence of endogenous ice-nucleating agents. Start of freezing at high subzero temperatures is believed to protect freeze-tolerant insects against lethal intracellular freezing. In some other insects supercool below -10℃ , their potential freeze tolerance is occasionally realized by the inoculation of ice at temperatures nearly below 0℃. The present paper deals with the initiation mechanisms of freezing in three types of freeze-tolerant insects.
