Eur. J. Entomol. 96 (2): 175-181, 1999

Cold tolerance strategy of the freeze-intolerant chrysomelid, Aulacophora nigripennis (Coleoptera: Chrysomelidae), in warm-temperate regions

WATANABE M., TANAKA K.
N/A

We investigated the physiological adaptations for winter survival in a freeze-intolerant chrysomelid, Aulacophora nigripennis, in warm-temperate regions. The adults showed a decreased supercooling point (SCP), increased chill tolerance and high myo-inositol content during winter. Chill tolerance at 0°C appears to be a more suitable indicator of their cold hardiness than SCP because they die at 0°C without freezing and normally an not exposed to subzero temperatures below their SCP (

Keywords: Chrysomelidae, Aulacophola nigripennis, hibernation diapause, cold hardiness, chill tolerance, freeze-intolerant, supercooling point, cryoprotectant, myo-inositol, juvenile hormone analogue

Accepted: December 21, 1998; Published: June 30, 1999  Show citation

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WATANABE, M., & TANAKA, K. (1999). Cold tolerance strategy of the freeze-intolerant chrysomelid, Aulacophora nigripennis (Coleoptera: Chrysomelidae), in warm-temperate regions. EJE, 96(2), 175-181
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