TY - JOUR
T1 - The role of ice nucleators in the frost tolerance of overwintering queens of the bald faced hornet
AU - Duman, John G.
AU - Patterson, Jean L.
N1 - Funding Information:
Acknowledoements--Special thanks to Dr. Quentin Ross for his help in collecting Vespula nests. This work was supported by N.I.H. Biomedical Sciences Support Grant FR/RR-07033-10.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1978
Y1 - 1978
N2 - 1. 1. Overwintering queens of the bald faced hornet, Vespula maculata, are tolerant of ice formation in their body fluids down to temperatures of approximately - 14°C. 2. 2. Contributing to this frost tolerance is a high concentration of the cryoprotectant glycerol in the overwintering queens. An additional factor is the presence in the hemolymph of macromolecular ice nucleating agents which function to induce harmless extracellular ice formation at comparatively high temperatures (-4.6°C), and thereby prevent lethal intracellular ice formation. 3. 3. These ice nucleating agents have molecular weights greater than 3500 and are probably proteinaceous.
AB - 1. 1. Overwintering queens of the bald faced hornet, Vespula maculata, are tolerant of ice formation in their body fluids down to temperatures of approximately - 14°C. 2. 2. Contributing to this frost tolerance is a high concentration of the cryoprotectant glycerol in the overwintering queens. An additional factor is the presence in the hemolymph of macromolecular ice nucleating agents which function to induce harmless extracellular ice formation at comparatively high temperatures (-4.6°C), and thereby prevent lethal intracellular ice formation. 3. 3. These ice nucleating agents have molecular weights greater than 3500 and are probably proteinaceous.
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U2 - 10.1016/0300-9629(78)90308-0
DO - 10.1016/0300-9629(78)90308-0
M3 - Article
AN - SCOPUS:0003058570
VL - 59
SP - 69
EP - 72
JO - Comparative Biochemistry and Physiology -- Part A: Physiology
JF - Comparative Biochemistry and Physiology -- Part A: Physiology
SN - 0300-9629
IS - 1
ER -