Abstract
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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 69-72 |
| Number of pages | 4 |
| Journal | Comparative Biochemistry and Physiology -- Part A: Physiology |
| Volume | 59 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1978 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physiology
- Molecular Biology
- Biochemistry
Cite this
The role of ice nucleators in the frost tolerance of overwintering queens of the bald faced hornet. / Duman, John G.; Patterson, Jean L.
In: Comparative Biochemistry and Physiology -- Part A: Physiology, Vol. 59, No. 1, 1978, p. 69-72.Research output: Contribution to journal › Article
}
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.
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.
UR - http://www.scopus.com/inward/record.url?scp=0003058570&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0003058570&partnerID=8YFLogxK
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 - A Physiology
JF - Comparative Biochemistry and Physiology - A Physiology
SN - 1095-6433
IS - 1
ER -