the beet moth, scrobipalpa ocellatella is recognized as a widespread agricultural pest. cold hardiness strategy of the beet moth larvae was investigated through monitoring seasonal changes at supercooling points and lower lethal temperatures. furthermore, the role of microhabitat in winter survival was studied. the mean scps of the last instar larvae was not significantly different from novembe...

Water that remains unfrozen at temperatures below the equilibrium bulk freezing temperature, in the presence of ice, is sometimes called unfreezable or bound. This paper analyses the phenomenon in terms of quantitative measurements of the hydration interaction among membranes or macromolecules at freezing temperatures. These results are related to analogous measurements in which osmotic stress ...

The influence of proteins and solutes on hysteresis of freezing and melting of water was measured by infrared (IR) spectroscopy. Of the solutes examined, poly-L-arginine and flounder antifreeze protein produced the largest freezing point depression of water, with little effect on the melting temperature. Poly-L-lysine, poly-L-glutamate, cytochrome c and bovine serum albumin had less effect on t...

MARS: IMPLICATIONS OF REVISED ESTIMATES OF CRUSTAL HEAT FLOW, THERMAL CONDUCTIVITY, AND FREEZING POINT DEPRESSION. S. M. Clifford, E. Heggy, J. Boisson, P. McGovern and M. D. Max. MARSIS Team. Lunar and Planetary Institute, 3600 Bay Area Blvd, Houston, TX 77058, [email protected]; Institut de Physique du Globe de Paris, 4 avenue de Neptune, 94107 St Maur des Fosses Cedex, France, MDS Resear...

‘Many insects accumulate polyhydric alcohols, particularly glycerol, sorbitol, and carbohydrates during fall and winter. In the larval hymenopteran Brachon cephi, Salt (11) found glycerol concentrations as high as 5 m and supercooling points as low as -47°C. The production of these substances is correlated with increased cold hardiness in both freezing tolerant and freezing intolerant species. ...