Spatial Conditioning in the Flesh Fly, Sarcophaga crassipal pis: Disruption of Learning by Cold Shock and Protection by Rapid Cold Hardening

2005 ◽  
Vol 8 (4) ◽  
pp. 345-351 ◽  
Author(s):  
Young-Soo Kim ◽  
D.L. Denlinger ◽  
B. Smith
Keyword(s):  
Cold Shock ◽  
Cold Hardening ◽  
Flesh Fly ◽  
Rapid Cold Hardening

scholarly journals Cold-Shock Injury and Rapid Cold Hardening in the Flesh Fly Sarcophaga crassipalpis

1987 ◽  
Vol 60 (3) ◽  
pp. 297-304 ◽  
Author(s):  
Cheng-Ping Chen ◽  
David L. Denlinger ◽  
Richard E. Lee
Keyword(s):  
Cold Shock ◽  
Cold Hardening ◽  
Sarcophaga Crassipalpis ◽  
Flesh Fly ◽  
Rapid Cold Hardening

Metabolomic profiling of rapid cold hardening and cold shock in Drosophila melanogaster

2007 ◽  
Vol 53 (12) ◽  
pp. 1218-1232 ◽  
Author(s):  
Johannes Overgaard ◽  
Anders Malmendal ◽  
Jesper G. Sørensen ◽  
Jacob G. Bundy ◽  
Volker Loeschcke ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Cold Shock ◽  
Cold Hardening ◽  
Metabolomic Profiling ◽  
Rapid Cold Hardening

A rapid cold-hardening response protecting against cold shock injury in Drosophila melanogaster

1990 ◽  
Vol 148 (1) ◽  
pp. 245-254 ◽  
Author(s):  
M. C. Czajka ◽  
R. E. Lee
Keyword(s):  
Drosophila Melanogaster ◽  
Cold Hardiness ◽  
Cold Shock ◽  
Environmental Temperature ◽  
Cold Hardening ◽  
Supercooling Point ◽  
Old Adults ◽  
Spontaneous Nucleation ◽  
Rapid Cold Hardening ◽  
Insect Cold Hardiness

In studies of insect cold-hardiness, the supercooling point (SCP) is defined as the temperature at which spontaneous nucleation of body fluids occurs. Despite having an SCP of −20 degrees C, adults of Drosophila melanogaster did not survive exposure to −5 degrees C, which suggests that cold shock causes lethal injury that is not associated with freezing. If, however, flies were chilled at 5 degrees C, for as little as 30 min, approximately 50% of the flies survived exposure to −5 degrees C for 2h. This capacity to cold-harden rapidly was greatest in 3- and 5-day-old adults. The rapid cold-hardening response was also observed in larvae and pupae: no larvae survived 2 h of exposure to −5 degrees C, whereas 63% pupariated if chilled at 5 degrees C before subzero exposure. Similarly, although exposure of pupae to −8 degrees C was lethal, if pre-chilled at 5 degrees C 22% eclosed. This extremely rapid cold-hardening response may function to allow insects to enhance cold-tolerance in response to diurnal or unexpected seasonal decreases in environmental temperature.

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