Cryobiology of the freeze-tolerant gall fly Eurosta solidaginis:overwintering energetics and heat shock proteins

Climate Research

Dommel RA¹  Lee RE Jr¹  Joplin KH¹  Denlinger DL¹ 

关键词: Cold-hardiness;    Insect;    Low temperature adaptation .Respiration;    Stress proteins;   

DOI  :  10.3354/cr005061

来源: Inter-Research Science Publishing

【 摘 要 】

ABSTRACT: The goldenrod gall fly Eurosta solidaginis (Diptera:Tephritidae) ranges from the southern U.S. northward into Canada. Thelarva overwinters within a ball gall on the stem of goldenrodSolidago spp. The galls often extend above the snowpack, exposing thelarva to a wide range of environmental extremes in winter. Thisspecies has received extensive attention as a freeze-tolerant insectmodel. A seasonal study of the overwintering bioenergetics of anOhio, USA, population revealed marked decreases in body weight, lipidand total caloric content in October and November when environmentaltemperatures were the highest. Overwintering larvae produce heatshock proteins in response to high-temperature exposure. However,unlike other insects E. solidaginis does not appear to synthesizeheat shock proteins in response to low-temperature exposure.

【 授权许可】

Unknown