| Abstract: | Heat shock induced by an increase in temperature from 30°C to 47°C led to changes in protein synthesis in wing pads of the fifth larval instar of Locusta migratoria. Synthesis of heat shock proteins in the molecular weight range of 85,000, 70,000 and 18,000–22,000 was first detected at a threshold temperature of 45°C and was found to be highest at 47°C. A marked decline in the synthesis of many other proteins was also evident at 47°C. Recovery of general protein synthesis was observed when wing pads were shifted back to 30°C after a 2-h heat shock at 47°C. Heat shock protein patterns in Locusta and Drosophila were compared. |
