Disturbances in the Process of Cell-Division in the Pupal Wing of the Flour-Moth Ephestia kühniella as Result of Heat-Treatment

Abstract

Wings of pupae of Ephestia kühniella, which were exposed to heat at the beginning of the mitosis-period, show a decrease in number of cell divisions and a large increase of anaphases 12-24 hours after exposure. This suggests that few, if any, cells enter mitosis after heat-treatment, while the cells already dividing during the time of exposure finish their process of division at a slower rate. 36 hours after exposure to heat the normal division-process sets in again.