FAILURE TO CONFIRM INCREASED LONGEVITY IN DROSOPHILA-MELANOGASTER SUBMITTED TO A FOOD RESTRICTION PROCEDURE

Several studies have shown that, contrary to what occurs in rodents an d in some invertebrates species, food restriction has no positive effe ct on longevity in Drosophila melanogaster. However, Chippindale et al . (1993) reported that flies subjected to food restriction, by modulat ing the yeast level, could live longer. In the present study we used t he same yeast levels as Chippindale et al. in an attempt to confirm th ese results. No positive effect of food restriction on longevity could be observed in either sex in mated and virgin flies.