Changes in ornithine decarboxylase activity in response to temperature stress and stimulation of juvenile hormone in Anastrepha fraterculus (Diptera, Tephritidae)

Effect ofalpha-difluormethylornithine on Anastrepha fraterculus (Diptera, Tephritidae) ovary size

Ovarian sizes (length and width) were measured in young females of Anastrepha fraterculus (Wiedemann) (Diptera, Tephritidae) subjected or not to the inhibitor alpha-difluormethylornithine (alpha-DFMO). The most effective concentration of alpha-DMFO used was 50 mM and the ovarian measurements (length and width) of the treated females were smaller than those of females not treated with alpha-DMFO. These data may suggest some relationship between ornithine decarboxylase (ODC) and sexual maturation in A. fraterculus.