Interaction between diet and hormones on vitellogenin levels in the housefly,Musca domestica

Publisher Website
Google Scholar
Abstract
Vitellogenin levels in houseflies maintained on sucrose did not increase after pulse-feeding protein if the corpus allatum-cardiacum (CA-CC) complex was removed or if the flies were allatectomized within 6 h of emergence. Vitellogenin levels did increase, however, after pulse-feeding protein to ovariectomized flies or to insects that were allatectomized at 48 h, but the levels were significantly lower than in the unoperated protein-fed controls. Ecdysteroid levels did not increase after pulse-feeding protein to sucrose-fed flies if the CA-CC complex or ovaries had been removed or if the flies were allatectomized at 6 h. Flies that had the CA-CC complex and ovaries removed (−OV) did not have any detectable vitellogenin on either the sucrose or protein diets. Treatment of these −CA-CC −OV sucrose-fed flies with either methoprene (JHA) or 20-hydroxyecdysone (20-HE) did not result in vitellogenin production, but treating them with both hormones did. Flies on the protein diet produced vitellogenin after treatment with JHA or 20-HE either alone or together. Diet appears to be modulating the action of OH and 20-HE on the induction of vitellogenin production in Musca.

This publication has 25 references indexed in Scilit: