Fat body involvement in vitellogenin fate in the green frog, Rana esculenta.
1. Since, in Rana esculenta, fat bodies contain vitellogenin, the present study was performed in order to determine whether or not fat bodies are involved in the fate of vitellogenin. 2. The experiment of November shows that fat body excision provokes plasma vitellogenin increase even in animals treated with estradion-17 beta + pituitary crude homogenate (as compared with relative control). The same picture has been shown in the April experiment. 3. The result on protein-bound phosphate in ovaries from the April experiment has shown that fat body extirpation causes a decrease of protein-bound phosphate in the ovary. 4. This results indicates that fat bodies play an important role in sequestrating circulating vitellogenin by the ovary.
Varriale
B
B
Instituto di Biologia, I Facoltá di Medicina e Chirurgia, Universitá di Napoli, Italy.
Di Matteo
L
L
Minucci
S
S
Pierantoni
R
R
Chieffi
G
G
D000818:Animals; D005216:Fat Body / Q000502:physiology*; D005260:Female; D010053:Ovary / Q000378:metabolism; D010750:Phosphoproteins / Q000378:metabolism; D011893:Rana esculenta / Q000502:physiology*; D014819:Vitellogenins / Q000097:blood / Q000378:metabolism*
D010750:Phosphoproteins; D014819:Vitellogenins