Endogenous Juvenile Hormone III Titres and In Vitro Rates of Hormone Biosynthesis by Corpora Allata During the Reproductive Cycle of Adult Female Periplaneta Americana
The endogenous titres of juvenile hormone III (JH III), and the in vitro rates of juvenile hormone biosynthesis by isolated corpora allata have been measured at intervals during the reproductive cycle of adult female Periplaneta americana. There was a close correlation between the rates of JH III biosynthesis and endogenous hormone titres. Only JH III was detected in whole body extracts, and hormone titres reached a peak (mean approximately 29 ng/g) at about the mid-point of the ootheca production cycle.
Unable to display preview. Download preview PDF.
- 2.B. Lanzrein, V. Gentinetta, R. Fehr and M. M. Luscher, Correlation between haemolymph juvenile hormone titre, corpus allatum volume, and corpus allatum in vivo and in vitro activity during oocyte maturation in a cockroach (Nauphoeta cinerea), Gen. Comp. Endocr., 36:339–345 (1978).CrossRefGoogle Scholar
- 3.S. S. Tobe, R P. Ruegg, B. B. Stay, F. C. Baker, C. A. Miller and D. A. Schooley, Juvenile hormone titre and regulation in the cockroach Diploptera punctata, Experientia, 41:1028–1034(1985).Google Scholar