Abstract
The gonadotropin from the optic glands of Octopus accelerates several maturational stages of both male and female gametes. Yolk protein synthesis by follicle cells during secondary vitellogenesis is dependent on the gonadotropin, and is easily quantified by labeling with [14C]leucine. Synthesis rates in vivo decline exponentially (t 1 2 of about 1 day) following removal of optic glands. When tested in vitro in Medium 199, eggs from animals with optic glands removed show a related decline in synthesis. Addition of aqueous extracts of optic glands to the in vitro system partially restores the synthesis rate. This system is a rapid and sensitive test for the optic gland gonadotropin.
| Original language | English |
|---|---|
| Pages (from-to) | 129-135 |
| Number of pages | 7 |
| Journal | General and Comparative Endocrinology |
| Volume | 27 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Oct 1975 |
Bibliographical note
Funding Information:We should like to thank the staff of the Stazione Zoologica di Napoli for their cooperation in allowing US to carry out this work, and The Royal Society and British Science Research Council for providing “table” facilities and financial support. R. K. 0. held a Fellowship from the Canadian Medical Research Council and would like to express his thanks for this support, as well as to the members of the Cambridge Zoology Department for their help and the use of their facilities.
ASJC Scopus Subject Areas
- Animal Science and Zoology
- Endocrinology