Nature of the 1-Methyladenine-Requiring Phase in Maturation of Starfish Oocytes : (1-methyladenine/oocyte maturation/oocyte stiffness/caffeine/starfish)
โ Scribed by SHIN-ICHI NEMOTO
- Book ID
- 108942476
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 782 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0012-1592
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## Abstract Fully grown oocytes of the starfish Asterina pectinifera, undergo breakdown of their germinal vesicles and subsequent maturation on treatment with 1โmethyladenine (1โMeAde). However, oocytes treated with seawater containing 0.010% Triton Xโ100 lost the capacity to respond to 1โMeAde and
## Abstract The temporal relation between hormone uptake, metabolism, and reinitiation of meiosis was investigated following in vitro incubation of immature starfish oocytes with the maturation inducing hormone 1โmethyladenine (1โMA) and/or ^3^Hโ1โmethyladenine (^3^Hโ1โMA). Oocyte incorporation of
## Abstract The ovarian hormone 1โmethyladenine (1โMA) stimulates fully grown starfish oocytes to undergo germinal vesicle breakdown (GVB). __Patiria miniata__ oocytes treated with 10^โ6^ M 1โMA underwent GVB by 45 minutes of treatment. However, in the absence of extracellular Ca^++^ GVB was delaye