Cyst hatching in Anostraca accelerated by retinoic acid, amplified by Calcium Ionophore A23187, and inhibited by Calcium-channel blockers
✍ Scribed by Henri J. Dumont; Pascal Casier; Natesan Munuswamy; Christine Walsche
- Book ID
- 104613850
- Publisher
- Springer
- Year
- 1992
- Tongue
- English
- Weight
- 497 KB
- Volume
- 230
- Category
- Article
- ISSN
- 1573-5141
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✦ Synopsis
Cyst hatching, under standardized conditions, of the Anostracan species Thamnocephalusplatyurus and Streptocephalus dichotomus was significantly accelerated but not increased by applying the morphogen retinoic acid (RA). Cyst hatching was enhanced but not accelerated by artificially increasing the inflow of c a 2 + to the embryonic cells, using Calcium Ionophore A 23 187. Cyst hatching was accelerated and amplified, to a level in excess of the summed effects of each treatment, by a combined application of RA and ionophore. It was inhibited almost quantitatively by the Calcium-channel blockers Nifedipin and Verapamil. The significance of these findings is discussed.