release was induced by intracoelomically treating the specimens with 0.5M KC1. The harvested eggs were then rinsed thoroughly in Instant Ocean, (Aquarium Systems Co., Mentor, Ohio) (pH 7.801, a synthetic marine water mix. Male urchin testes were removed, placed in a petri dish, and maintained at 4ยฐ
Adenosinetriphosphatase in the mitochondria of unfertilized and newly fertilized sea-urchin eggs
โ Scribed by Monroy, A.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1957
- Tongue
- English
- Weight
- 607 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0095-9898
No coin nor oath required. For personal study only.
โฆ Synopsis
On the occasion of the Symposium on the Bioclicrnical and Structural Basis of Morphogenesis (Utrecht, '52) the prcsent -c~riter ( ' 3 3 ) focused attention on the role that mitochondria may play in the process of the activation of the egg. I t was suggested in particular that upon fertilization the removal of a n inhibitor may be responsible for tlic activation of the mitochondria1 enzymes.
๐ SIMILAR VOLUMES
## Abstract Decreased glycogen radioactivity was followed as an indicator of glycogen utilization following activation of __Strongylocentrotus purpuratus__ eggs. Within 15 minutes of exposure to sperm or ammonia, egg glycogen radioactivity decreased. The level of radioactivity in control (unfertili
## Abstract Phosphatase activities in sea urchin eggs and plutei were investigated by means of histochemical staining of immunoprecipitates. Two protein fractions were obtained by extraction in a hypotonic medium and by detergent treatment of the residual pellet. Three distinctly different phosphat