Coagulation of sea urchin egg protoplasm by high salt concentrations
β Scribed by T. Takahashi; M. Douglas; R.J. Williams
- Book ID
- 115849541
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 116 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0011-2240
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π SIMILAR VOLUMES
The contents of the living cell appear to possess a fairly high degree of fluidity, although many manifestations of biological activity seem hard to reconcile with the conception of protoplasm as a true liquid devoid of continuous structure.
## Abstract Sperm nucleus decondensing activity (NDA) of eggs has been investigated using the gametes of the sea urchin, __Lytechinus variegatus__. To assay for NDA, isolated sperm heads were exposed to homogenate from mature unfertilized ova and then examined with phaseβcontrast optics. NDA is ret