An electron-microscope and freeze-fracture study of the egg cortex of Brachydanio rerio

@article{Hart1991AnEA,
  title={An electron-microscope and freeze-fracture study of the egg cortex of Brachydanio rerio},
  author={Nathan H. Hart and Gregory C. Collins},
  journal={Cell and Tissue Research},
  year={1991},
  volume={265},
  pages={317-328}
}
We have examined the cortex of the teleost (Brachydanio rerio) egg before and during exocytosis of cortical granules by scanning, transmission, and freeze-fracture electron microscopy. In the unactivated egg, the P-face of the plasma membrane exhibits a random distribution of intramembranous particles, showing a density of 959/μm2 and an average diameter of 8 nm. Particles over P- and E-faces of the membranes of cortical granules are substantially larger and display a significantly lower… CONTINUE READING
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