Xenopus oocyte maturation: cytoplasm alkalization is involved in germinal vesicle migration.
Parenchymatous cells that turned into sclereids included prominent nuclei and dense cytoplasm, although their walls were thick and showed distinct pit fields (fig. 9).
Anteriorly, the granules are much more numerous, almost filling the cytoplasm, surrounding small blind-ending canals.
Most morphological alterations were presented by the vacuolization of embryonic cells, disintegrated cytoplasm, swollen mitochondria and dilatation in rough endoplasmic reticula.
Only oocytes with one or more completed layers of unexpanded cumulus cells and evenly granulated cytoplasm were used.
Only oocytes with one or more complete layers of unexpanded cumulus cells and an evenly granulated cytoplasm were selected.
Only oocytes with evenly granulated cytoplasm surrounded by multiple layers of compact cumulus cells were used in all the experiments.
The oocytes surrounded by compact cumulus and with evenly granulated cytoplasm were selected.
