Changes in Cortical Granule Distribution within Bovine Oocytes during Maturation and Fertilization In Vitro

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概要

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• The distributional changes of cortical granules (CGs) in bovine oocytes during maturation and fertilization in vitro were histochemically examined with lectin. Lens culinaris agglutinin (LCA)-reactive CGs were densely distributed as irregular aggregates of particles throughout the peripheral cytoplasm of every oocyte immediately after collection, while a few were individually dispersed (type I). As the stages of oocyte maturation proceeded, the aggregated CGs collapsed (type II), and the CGs became distributed individually in the cortical cytoplasm (type III). When matured oocytes were inseminated, the CGs completely disappeared in 40, 48 and 69% of oocytes at 3, 6 and 12 h after insemination (type V), respectively. However, type IV oocytes with very few CGs in the inner cytoplasm were always present in about 10% at any time after insemination.

• 日本繁殖生物学会の論文
• 1995-02-01

著者

• Hosoe Misa

  Department Of Animal Reproduction National Institute Of Animal Industry

• NIIMURA SUEO

  Department of Animal Science, Faculty of Agriculture, Niigata University

• Niimura Sueo

  Department Of Animal Science Faculty Of Agriculture Niigata University

• Hosoe Misa

  Department Of Animal Science Faculty Of Agriculture Niigata University

関連論文

• Activation of protein kinase C induces cortical granule exocytosis in a Ca^-independent manner, but not the resumption of cell cycle in porcine eggs
• Changes in the amount of cytoplasmic inclusions in mouse oocytes during meiotic maturation in vivo and in vitro
• Development of the competence of bovine oocytes to release cortical granules and block polyspermy after meiotic maturation
• Changes in Cortical Granule Distribution within Bovine Oocytes during Maturation and Fertilization In Vitro
• Dynamics of CD3+ T-cell Distribution throughout the Estrous Cycle and Gestation in the Bovine Endometrium

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