Germinal vesicle breakdown in the Xenopus laevis oocyte : description of a transient microtubular structure
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منابع مشابه
Germinal vesicle breakdown in the Xenopus laevis oocyte: description of a transient microtubular structure.
During progesterone-induced meiotic maturation of Xenopus oocytes in vitro, 7 morphological stages were defined. Using cytological analysis, nuclear breakdown was divided into three stages. Stage 1 corresponded to basal germinal vesicle breakdown. Stage 2 was characterized by the advent and development of a fibrillar network formed by microtubules at the basal part of the nucleus. Below, a lame...
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Mouse oocytes were cultured in the presence of dibutyryl cyclic AMP (dbcAMP) and various agents that affect cytoplasmic calcium concentrations. Treatment that inhibited calcium uptake potentiated the inhibitory effect of dbcAMP and treatments which stimulated cellular calcium uptake overcame the effect of dbcAMP. Elevated extracellular calcium (greater than 10 mM) significantly decreased the in...
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ژورنال
عنوان ژورنال: Reproduction Nutrition Développement
سال: 1981
ISSN: 0181-1916
DOI: 10.1051/rnd:19810112