Summary
Annulate lamellae were observed in the cytoplasm of an atretic ovarian oocyte of the golden hamster. This finding is reported because of the rarity of such lamellae in mammalian oocytes (except in the human). Apparent duplications of portions of the nuclear envelope of the same oocyte were also observed. The possible relation of the duplications to the annulate lamellae and to cytoplasmic twin membrane structures characteristic of the hamster oocyte is discussed.
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During the preparation of this manuscript I wrote to Dr.Daniel Szollosi about these findings. He replied that he has observed annulate lamellae in a fertilized hamster ovum but never in the ovarian oocyte.
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Weakley, B.S. Annulate lamellae in the oocyte of the golden hamster. Z. Zellforsch. 96, 229–236 (1969). https://doi.org/10.1007/BF00338770
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DOI: https://doi.org/10.1007/BF00338770