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논문 기본 정보

자료유형
학술저널
저자정보
김문규 (한양대학교 자연대 생물학과) 이양한김종흡윤용달 (한양대학교 자연대 생물학과)
저널정보
한국통합생물학회 동물학회지 동물학회지 제30권 제4호
발행연도
1987.1
수록면
351 - 370 (20page)

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초록· 키워드

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This experiment has been done in order to study the correlation between the ultrastructure changes and the atresia phenomenon of the follicles in porcine ovary. The ovaries were assorted according to the presence or absence of corpus luteum. Thereafter, the follicles were classified into normal, pyknotic, necrotic and cystic groups by atretic characteristics on the histological observation, and then their ultrastructures were examined with an electron microscope. The results were as followings. 1. In normal group, granulosa cells represented the ultrastructural characteristics of protein-synthesizing cells. Since the initiation of atresia, the line structure of granulosa cells showed many of the characteristic features of steroid-secreting cells, followed by gradual pyknosis. 2. In necrotic group of the ovary without corpus luteum, the theca interns became hypertrophic and displayed the ultrastructural features of active steroidsecreting cells. But this phenomenon was not seen in the follicles of the ovary with corpus luteum. 3. Degenerative changes of cumulus cells were similar to those of granulosa cells, and the degenerating oocytes showed the degeneration of cellular organelles, cytoplasmic vacuolization and disappearance of microvilli on the surface. The degeneration of granulosa cells tended to procede that of oocytecumulus complex in the follicles of the ovary having no corpus luteum, but this tendency was reversed in the case of presence of corpus luteum. In conclusion, it may be unable to identi(y the initiation of follicular atresia

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