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자료유형
학술저널
저자정보
Chung, Ee-Yung (Korea Marine Environment & Ecosystem Institute) Choi, Ki-Ho (West Sea Fisheries Research Institute, National Fisheries Research and Development Institute) Jun, Je-Cheon (West Sea Fisheries Research Institute, National Fisheries Research and Development Institute) Choi, Moon-Sul (Department of Marine Biotechnology, Kunsan National University) Lee, Ki-Young (Department of Marine Biotechnology, Kunsan National University)
저널정보
한국통합생물학회 Animal cells and systems Animal cells and systems 제13권 제1호
발행연도
2009.1
수록면
49 - 57 (9page)

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For the study of the reproductive mechanism associated with the process of vitellogenesis, oocyte development and vitellogenesis during oogenesis in female Boleophthalmus pectinirostris were investigated by electron microscopic observations. The ovary consists of a pair of saccular structures with many ovarian lobules. In the early vitellogenic oocyte, the Golgi complex plays an important role leading to the formation of yolk vesicles containing carbohydrate yolks. At this time many pinocytotic vesicles containing yolk precursors are observed in the cytoplasm near the region of initial formation of the zona radiata. In the late vitellogenic oocytes, the multivesicular bodies, which are formed by modified mitochondria, are involved in the formation of the primary yolk granules. Precursors of yolk granules and multivesicular bodies develop to primary yolk globules with participation of pinocytotic vesicles. After primary yolk globules mix with each other, they develop into secondary and tertiary yolk globules. Based on these findings, vitellogenesis of B. pectinirostris occurs by way of the processes of endogenous autosynthesis and exogenous heterosynthesis. The process of autosynthesis involves the combined activity of the Golgi complex, mitochondria, and multivesicular bodies. However, the process of heterosynthesis involves pinocytotic incorporation of extraovarian precursors into the zona radiata of vitellogenic oocytes by way of the thecal cell layers and granulosa cells.

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