Dynamic Growth of Oocytes of the Medaka, Oryzias latipes : I. A Relationship between Establishment of the Animal-Vegetal Axis of the Oocyte and Its Surrounding Granulosa Cells
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概要
- 論文の詳細を見る
In previtellogenic oocytes of the freshwater teleost, Oryzias latipes, the yolk nucleus is a prominent structure in the cytoplasm. The process by which the animal-vegetal (A-V) axis is established in these oocytes was observed by focusing on the yolk nucleus, granulosa cells and attaching filaments using light and electron microscopy. Prior to appearance of the rudiments of attaching filaments a special area was recognized near the yolk nucleus of early stage III oocytes by gathering of granulosa cells with irregular-shaped nuclei. The rudiments of attaching filaments clearly appeared in the area where granulosa cells gathered. The area with a cluster of granulosa cells and the rudiments of attaching filaments corresponded to the position of the yolk nucleus. In late stage III, the future vegetal pole area (VPA) was easily recognizable by the presence of the rudiments of attaching filaments. The present results suggest that the vegetal pole may be primarily determined by the random position of the yolk nucleus and established by reciprocal interactions between the cortical cytoplasm containing the yolk nucleus and its surrounding granulosa cells. It was postulated that the animal pole is determined by differentiation of the micropylar cell from a granulosa cell and by locomotion of granulosa cells around the axis connecting the centers of the germinal vesicle and the yolk nucleus before the initiation of vitellogenesis.
- 社団法人日本動物学会の論文
- 1996-12-15
著者
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NAKASHIMA Seiko
Department of Biology, Graduate School of Natural Sciences, Nagoya City University
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Iwamatsu Takashi
Department Of Biology Aichi University Of Education
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Nakashima S
Department Of Biology Graduate School Of Natural Sciences Nagoya City University
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Nakashima Seiko
Department Of Biology Aichi University Of Education
関連論文
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- 'Nectosome' : a novel cytoplasmic vesicle containing nectin in the egg of the sea urchin, Temnopleurus hardwickii
- FOMATION AND ACCUMULATION OF NECTIN-CONTAINING GRANULES DURING OOGENESIS IN THE SEA URCHIN, TEMNOPLEURUS HARDWICKI(Developmental Biology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- Regional Differences in Granulosa Cells of Preovulatory Medaka Follicles
- Distribution and phylogeny of rice fish and their relatives belonging to the suborder Adrianichthyoidei in Sulawesi, Indonesia
- Sex reversal in medaka treated in vitro with 17α-methyldihydrotestosterone during oocyte maturation
- Experimental Hybridization among Oryzias Species. II. Karyogamy and Abnormality of Chromosome Separation in the Cleavage of Interspecific Hybrids between Oryzias latipes and O. javanicus
- Studies on fertilization in the teleost IV. Effects of aphidicolin and camptothecin on chromosome formation in fertilized medaka eggs
- Studies on fertilization of the teleost. II. Nuclear behavior and changes in histone H1 kinase
- INCREASE IN INTRACELLULAR CALCIUM IONS UPON FERTILIZATION IN ANIMAL EGGS (Histo- and Cytochemistry in Tissue Culture)
- Changes in chorion proteins induced by the exudate released from the egg cortex at the time of fertilization in the teleost, Oryzias latipes
- SEX REVERSAL IN THE MEDAKA TREATED IN VITRO 17α-METHYLDIHYDROTESTOSTERONE DURING OOCYTE MATURATION(Endocrinology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- SEX REVERSAL IN THE MEDAKA ORYZIAS LATIPES BY BRIEF IMMERSION TREATMENT OF FERTILIZED EGGS TO NONAROMATIZABLE ANDROGEN(Endocrinology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- In Vivo Fertilization and Development of Medaka Eggs Initiated by Artificial Insemination(Reproductive Biology)
- SEX REVERSAL IN THE MEDAKA (ORYZIAS LATIPES) BY A SINGLE BRIEF EXPOSURE OF FERTILIZED EGGS TO ESTRADIOL-17β(Endocrinology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
- RAPID COMMUNICATION : Sperm Behavior in the Micropyle of the Medaka Egg
- Effect of Micropylar Morphology and Size on Rapid Sperm Entry into the Eggs of the Medaka
- Oogenesis in the Medaka Oryzias latipes : Stages of Oocyte Development : Developmental Biology
- Inorganic contents of the medaka egg before and after cortical reaction
- Changes in the chorion and sperm entry into the micropyle during fertilization in the teleostean fish, Oryzias latipes
- Oil droplets and yolk spheres during development of Medaka embryos
- Egg Activation
- Stages of Normal Development in the Medaka Oryzias latipes
- Scientist, H. Uwa passed away at 53 : a taxonomist of the medaka
- Evidence for Involvement of the Exudate Released from the Egg Cortex in the Change in Chorion Proteins at the Time of Egg Activation in Oryzias latipes
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- Mechanical Dechorionation of Fertilized Eggs for Experimental Embryology in the Medaka
- On Oryzias javanicus Collected at Jakarta,Singapore and West Kalimantan
- Electron microscopic observations of karyogamy in the fish egg
- Inability of Brain Microtubules to Cause Cleavage Induction in Oryzias latipes Eggs
- Morphology of Filaments on the Chorion of Oocytes and Eggs in the Medaka(Developmental Biology)
- Inhibitory Effect of Sera from Various Animals on in vitro Maturation of the Oocyte
- Studies on Oocyte Maturation of the Medaka,Oryzias latipes : VII.Effects of Pinealectomy and Melatonin on Oocyte Maturation
- On a Relationship between Oocyte and Follicle Cells around the Time of Ovulation in the Medaka,Oryzias latipes
- Development and fine structure of the yolk nucleus of previtellogenic oocytes in the medaka Oryzias latipes
- Studies on fertilization in the teleost. I. Dynamic responses of fertilized medaka eggs
- Karyotype and banding analyses of Oryzias celebensis (Oryziatidae, Pisces) in cultured cells.
- Karyotype and cellular DNA content of the Indian ricefish, Oryzias melastigma.