文章摘要
邱高峰,陶铜静.中华绒螯蟹卵黄发生的超微结构研究[J].上海海洋大学学报,1996,(1):8-14
中华绒螯蟹卵黄发生的超微结构研究
ULTRASTRUCTURAL STUDIES ON THE VITELLOGENESIS IN THE CHINENSE MITTEN-HANDED CRAB,ERIOCHEIR SINENSIS (CRUSTACEA, DECAPODA)
  
DOI:
中文关键词: 中华绒螯蟹 卵母细胞 卵黄发生 超微结构
英文关键词: Eriocheir sinensis, Chinese mitten-handed crab, oocyte, vitellogenesis,ultrastructure
基金项目:
邱高峰  陶铜静
上海水产大学渔业学院!200090(邱高峰)
,华东师范大学生物学系!上海200062上海四药股份有限公司(陶铜静)
摘要点击次数: 1044
全文下载次数: 633
中文摘要:
      对中华绒螯蟹卵母细胞卵黄发生全过程进行了电镜观察,结果表明:卵黄发生前期的卵母细胞为小生长期初级卵母细胞,细胞质嗜碱性、无卵黄颗粒,与卵原细胞相比,内质网等细胞组分数量明显增多;卵黄发生期的卵母细胞为大生长期初级卵母细胞,细胞质中出现指滴和大量卵黄颗粒,高尔基复合体、内质网、核糖体和溶酶体等细胞器均参与卵黄合成,细胞核呈生发泡状,细胞表面形成微绒毛,卵周隙中出现致密颗粒物质,但未被卵母细胞吸收;卵
英文摘要:
      The vitellogenesis of the oocytes from the Chinese mitten-Tianded crab, Erlocheir sinensis, was examined by light and electron microscope. The results show that previtellogenic oocy1es belong to prirnary oocytes in a slow developrnent. Each oocyte is surrounded by a 1ayer of follicle cells. The surface of the oolemma show no specializations and is smoth. The ooplasm, containing no yolk granules,possesses the basophilic property.The numbers of the organelles such as endoplasmic reticulum are much greater than in the oogoniuru. One to two condensed nucleolus are prcsent in the nucleus. The vitellogenic oocytes grow fast and their volurne increase significantly. Lipid vesicles and numerious yolk granules appear throughout the ooplasm. The endoplasmlc reticulum, Golgi complex,ribosornes and lysosnles are involves in the formation of yolk granuios. The nucleus become germinal vesicle in which one to threc descontlensed nucleolus are seen. The surface of oocytes forru a few microvilli that proJect into periv1telline space in which electron-dense material are present, but no absorbed by the oocytes. The postvitellogemic oocytes contain a fewer numbers of the organelles. The intra-oocytic synthesis are modified. The layer of follicle cells become very thin. The perivitelline spdce fills with electron-dense material that are ingested by the oocytes by pinocytosis.
HTML 查看全文     下载PDF阅读器
关闭