| 關於黑斑蛙(Rana nigromaculata Hallowell)生殖細胞來源的研究 |
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| 引用本文： | 王應天.關於黑斑蛙(Rana nigromaculata Hallowell)生殖細胞來源的研究[J].分子细胞生物学报,1955(Z1). |
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| 作者姓名： | 王應天 |
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| 作者单位： | 北京大学生物学系; |
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| 摘 要： | Ⅰ.緒論關於蛙類生殖細胞之來源,一般胚胎學教本多依據B.Allen(1907)在Rana pipiens的研究,稱孵化期的幼小蝌蚪(身長,6—7毫米),由腸道頂部擠出一列内胚層細胞,當時尚未見有任何異於其他組成腸道的內胚層細胞的分化,但因其將與生殖細胞來源有關,故名之爲生殖細胞嵴。由於中胚層左右侧板在此區域會合而使該列內胚層細胞與腸道分離而爲生殖細胞索,它的位置就在剛形成的腸系膜基部。不久該索縱裂爲左右兩條,各稍向側方遷移,依附在後主靜脈下壁的外方,微微向體腔中垂懸,同時有體腔膜間皮細胞將其包圍,一齊構成生殖嵴。其中所
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| 关 键 词： | 黑斑蛙 分化 原始 肠系膜 腹部 卵黄 侧板 来源 生殖 |
EXPERIMENTAL INVESTIGATIONS ON THE ORIGIN OF THE PRIMORDIAL GERM CELLS IN THE FROG RANA NIGROMACULA TA HALLOWELL |
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| WANG YING-TIEN.EXPERIMENTAL INVESTIGATIONS ON THE ORIGIN OF THE PRIMORDIAL GERM CELLS IN THE FROG RANA NIGROMACULA TA HALLOWELL[J].Journal of Molecular Cell Biology,1955(Z1). |
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| Authors: | WANG YING-TIEN |
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| Institution: | WANG YING-TIEN Department of Biology,Peking University |
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| Abstract: | Concerning the origin and formation of germ cells in Anurans most textbooks of embryology adapt the report of B. Allen (1907) on Rana pipiens. According to Allen, the primordial germ cells (P.G.C.) appear first about the time of hatching (Shumway stage 21). There is a slight median dorsal ridge known as P.G.C. cord, medio-dorsal to the enteron. Having left the base of mesentery, the P.G.C. migrate into the genital ridges, and are to be transformed into functional germ cells at later stages. L. Bounoure (192... |
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