RE-EXAMINATION OF MITOTIC-ACTIVITY IN THE EARLY CHICK-EMBRYO

被引：26

作者：

STERN, CD

机构：

[1] Department of Anatomy and Embryology, University College London, London, WC1E 6BT, Gower Street

来源：

ANATOMY AND EMBRYOLOGY | 1979年 / 156卷 / 03期

关键词：

Cell division; Chick embryo; Mitotic index; Spatial organisation;

D O I：

10.1007/BF00299630

中图分类号：

R602 [外科病理学、解剖学]; R32 [人体形态学];

学科分类号：

100101 ;

摘要：

As a result of extensive mitotic index analysis in colchicine-arrested chick embryos during gastrulation, it was ascertained that the primitive streak is a region of elevated mitotic index as compared to the surrounding tissue. Along the cephalo-caudal axis, the embryo displays two large peaks of mitotic index, one at the posterior end of the primitive streak and the other just anterior to Hensen's node. The length of the various phases of the mitotic period was determined in vitro by time-lapse filming, and the colchicine-arrested mitotic indices in vivo and in vitro were determined and compared for various regions. Some observations regarding the orientation of mitotic spindles and abnormal mitosis in vitro are also included, and the relevance of the above observations to early embryonic development is discussed. © 1979 Springer-Verlag.

引用

页码：319 / 329

页数：11

共 29 条

[1] MONOLAYERING IN TISSUE CULTURE OF FIBROBLASTS FROM DIFFERENT SOURCES [J].