Induction of Trunk Lateral Cells, the Blood Cell Precursors, during Ascidian Embryogenesis
โ Scribed by Satoshi Kawaminani; Hiroki Nishida
- Book ID
- 115597714
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 295 KB
- Volume
- 181
- Category
- Article
- ISSN
- 0012-1606
No coin nor oath required. For personal study only.
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## Abstract During the early stages of embryogenesis of the ascidian __Halocynthia roretzi__ the test cells creep exclusively on the inner surface of the chorion. Concomitant with elongation of the embryonic tail, however, the test cells begin to gather around the embryo and finally cover the whole
Cell-lineage analysis has demonstrated that a pair of the right and left A7.6 cells of a 64-cell embryo of the ascidian Halocynthia roretzi, descendants of A4.1 cells of an 8-cell embryo, give rise to trunk lateral cells (TLCs). In this study, in order to investigate cellular mechanisms involved in
We counted cell numbers during embryogenesis of the ascidian, Halocynthia roretzi, every hour. Cell numbers were determined by counting the numbers of nuclei in squashed embryos. The cell number of a larva just after hatching was approximately 3000. Our study addresses the question of what factors c