Tension-dependent collective cell movements in the early gastrula ectoderm of Xenopus laevis embryos

2000 ◽  
Vol 210 (2) ◽  
pp. 92-104 ◽  
Author(s):  
L. V. Beloussov ◽  
N. N. Louchinskaia ◽  
A. A. Stein
Keyword(s):  
Xenopus Laevis ◽  
Cell Movements ◽  
Early Gastrula ◽  
Xenopus Laevis Embryos

Role of cooperative cell movements and mechano-geometric constrains in patterning of axial rudiments in Xenopus laevis embryos

2007 ◽  
Vol 38 (3) ◽  
pp. 152-163
Author(s):  
L. V. Beloussov ◽  
E. G. Korvin-Pavlovskaya ◽  
N. N. Luchinskaya ◽  
E. S. Kornikova
Keyword(s):  
Xenopus Laevis ◽  
Cell Movements ◽  
Axial Rudiments ◽  
Xenopus Laevis Embryos

The nature of developmental restrictions in Xenopus laevis embryos

Development ◽  
1986 ◽  
Vol 97 (Supplement) ◽  
pp. 65-73
Author(s):  
Janet Heasman ◽  
Alison Snape ◽  
J. C. Smith ◽  
C. C. Wylie
Keyword(s):  
Xenopus Laevis ◽  
Single Cells ◽  
Cell Interaction ◽  
Blastula Stage ◽  
Vegetal Pole ◽  
Transplantation Technique ◽  
Pole Cells ◽  
Early Gastrula ◽  
Xenopus Laevis Embryos

Fate maps of the late blastula stage of the Xenopus laevis embryo indicate that the cells of the vegetal pole area are destined to become part of the endoderm germ layer (Keller, 1975; Heasman, Wylie, Hausen & Smith, 1984). By labelling single cells from this region and transplanting them into the blastocoel cavity of host embryos, we have shown that the determinative process that restricts blastomeres to this their normal fate occurs between the early blastula and early gastrula stages (Heasman et al. 1984). To progress towards an understanding of this process, we need to establish some fundamental points. In particular, the following issues are discussed here. (1) Is cell interaction required for determination to proceed? (2) What is the cellular nature of determination? We have used the labelling and transplantation technique described previously (Heasman, Snape, Smith & Wylie, 1985; Heasman, Snape, Smith, Holwill & Wylie, 1985) to study these questions in relation to the mechanism of determination of vegetal pole cells in Xenopus laevis.

scholarly journals Fate map for the 32-cell stage of Xenopus laevis

Development ◽  
1987 ◽  
Vol 99 (4) ◽  
pp. 527-551 ◽  
Author(s):  
L. Dale ◽  
J.M. Slack
Keyword(s):  
Xenopus Laevis ◽  
Short Range ◽  
Three Dimensional ◽  
Spatial Localization ◽  
Spatial Location ◽  
Fate Map ◽  
Cell Stage ◽  
Range Cell ◽  
Early Gastrula ◽  
Xenopus Laevis Embryos

A complete fate map has been produced for the 32-cell stage of Xenopus laevis. Embryos with a regular cleavage pattern were selected and individual blastomeres were injected with the lineage label fluorescein-dextran-amine (FDA). The spatial location of the clones was deduced from three-dimensional (3D) reconstructions of later stages and the volume of each tissue colonized by labelled cells in each tissue was measured. The results from 107 cases were pooled to give a fate map which shows the fate of each blastomere in terms of tissue types, the composition of each tissue by blastomere, the location of each prospective region on the embryo and the fate of each blastomere in terms of spatial localization. Morphogenetic movements up to stage 10 (early gastrula) were assessed by carrying out a number of orthotopic grafts at blastula and gastrula stages using donor embryos uniformly labelled with FDA. Although there is a regular topographic projection from the 32-cell stage this varies a little between individuals because of variability of positions of cleavage planes and because of short-range cell mixing during gastrulation. The cell mixing means that the topographic projection fails for anteroposterior segments of the dorsal axial structures and it is not possible to include short segments of notochord or neural tube or individual somites on the pregastrulation fate map.

scholarly journals Iron nanoparticle bio-interactions evaluated in Xenopus laevis embryos, a model for studying the safety of ingested nanoparticles

2019 ◽  
Vol 14 (2) ◽  
pp. 196-213
Author(s):  
Patrizia Bonfanti ◽  
Anita Colombo ◽  
Melissa Saibene ◽  
Luisa Fiandra ◽  
Ilaria Armenia ◽  
...  
Keyword(s):  
Xenopus Laevis ◽  
Iron Nanoparticle ◽  
Xenopus Laevis Embryos ◽  
Ingested Nanoparticles

Neural-inducing activity of nuclei and nuclear fractions from Xenopus laevis embryos

1986 ◽  
Vol 195 (2) ◽  
pp. 123-127 ◽  
Author(s):  
G�nther Bretzel ◽  
Hildegard Tiedemann
Keyword(s):  
Xenopus Laevis ◽  
Xenopus Laevis Embryos

Teratogenic effects of five anticancer drugs on Xenopus laevis embryos

2016 ◽  
Vol 133 ◽  
pp. 90-96 ◽  
Author(s):  
Marina Isidori ◽  
Concetta Piscitelli ◽  
Chiara Russo ◽  
Marie Smutná ◽  
Luděk Bláha
Keyword(s):  
Xenopus Laevis ◽  
Anticancer Drugs ◽  
Teratogenic Effects ◽  
Xenopus Laevis Embryos
Sign in / Sign up

Export Citation Format

Share Document