Homoiogenetic Neural Inducing Activity of the Presumptive Neural Plate of Xenopus Laevis. (Xenopus laevis/neural induction/homoiogenetic induction/heteroplastic transplantation/Xenopus borealis)

Neural Explant Cultures from Xenopus laevis.

The complex process of axon guidance is largely driven by the growth cone, which is the dynamic motile structure at the tip of the growing axon. During axon outgrowth, the growth cone must integrate multiple sources of guidance cue information to modulate its cytoskeleton in order to propel the growth cone forward and accurately navigate to find its specific targets(1). How this integration occ...

ترتیب اعصای جانبی در دم لارو of Xenopus laevis

Histological features of neural induction in Xenopus laevis.

It was first established by grafting experiments that neural induction occurs in Xenopus laevis and that it is the mesoderm in the dorsal lip of the blastopore which normally exercises this function. The subsequent histological work provided the following information: At stage 10i mesodermal invagination was already well under way, in advance of the formation of the archenteric cavity. This con...

Paternal gene expression in developing hybrid embryos of Xenopus laevis and Xenopus borealis.

We have studied protein synthesis in the viable hybrid Xenopus laevis (female) X Xenopus borealis (male) using 2D gel electrophoresis. Fourteen borealis-specific proteins were studied. Two of these proteins appeared by the gastrula stage, five in the gastrula and the rest later. Where homologous laevis proteins were tentatively identified, androgenetic haploid hybrids were used to study whether...

Xbra3 induces mesoderm and neural tissue in Xenopus laevis.

Homologues of the murine Brachyury gene have been shown to be involved in mesoderm formation in several vertebrate species. In frogs, the Xenopus Brachyury homologue, Xbra, is required for normal formation of posterior mesoderm. We report the characterisation of a second Brachyury homologue from Xenopus, Xbra3, which has levels of identity with mouse Brachyury similar to those of Xbra. Xbra3 en...