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Updated: Jul 13, 2026

Visualizing the Node and Notochordal Plate In Gastrulating Mouse Embryos Using Scanning Electron Microscopy and Whole Mount Immunofluorescence
Published on: November 6, 2018
[Regression of Hensen's node and axial growth of the embryo]
1Institut d'Embryologie cellulaire et Moléculaire du CNRS, Nogent-sur-Marne. jbcharr@infobiogen.fr
Abstract:
Hensen's node is the gastrulation center in the avian embryo. It is the homologue of the amphibian dorsal blastopore lip and the zebrafish shield. It contains the progeny of all midline cells (floor plate of the neural tube, notochord and dorsal endoderm). However, microsurgical experiments on Hensen's node allow to think that organizer function is due to an extremely limited region situated in the caudal part of Hensen's node which corresponds to the boundary between prospective axial mesoderm rostrally and paraxial mesoderm caudally. This interface is essential for Hensen's node regression and organization of the caudal part of the body.
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