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Changes in the shape of the developing vertebrate nervous system analyzed experimentally, mathematically and by computer simulation.
Two forces are necessary and sufficient to produce the transformation of the newt neural plate from a hemispheric sheet of cells one cell thick to a keyhole shape. These forces are: (1) a regionallyExpand
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The origins of neural crest cells in the axolotl.
We address the question of whether neural crest cells originate from the neural plate, from the epidermis, or from both of these tissues. Our past studies revealed that a neural fold and neural crestExpand
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Inductive processes in embryonic development.
JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology andExpand
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Nuclear elongation and cytokinesis in Drosophila montana.
Abstract We have used time-lapse cinematography and electron microscopy to study Drosophila montana embryos during formation of the cellular blastoderm, which occurs shortly after the twelfth mitoticExpand
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The specification of heart mesoderm occurs during gastrulation in Xenopus laevis.
The establishment of heart mesoderm during Xenopus development has been examined using an assay for heart differentiation in explants and explant combinations in culture. Previous studies usingExpand
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Features of embryonic induction.
The patterned distribution of different organs in the amphibian embryo begins with the establishment of two domains, the animal and vegetal regions, that differ in developmental potency. DifferencesExpand
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Embryonic brain enlargement requires cerebrospinal fluid pressure.
Abstract The brain of the chick embryo begins to enlarge abruptly on the second day of incubation. Shortly thereafter, major flexures and torsions of the brain occur, and many bulges and furrowsExpand
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Analysis of morphogenetic movements in the neural plate of the newt Taricha torosa.
Abstract These time-lapse cinematographic studies provide measurements and descriptions of the pathways and speeds of displacement of cell groups in the forming neural plate of a newt. At speedsExpand
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The role of the dorsal lip in the induction of heart mesoderm in Xenopus laevis.
We have examined the tissue interactions responsible for the expression of heart-forming potency during gastrulation. By comparing the specification of different regions of the marginal zone, we showExpand
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