Abstract
In situ hybridization experiments carried out with β-tubulin cDNA onXenopus laevis embryos showed a marked increase in β-tubulin mRNA in neural plate and lateral ectoderm after gastrulation, when chordomesoderm and ectoderm come in contact. Experiments with fragments of presumptive neural ectoderm explanted before and after neural induction suggest that the cells are already specified in neural sense at the blastula stage, long before the neural induction.
Riassunto
Ľibridazionein situ condotta su embrioni diXenopus laevis con cDNA di β-tubulina ha dimostrato un forte incremento nelle cellule della piastra neurale e delľectoderma laterale dopo la gastrulazione, quando il cordomesoderma viene a contatto con ľectoderma. Esperimenti condotti su espianti di ectoderma neurale presuntivo eseguiti prima e dopo ľinduzione neurale suggeriscono che le cellule abbiano già un orientamento specifico in senso neurale allo stadio di blastula. prima che ľinduzione avvenga.
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Nella seduta del 12 maggio 1990.
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Bernardi, F.D., Fascto, U., Sotgia, C. et al. Synthesis of β-tubulin mRNA in neural induction and specification. Rend. Fis. Acc. Lincei 1, 447–458 (1990). https://doi.org/10.1007/BF03001780
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DOI: https://doi.org/10.1007/BF03001780