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Morphogenetic effects of centrifugation on the isolated ectoderm and whole embryo of some anurans

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An Erratum to this article was published on 01 June 1946

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Zusammenfassung

Zentrifugierung der Froschkeime gerade vor oder am ersten Anfang der Gastrulation bringt bekanntlich ein sekundäres axiales System an der ventralen oder lateralen Flanke der Embryonen hervor. Um die Annahme zu prüfen, dass diese spino-kaudalen Gebilde aus dem präsumptiven Ektoderm durch eine direkte Wirkung der Zentrifugierung hervorgehen, wurde isoliertes, präsumptives Ektoderm unter den genau kontrollierten Bedingungen zentrifugiert und gezüchtet. Die Isolate differenzierten Epidermis und Haftdrüsenzellen, aber kein axiales Gewebe. Subzytolytische Behandlung des isolierten, präsumptiven Ektoderms der jungen Gastrulae brachte unorganisierte Neuralgewebe oder archenkephale Gebilde, aber kein spino-kaudales Gewebe hervor. Also gaben die beiden Versuchsreihen keine Unterstützung für die oben genannte Annahme.

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Authors and Affiliations

  1. Biological Institute, Faculty of Science, Nagoya University, Nagoya, Japan

    S. Karasaki & T. Yamada

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  1. S. Karasaki
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  2. T. Yamada
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Supported by a grant from the Rockefeller Foundation, the Scientific Research Found of the Ministry of Education, and the Asahi Grant for Scientific Research.

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Karasaki, S., Yamada, T. Morphogenetic effects of centrifugation on the isolated ectoderm and whole embryo of some anurans. Experientia 11, 191–194 (1955). https://doi.org/10.1007/BF02161313

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