Summary
AVolvox species was stained vitally with various dyes. As a result, it was found that the basal hemisphere was especially stainable with aurantia in mother colonies, and with trypan blue in daugher colonies before the natural inversion. When soaked in Bismarck brown solution young daughter colonies are mechanically inverted from the basal pole. This seems to be attributed to the volume decrease of the cavity caused by the dehydration of gelatinous matter which occupies that part. Similar phenomenon is possible to be occurred by use of hypertonic solutions.
The writer expresses his cordial thanks to Dr. Mary Pocock of the South African Museum for her kind guidance forVolvox research.
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Literature
Duboscq, O., and O. Tuzet, 1937: L'ovogénèse, la fécondation et les premiers stades du dévelopment des éponges calcaires. Arch. Zool. Expér. et Gén.79, 157–316.
Hyman, L. H., 1942: The transition from the unicellular to the multicellular individual. Biol. Symposia8, 27–42.
Pocock, M. A., 1933:Volvox in South Africa. Ann. S. African Museum16, 523–646.
Prát, S., 1934: Stimulation plasmolysis on marine algae. Acta Adriatica4, 1–20.
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Summary of this investigation was reported in Japanese on Organic Evolution, Sapporo, Vol. 2, 1955.
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Nakazawa, S. Vital staining and mechanical inversion ofVolvox . Protoplasma 48, 425–428 (1957). https://doi.org/10.1007/BF01248090
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DOI: https://doi.org/10.1007/BF01248090