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Die Reaktion der Chromatophoren des Seeigels Centrostephanus longispinus auf Licht

The reaction of the chromatophores of the sea urchin centrostephanus longispinus to light

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Summary

  1. 1.

    When stimulated with white light of intensity between 0,4 and 53 Lux the chromatophores on isolated spine bases of Centrostephanus longispinus show a degree of pigment dispersion which is proportional to the light intensity (Fig. 2).

  2. 2.

    With stronger intensities, light induces a maximal pigment dispersion; darkness causes a maximal pigment concentration. Concentration is quicker than dispersion. In different chromatophore stages both processes differ in the forms of pigment distribution (Fig. 3).

  3. 3.

    The most common chromatophores are brown but there are also violet and yellow ones; they differ in the size and form of the pigment granules. With the method employed a difference in the reaction to white light could not be demonstrated. Possibly they are different developmental stages of one single type of chromatophore.

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Literatur

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Authors and Affiliations

  1. Lehrstuhl für Tierphysiologie, Zoologisches Institut der Universität zu Köln, Deutschland

    Martin Dambach

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  1. Martin Dambach
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Additional information

Die Untersuchungen wurden an der Zoologischen Station Neapel ausgeführt und durch eine Beihilfe der Deutschen Forschungsgemeinschaft unterstützt.

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Dambach, M. Die Reaktion der Chromatophoren des Seeigels Centrostephanus longispinus auf Licht. Z. vergl. Physiologie 64, 400–406 (1969). https://doi.org/10.1007/BF00340434

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  • DOI: https://doi.org/10.1007/BF00340434

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