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Journal of Experimental Biology 33,119-123 (1956)
Published by Company of Biologists 1956

On the Light Response of the Chromatophore of the Sea-Urchin, Diadema Setosum (Leske)

MASAO YOSHIDA 1

1 Misaki Marine Biological Station, Misaki, Kanagawa-ken, Japan

1. The nature of the photic response of chromatophores distributed over the test of Diadema setosum was investigated.

2. By applying a minute light spot to the various parts of single chromatophores, it was observed that the chromatophore can react locally to the light stimulus.

3. It is concluded that the photosensitivity resides within the chromatophore itself.

Submitted on April 19, 1955






© The Company of Biologists Ltd 1956