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ECB-ART-52319
Dev Growth Differ 1979 Jan 01;212:129-140. doi: 10.1111/j.1440-169X.1979.00129.x.
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SOME ASPECTS ON PIGMENT CELL DISTRIBUTION AND FUNCTION IN THE DEVELOPING ECHINOPLUTEUS OF PSAMMECHINUS MILIARIS.

Ryberg E , Lundgren BO .


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Pigment cells in Psammechinus miliaris larvae are frequently found in regions which are morphogenetically active. They can be seen in living larvae from the the midgastrula stage up to metamorphosis. Their early development and typical characters as seen by the electron microscope are described. Histochemical methods have revealed carotenoids which are preferentially located in the pigment granules. The findings are discussed in relation to published data on photopigments. It is suggested that caroteno-proteins of the pigment cells are involved in photo-activated processes which support larval migration and/or morphogenesis.

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