Light-sensitivity of isolated pigment cells of the sea urchin Centrostephanus longispinus

@article{Weber1974LightsensitivityOI,
  title={Light-sensitivity of isolated pigment cells of the sea urchin Centrostephanus longispinus},
  author={Walter Paul Weber and M. Dambach},
  journal={Cell and Tissue Research},
  year={1974},
  volume={148},
  pages={437-440}
}
Pigment cells isolated from the epithelium of the sea urchin Centrostephanus longispinus display light-sensitivity in the same manner as in normal tissue. In complete darkness they have a round to ovoid shape. On illumination a successive extension of pigment-bearing processes can be observed. Darkness leads to a successive retraction of the pseudopodia.