Redox Absorption Spectra from Single Pigment Cells of Squid

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Science  06 Mar 1959:
Vol. 129, Issue 3349, pp. 644
DOI: 10.1126/science.129.3349.644


Single pigment cells from the squid Loligo forbesi have been studied by microspectrophotometry. The absorption spectra obtained show characteristic changes on reduction and oxidation which are compatible with those found in ommochromes. The presence of melanoid substances, however, cannot be excluded.