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  • Title: Evidence for a sensitising pigment in fly photoreceptors.
    Author: Kirschfeld K, Franceschini N, Minke B.
    Journal: Nature; 1977 Sep 29; 269(5627):386-90. PubMed ID: 909585.
    Abstract:
    Many photoreceptor cells in invertebrates have a dual-peak spectral sensitivity. Evidence is presented that in fly photoreceptors the ultraviolet peak is due to a photostable pigment that absorbs light quanta and transfers the energy to the blue-absorbing visual pigment.
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