Vision in the fireflyPhoturis lucicrescens (Coleoptera: Lampyridae): Spectral sensitivity and selective adaptation in the compound eye |
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Authors: | Abner B Lall Egbert T Lord C Ovid Trouth |
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Institution: | (1) Department of Biology and the McCollum-Pratt Institute, The Johns Hopkins University, 21218 Baltimore, Maryland, USA;(2) Department of Zoology, Howard University, 20059 Washington, District of Columbia, USA;(3) Department of Physiology and Biophysics, College of Medicine, Howard University, 20059 Washington, DC, USA |
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Abstract: | Summary The waveform of the electroretinograms (ERGs) recorded from the compound eyes in the dark-active fireflyPhoturis lucicrescens was different in the short (near-UV and violet) and long (green-yellow) wavelengths (Fig. 1). The spectral sensitivity curves in the dark and chromatic adaptation conditions suggested the presence of receptor types in the short (near-UV, Fig. 4, and violet, Fig. 5) and long wavelength (green; max 550 nm, Figs. 3–5) regions of the spectrum. The green peak is in correspondence with the species' bioluminescence emission peak at 554 nm (Fig. 3c).Abbreviations
DA
dark-adapted
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ERG
electroretinogram
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VP
visual pigment
Contribution No. 1112 of the McCollum-Pratt Institute and Department of Biology, The Johns Hopkins University |
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