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Spectral sensitivity of screening pigment migration in the compound eye of manduca sexta


, : Spectral sensitivity of screening pigment migration in the compound eye of manduca sexta. Journal of Comparative Physiology A Sensory Neural & Behavioral Physiology 153(1): 59-66

The pupillary response in the compound eye of M. sexta results from pigment migration in pigment cells located distal to the retina. Reflectance photometry was used to measure the spectral sensitivity of the pupillary response, and pupillary action spectra was compared with the ERG [electroretinogram] spectral sensitivity function and the absorption spectra of retinal visual pigments. The spectral sensitivity of the pupillary response from 460-690 nm matches the ERG action spectrum, and both correspond to the absorption spectrum of the long wave length photopigment (P520, .lambda.max = 520 nm) present in the retina. There is a 2nd peak in pupillary action spectra between 410 and 450 nm that varies from eye to eye in its height relative to the maximum at 520 nm. The short wavelength peak corresponds to the violet receptors of the retina, whose existence was inferred from selective adaptation experiments and from the presence of a violet sensitive photopigment (P440, .lambda.max .simeq. 440 nm). A violet peak is not prominent in the dark-adapted ERG spectral sensitivity function. The variable violet peak in pupillary action spectra may reflect variation in relative input to the pigment cells from the green and violet receptors. The pupillary response is probably driven by way of the retinal receptors, rather than depending on a photosensitive system within the pigment cells themselves. As in other insects, the pupillary response in Manduca provides the possibility for non-invasively measuring visual fraction.

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Schmitt P.; Holmes R.K., 1991: Iron dependent regulation of diphtheria toxin and siderophore expression by the cloned corynebacterium diphtheriae repressor gene dtxr in strains of corynebacterium diphtheriae c7. Abstracts of the General Meeting of the American Society for Microbiology 91: 27

Van De Graaf E.A.; Kobesen A.; Out T.A.; Weber J.A.; Jansen H.M., 1988: The permeability of the respiratory membrane. American Review of Respiratory Disease 137(4 PART 2): 420

Snoflak, J; Vachova, H., 1982: Vaccine against virous infection in goslings (Derszys disease). Veterinarstvi 2(1): 33-35

Howard, Peter, 1994: Reduced barometric pressure. Raffle, P A B [Editor], Adams, P H [Editor], Baxter, P J [Editor], Lee, W R [Editor] Hunter's diseases of occupations, 8th edition 348-362

Collins, S., 1993: Recent perspectives on the molecular structure and regulation of the beta-2-adrenoceptor. Life Sciences 52(26): 2083-2091

Rapalini, A.E; Vilas, J.F; Valencio, D.A, 1988: New evidence for an allochthonous plate in central southwestern Argentina?. Preliminary paleomagnetic data for rocks from the Choiyoi Formation, exposed at the Cerro Chachil and Sierra de Catan-Lil (39.1°S, 70.5°W, Cordillera Principal, Argentina), assigned sensu lato to the Permo-Triassic, are discussed. The directions o...

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Clemens, P. C.; Prankel, B.; Halfman, E.; Erb, N.; Mueller Wickop, J., 1993: Extracellular purine nucleosides elevated in chronic recidiving central nervous injury by deranged metabolism in phenylketonuria. Medical Hypotheses 41(3): 287-288

Brown, Fa; Chow, Cs, 1973: Lunar-correlated variations in ater uptake by bean seeds. Biological bulletin: 145 (2) 265-278

Harrison G.G.; Branson R.S.; Vaucher Y.E., 1983: Association of maternal smoking with body composition of the new born. The relationship of maternal cigarette smoking to anthropometric measurements of the newborn was investigated in 285 full-term Caucasian infants. Mothers were classified as smokers if they reported smoking before and during the pregnancy (109) and...