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Literature DB >> 22730587

The function of photostable pigments in fly photoreceptors.

Abstract

The photoreceptors in the fly's ommatidia contain a bistable visual pigment, which can be shifted back and forth by means of light of appropriate wavelengths. The situation is complicated, however, by the presence of photostable pigments. One of them (located in rhabdomeres no. 1-6) absorbs in the UV, another one (in rhabdomeres no. 7y) in the blue spectral range. Such pigments act as (dichroic) colour filters that modify the spectral and polarisation sensitivity of the photoreceptors by means of absorption. It could be shown furthermore that such pigments can also act as sensitizing pigments that modify spectral sensitivities due to sensitization.

Mesh：

Substances：
Retinal Pigments

Year: 1979 PMID： 22730587 DOI： 10.1007/bf00535442

Source DB: PubMed Journal: Biophys Struct Mech ISSN： 0340-1057

13 in total

5. Ionic and spectral mechanisms of the off response to light in hyperpolarizing photoreceptors of the clam, Lima scabra.

Authors: M C Cornwall; A L Gorman
Journal: Cell Mol Neurobiol Date: 1983-12 Impact factor: 5.046

Review 6. Mechanisms of vitamin A metabolism and deficiency in the mammalian and fly visual system.

Authors: Deepshe Dewett; Khanh Lam-Kamath; Clara Poupault; Heena Khurana; Jens Rister
Journal: Dev Biol Date: 2021-03-25 Impact factor: 3.148

6 in total

The function of photostable pigments in fly photoreceptors.

1. Derivation of photochrome absorption spectra from absorbance difference measurements.

2. Fly photoreceptors. I. Physical separation of two visual pigments in Calliphora retinula cells 1-6.

3. Photostable pigments within the membrane of photoreceptors and their possible role.

4. The contribution of a sensitizing pigment to the photosensitivity spectra of fly rhodopsin and metarhodopsin.

5. [In vivo optical study of photoreceptor elements in the compound eye of Drosophila].

6. The kinetics of visual pigment systems. I. Mathematical analysis.

7. Genetic dissection of the photoreceptor system in the compound eye of Drosophila melanogaster.

8. SENSITIVITY OF VISUAL RECEPTORS OF CAROTENOID-DEPLETED FLIES: A VITAMIN A DEFICIENCY IN AN INVERTEBRATE.

9. The sensitivity of housefly photoreceptors in the mid-ultraviolet and the limits of the visible spectrum.

10. Microspectrophotometric evidence for two photointerconvertible states of visual pigment in the barnacle lateral eye.

1. Photopigment and receptor properties in Drosophila compound eye and ocellar receptors.

2. Introduction to the symposium on bistable and sensitizing pigments in vision.

3. Interaction between eye pigment genes and tau-induced neurodegeneration in Drosophila melanogaster.

4. Isolation of Drosophila melanogaster mutants with a wavelength-specific alteration in their phototactic response.

5. Ionic and spectral mechanisms of the off response to light in hyperpolarizing photoreceptors of the clam, Lima scabra.

Review 6. Mechanisms of vitamin A metabolism and deficiency in the mammalian and fly visual system.