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Noun1.photopigment - a special pigment found in the rods and cones of the retina
pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
iodopsin - a violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision
retinal purple, rhodopsin, visual purple - a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light
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References in periodicals archive ?
Color vision in vertebrates is usually achieved through the interaction of various photopigments in the cone cells found in the retina.
Nathans, "Opsin genes, cone photopigments, color vision, and color blindness," in Color Vision: From Genes to Perception, K.
It requires at least three photopigments of well separated spectral classes.
Apart from nourishing the region, the choroidal circulatory system serves as a heat sink which removes generated metabolic heat due to light photons strike on the photopigments and the melanin of the RPE [43].
The transitional zone between these two retinal areas is populated by coexpressing cones that express both S-cone and M-cone photopigments [35].
In addition to a MBM, support for a chemical compass involving a class of specialized photopigments forming radical-pair intermediates sensitive to the axis of the magnetic field, comes from theoretical and empirical studies, and is thought to be mediated by the visual transduction pathway (Ritz et al.
Spectral sensitivity curves recorded from small VE photoreceptors show 2 peaks, one at 360 nm and a second at 520 nm, indicating that both opsins form functional photopigments and that the small photoreceptors are sensitive to both UV and visible light and therefore are classified as UV-VIS cells.
Thus, measureable properties of cells such as cell population, DNA, chemical properties, energy, and photopigments will be changing according to cell growth rate.
The cell bodies of rod (purple) and cone (red) photoreceptors are in the outer nuclear layer (ONL) and the photoreceptor outer segments (OS) contain the photopigments that absorb light.
The photopigments responsible for converting light into temporal information are assembled in a family of nonimage forming opsins named melanopsins, which were firstly discovered in Xenopus laevis melanophores [21], with subsequent description of orthologues in the retina of all vertebrate classes [22-25], and extraocular tissues of some species [2628].
Protanopia and deuteranopia result when long wavelength (L) photopigments (red) and middle wavelength (M) photopigments (green) are missing, respectively.