visual pigment
The influence of ontogeny and light environment on the expression of visual pigment opsins in the retina of the black bream, Acanthopagrus butcheri
... of visual pigment opsins was investigated in the black bream, Acanthopagrus butcheri ...of visual pigments during ontogeny, comparisons were made between fishes reared in: (1) broad spectrum aquarium ...
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Polymorphism of the rod visual pigment between allopatric populations of the sand goby (Pomatoschistus minutus): a microspectrophotometric study
... the visual pigment be in some sense tuned to match the illumination spectrum in the ...the pigment can be achieved on an evolutionary time scale by amino acid substitutions in the protein part (the ...
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Regulation, spectral tuning and evolution of visual pigment genes in fish
... blue pigment promoter were able to direct expression to the blue cones and even a subset of cone bipolar ...blue pigment gene expression may be missing from the constructs (Chiu & Nathans, ...blue ...
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THE SHIFT IN VISUAL PIGMENT DOMINANCE IN THE RETINAE OF JUVENILE COHO SALMON (ONCORHYNCHUS KISUTCH): AN INDICATOR OF SMOLT STATUS
... the visual system were also ...optimal visual acuity for the oceanic portion of their ...the visual pigment conversion process may also be considered to be a feature of the parr–smolt ...
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Effects of exogenous thyroid hormones on visual pigment composition in coho salmon (Oncorhynchus kisutch)
... In salmonids, thyroid hormones (THs) are responsible for many of the structural, physiological and behavioral changes associated with smoltification, e.g. silvering, changes in body shape, increased saltwater tolerance, ...
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Two visual pigments in a single photoreceptor cell: identification and histological localization of three mRNAs encoding visual pigment opsins in the retina of the butterfly Papilio xuthus
... different visual pigments (Röhlich et ...of visual pigment is seen in the crab Hemigrapsus sanguineus, where seven of the eight photoreceptor cells in all ommatidia co- express two opsin mRNAs ...
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Ultraviolet vision in lacertid lizards: evidence from retinal structure, eye transmittance, SWS1 visual pigment genes and behaviour
... the visual system of vertebrates, which has been retained in many extant taxa, includes a cone photoreceptor whose visual pigment contains the short- wavelength-sensitive type 1 (SWS1) ...
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The ecology of visual pigment tuning in an Australian marsupial: the honey possum Tarsipes rostratus
... this visual task is likely to be the most difficult that is required for a honey possum, since mature and nearly mature inflorescences cannot be distinguished by shape, size or ...
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Genetic Basis of Spectral Tuning in the Violet-Sensitive Visual Pigment of African Clawed Frog, Xenopus laevis
... spectrophotometer. Visual pigments were bleached for 3 min using both a 366-nm UV light illuminator and a 60-W standard light bulb equipped with a Kodak Wratten ...
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Selective utilization of serum vitamin A for visual pigment synthesis
... In studying the biochemical basis for changes in the proportions of these two visual pigments in the goldfish neuroretina, the vitamin A composition vitamin A1/A2 ratio in the retinal pi[r] ...
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Rhabdom constriction enhances filtering by the red screening pigment in the eye of the Eastern Pale Clouded yellow butterfly, Colias erate (Pieridae)
... The spectral heterogeneity of ommatidia is very common in compound eyes (Ribi, 1978; Franceschini et al., 1981; Hardie, 1986; Arikawa and Stavenga, 1997; Briscoe, 2008). In the Small White butterfly, Pieris rapae ...
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Immunohistochemical localization of Papilio RBP in the eye of butterflies
... In native PAGE, we detected a fluorescing band in all tested butterfly species. According to Seki et al. (1987), butterflies use 3-hydroxyretinal as the visual pigment chromophore and most of them also ...
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Visual acuity of fly photoreceptors in natural conditions dependence on UV sensitizing pigment and light controlling pupil
... to visual acuity by the visual waveguides, the rhabdomeres of flies and the fused rhabdoms of bees and ...with visual pigment absorption ...
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STRUCTURAL BASIS FOR WAVELENGTH DISCRIMINATION IN THE BANKED RETINA OF THE FIREFLY SQUID WATASENIA SCINTILLANS
... Banked outer segments were not observed in LM longitudinal sections of the ventral retina, which were indistinguishable from sections through the dorsal retina (results not shown), except by the obvious difference in ...
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Meiotic instability of the R-r complex arising from displaced intragenic exchange and intrachromosomal rearrangement.
... Gene fusions that probably result from unequal exchange have been described for the human visual pigment gene family that result in red- green color blindness (NATHA[r] ...
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The effect of elevated hydrostatic pressure on the spectral absorption of deep-sea fish visual pigments
... 1994). Visual pigments exhibit several of these characteristics during activation by light, in resultant interactions with intracellular messengers, in termination of activity, and in their ...of visual ...
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The spectral transmission of ocular media suggests ultraviolet sensitivity is widespread among mammals
... UV visual pigment is also ...a visual pigment, although the photopic sensitivity of aphakic humans [6] and reindeer [34] to UV light is surprisingly ...a visual pigment is ...
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General Introduction
... Gene duplication MOLLON created a new long-wave visual pigment, and sensory pathways and maps appear to have been duplicated, both in the evolution of the mammalian sensory cortex KAAS a[r] ...
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The photoreceptors and visual pigments in the retina of a boid snake, the ball python (Python regius)
... retina. Visual resolution is a complex phenomenon that depends not only on photoreceptor packing density but also on such factors as optics, photoreceptor-to-ganglion cell convergence and photoreceptor sampling ...
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Electrophysiological assessment of spectral sensitivity in adult Nile tilapia Oreochromis niloticus: evidence for violet sensitivity
... We have begun to investigate whether the rare cone types found in cichlid retinas contribute to the spectral sensitivity of cichlids, using Nile tilapia Oreochromis niloticus (L.). This species represents an ancestral ...
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