Results 1 to 10 of about 14,467 (226)
Evolution of the shut-off steps of vertebrate phototransduction [PDF]
Open Biology, 2018 Different isoforms of the genes involved in phototransduction are expressed in vertebrate rod and cone photoreceptors, providing a unique example of parallel evolution via gene duplication.
Trevor D Lamb +2 more
exaly +5 more sources
eLife, 2023 Melanopsin signaling within intrinsically photosensitive retinal ganglion cell (ipRGC) subtypes impacts a broad range of behaviors from circadian photoentrainment to conscious visual perception.
Ely Contreras +4 more
doaj +2 more sources
Modeling Circadian Phototransduction: Quantitative Predictions of Psychophysical Data
Frontiers in Neuroscience, 2021 A revised computational model of circadian phototransduction is presented. The first step was to characterize the spectral sensitivity of the retinal circuit using suppression of the synthesis of melatonin by the pineal gland at night as the outcome ...
Mark S Rea +2 more
exaly +3 more sources
Evolution of opsins and phototransduction [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2009 Opsins are the universal photoreceptor molecules of all visual systems in the animal kingdom. They can change their conformation from a resting state to a signalling state upon light absorption, which activates the G protein, thereby resulting in a signalling cascade that produces physiological responses.
Yoshinori, Shichida, Take, Matsuyama
exaly +3 more sources
Loss of BAP31 Is Detrimentally Aging Photoreceptors Through ER Stress-Mediated Retinal Degeneration [PDF]
CellsRetinal degeneration (RD) is an intractable ophthalmic disorder with no effective treatments, and its pathogenesis is complex, involving multiple genes. Endoplasmic reticulum (ER) stress and neuronal apoptosis are key factors that drive neurodegeneration
Fei Gao +6 more
doaj +2 more sources
Evolution of the calcium feedback steps of vertebrate phototransduction [PDF]
Open Biology, 2018 We examined the genes encoding the proteins that mediate the Ca-feedback regulatory system in vertebrate rod and cone phototransduction. These proteins comprise four families: recoverin/visinin, the guanylyl cyclase activating proteins (GCAPs), the ...
Trevor D Lamb, David M Hunt
exaly +2 more sources
The Insect Eye: From Foundational Biology to Modern Applications in Pest Management [PDF]
InsectsThe ability of an animal to perceive its visual environment underpins many behaviors essential to survival, including navigation, foraging, predator avoidance, and recognition of conspecific individuals, making vision a critical element of both ...
Marianna Varone +8 more
doaj +2 more sources
Transcriptional identification of genes light-interacting in the extraretinal photoreceptors of the crayfish Procambarus clarkii [PDF]
ZooKeys, 2021 Crayfish serve as a model for studying the effect of environmental lighting on locomotor activity and neuroendocrine functions. The effects of light on this organism are mediated differentially by retinal and extraretinal photoreceptors located in the ...
Gabina Calderón-Rosete +5 more
doaj +3 more sources
Insects, 2023 Plutella xylostella is a typical phototactic pest. LW-opsin contributes to the phototaxis of P. xylostella, but the expression changes of other genes in the phototransduction pathway caused by the mutation of LW-opsin remain unknown.
Shao-Ping Chen +4 more
doaj +1 more source
Modeling Circadian Phototransduction: Retinal Neurophysiology and Neuroanatomy
Frontiers in Neuroscience, 2021 The retina is a complex, but well-organized neural structure that converts optical radiation into neural signals that convey photic information to a wide variety of brain structures.
Mark S. Rea +5 more
doaj +1 more source