Results 261 to 270 of about 85,236 (300)
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Visual Pigment of the Coelacanth
Nature, 1972DURING the Franco–British–American expedition to the Comoro Islands (January 1–March 28, 1972), two coelacanths were taken by native fishermen. This report of the visual pigment is based on measurements made on a quarter of one retina of the second fish, an immature female, 0.86 m long1.
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Photochemical studies of visual pigments
Pure and Applied Chemistry, 1977The photochemistry of retinal, synthetic model retinals and the rhodopsins formed from these retinals has been studied with the purpose of securing information which allows a clearer picture to be obtained of the intermediates and steric requirements of the opsin receptor site.
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1978
Publisher Summary The work of the past decade has begun to outline the particular features of insect visual pigments. Although, they are different in certain respects, insect visual pigments are similar in their basic features to the photopigments of vertebrates, and studies of insect visual pigments now are necessarily comparative.
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Publisher Summary The work of the past decade has begun to outline the particular features of insect visual pigments. Although, they are different in certain respects, insect visual pigments are similar in their basic features to the photopigments of vertebrates, and studies of insect visual pigments now are necessarily comparative.
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Visual Pigments and Photoreceptors
2014This chapter focuses on visual pigments and photoreceptors. In living things, photoreception inevitably begins with a photochemical event—a molecule intercepts a photon of light and is somehow changed. Various molecules, generally known as photopigments, perform this function in animals and plants.
Thomas W. Cronin +3 more
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Visual Pigments of Invertebrates
1984An understanding of the photopigments is indispensable as, the primary process in photoreception starts with the absorption of light quanta by the photopigment molecules, which in turn triggers the long train of the visual process: molecular transformation, production of transmitter, ionic movements, and often substantial structural changes within the ...
D. G. Stavenga, J. Schwemer
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1971
Publisher Summary The lens or cornea of many fishes contains pigments that filter out violet or ultraviolet radiation, probably improving visual acuity. Little is known about the aqueous or vitreous humors; among different species, the vitreous ranges in consistency from a liquid to a firm gel.
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Publisher Summary The lens or cornea of many fishes contains pigments that filter out violet or ultraviolet radiation, probably improving visual acuity. Little is known about the aqueous or vitreous humors; among different species, the vitreous ranges in consistency from a liquid to a firm gel.
openaire +1 more source