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Guanine formation in isolated iridophores from bullfrog tadpoles
Biochimica et Biophysica Acta (BBA) - General Subjects, 1972Iridophores were isolated from the peritoneum of bullfrog tadpoles by the method of trypsin digestion followed by Ficoll density gradient centrifugation. Guanine and hypoxanthine were found in the isolated iridophores. The incorporation of the label of [3H]guanosine into guanine was demonstrated using the isolated iridophores.
H, Ide, T, Hama
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Cephalopod coloration model I Squid chromatophores and iridophores
Journal of the Optical Society of America A, 2008We have developed a mathematical model of skin coloration in cephalopods, a class of aquatic animals. Cephalopods utilize neurological and physiological control of various skin components to achieve active camouflage and communication. Specific physical processes of this coloration are identified and modeled, utilizing available biological materials ...
Richard L, Sutherland +4 more
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Reflecting on the iridophore transcriptome, and more
Pigment Cell & Melanoma Research, 2013Mammals and poikilotherms share two melanized pigment cell types, the melanocytes derived from the neural crest and the retinal pigmented epithelium (RPE) derived from the brain (Bharti et al., 2006). Zebrafish, chicken and human studies have identified some of the main genes involved in melanin production in the RPE; however, the extent to which the ...
Alberto Lapedriza, Robert Kelsh
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Motile iridophores of a freshwater goby, Odontobutis obscura
Cell and Tissue Research, 1986Reflecting chromatophores in the dermis of the skin of a freshwater goby, Odontobutis obscura, are of an iridophore type. These chromatophores contain numerous reflecting platelets, which are similar to those in iridophores of other fish and amphibian species.
Tetsuro Iga, Akira Matsuno
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Iridophores in the Mantle of Giant Clams
Australian Journal of Zoology, 1992Iridophores in the mantle of the giant clams Tridacna gigas and T. crocea comprise an aggregation of cells (iridocytes) containing stacks of regularly arranged platelet, (iridosomal platelets) of uniform thickness (c. 70 nm). The platelets are separated by cytoplasm of roughly the same thickness permeated by a single flattened cisterna, the bounding ...
DJ Griffiths, H Winsor, T Luongvan
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Iridophore development in wild-type and periodic albinoXenopus larvae
Experientia, 1981Light microscopic studies of iridophore preparations from ap mutantXenopus larvae revealed abnormalities in the morphology and size distribution of reflecting platelets; purine synthesis is normal. A pleiotropic effect of the ap gene on melanoblasts and iridoblasts is proposed.
G J, MacMillan, A M, Gordon
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Zebrafish Leucocyte tyrosine kinase controls iridophore establishment, proliferation and survival
Pigment Cell & Melanoma Research, 2016Summary The zebrafish striped pattern results from the interplay among three pigment cell types; black melanophores, yellow xanthophores and silvery iridophores, making it a valuable model to study pattern formation in vivo.
Fadeev, A. +3 more
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Benign dermal iridophore aggregates in a crested gecko (Correlophus ciliatus)
Journal of Exotic Pet Medicine, 2020Abstract A 1-year-old, female intact crested gecko was evaluated because of skin discoloration on her ventrum. Full-thickness biopsies were taken and evaluated histologically. Multifocally and regularly, there were collections of birefringent, granular material, localized primarily to the most superficial dermis subjacent to the overlying epithelium,
Tess Rooney +2 more
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Organellogenesis of the cephalopod iridophore: Cytomembranes in development
Journal of Ultrastructure Research, 1967The iridophore of the cephalopod iris and skin develop by the concurrent fusion of Golgi-derived vesicles, to form new cell surface, and by the condensation of ribosome-sized granules, to form dense membrane-bound iridosomal platelets. Microtubules parallel the platelets in their formation and appear to be important in either alignment or transport of ...
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Leucophores and iridophores of Fundulus heteroclitus: Biophysical and ultrastructural properties
Journal of Morphology, 1979AbstractClassical light microscopic studies on pigmentation of Fundulus heteroclitus (killifish) indicated that there are three groups of light reflecting cells; one group on the surface of scales reflects white light, while two other deeper groups (the melaniridophores and the stratum argenteum) are iridescent. The results presented here show that: (1)
David G, Menter +3 more
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