Results 131 to 140 of about 871 (169)

Genome and Transcriptome Sequencing of casper and roy Zebrafish Mutants Provides Novel Genetic Clues for Iridophore Loss

International Journal of Molecular Sciences, 2020
casper has been a widely used transparent mutant of zebrafish. It possesses a combined loss of reflective iridophores and light-absorbing melanophores, which gives rise to its almost transparent trunk throughout larval and adult stages.
Chao Bian, Wei Ge, Qiong Shi
exaly   +2 more sources

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Organellogenesis of the cephalopod iridophore: Cytomembranes in development

Journal of Ultrastructure Research, 1967
The 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 ...
John M Arnold, J M Arnold
exaly   +3 more sources

Developmental and comparative transcriptomic identification of iridophore contribution to white barring in clownfish

Pigment Cell and Melanoma Research, 2019
International audienceActinopterygian fishes harbor at least eight distinct pigment cell types, leading to a fascinating diversity of colors. Among this diversity, the cellular origin of the white color appears to be linked to several pigment cell types ...
David M Parichy, Natacha Roux, Anna Marcionetti   +2 more
exaly   +2 more sources

Reflecting on the iridophore transcriptome, and more

Pigment Cell & Melanoma Research, 2013
Mammals 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
openaire   +1 more source

Transformation of amphibian iridophores into melanophores in clonal culture

Developmental Biology, 1976
Abstract Iridophores isolated from bullfrog tadpoles were successfully cloned. In primary culture, the iridophores showed contraction of cell bodies by the addition of alkali-treated ACTH. The disappearance of reflecting platelets occurred in proliferating iridophores and many small black melanin granules were synthesized in the cells.
H, Ide, T, Hama
openaire   +2 more sources

Iridophores in the Mantle of Giant Clams

Australian Journal of Zoology, 1992
Iridophores 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
openaire   +1 more source

Physiological color change in squid iridophores

Cell and Tissue Research, 1990
Evidence is presented that changes in the optical properties of active iridophores in the dermis of the squid Lolliguncula brevis are the result of changes in the ultrastructure of these cells. At least two mechanisms may be involved when active cells change from non-iridescent to iridescent or change iridescent color.
K M, Cooper, R T, Hanlon, B U, Budelmann
openaire   +4 more sources

Iridophore development in wild-type and periodic albinoXenopus larvae

Experientia, 1981
Light 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
exaly   +3 more sources

Motile iridophores of a freshwater goby, Odontobutis obscura

Cell and Tissue Research, 1986
Reflecting 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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Stimulation of Cultured Iridophores by Amphibian Ventral Conditioned Medium

Pigment Cell Research, 1990
That the ventral integument of adult frogs (Rana pipiens) contains factor(s) that stimulate iridophore expression (adhesion, morphologic appearance, proliferation) was demonstrated on iridophores derived from tadpoles of R. pipiens and Pachymedusa dacnicolor, and maintained in primary culture in a growth medium based upon Leibovitz's L‐15. Experimental
J T, Bagnara, T, Fukuzawa
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