Results 121 to 130 of about 502 (147)
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Journal of Ultrastructure Research, 1971
Structural changes in pterinosomes found in xanthophores were studied electron microscopically using 5, 6, 7, 8, and 9 mm-long stages of larvae of Oryzias latipes. Herein designated types G-1 to G-5 pterinosomes appeared most abundantly, corresponding to the respective stage in the above sequence. They were round or ellipsoidal.
Tadao Hama
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Structural changes in pterinosomes found in xanthophores were studied electron microscopically using 5, 6, 7, 8, and 9 mm-long stages of larvae of Oryzias latipes. Herein designated types G-1 to G-5 pterinosomes appeared most abundantly, corresponding to the respective stage in the above sequence. They were round or ellipsoidal.
Tadao Hama
exaly +3 more sources
Transformation of amphibian xanthophores into melanophores in clonal culture
Journal of Experimental Zoology, 1978AbstractXanthophores isolated from bullfrog tadpoles were successfully cloned. The rapid disappearance of the yellow pigment‐containing organelles (pterinosomes) occurred in proliferating xanthophores and many black granules were newly synthesized in the cells. The granules were electronmicroscopically identified as melanin granules.
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Carotenoids, instead of pteridines, determine color of xanthophores and erythrophores in tilapia
Journal of HeredityAbstract There has been controversy over whether the chromogenic substances of xanthophores and erythrophores are pteridines or carotenoids in fish. In this study, we first extracted and quantified carotenoids and pteridines from erythrophores and xanthophores in tilapia, respectively.
Guangyuan Liang +9 more
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The Non-Identity of the Neurohumors for the Melanophores and the Xanthophores of Fundulus
The American Naturalist, 1936IT has been shown that the reactions of the xanthophores (yellow pigment cells) in Fundulus heteroclitus are independent of the responses of the melanophoresblack pigment cells (Connolly, 1925; Fries, 1931). For example, both the xanthophores and the melanlophores are contracted in a fish which has been kept for some time in an illuminated white vessel,
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ACTH-induced internalization of plasma membrane in xanthophores of the goldfish, Carassiusauratus L
Biochemical and Biophysical Research Communications, 1979Abstract The ACTH-induced pigment dispersion in primary cultures and in suspensions of xanthophores of the goldfish, Carassius auratus L., has been shown to include the formation of rosette-like membranous structures and plasma membrane invaginations (pits).
S J, Lo, T T, Tchen, J D, Taylor
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Wilhelm Roux's Archives of Developmental Biology, 1984
The barred pigment pattern (Lehman 1957) of the axolotl larva is best observed from stage 41 onwards, where it already consists of alternating transverse bands of melanophores and xanthophores along the dorsal side of the trunk. The present study investigateswhen the two populations of neural crest derived chromatophores, melanophores and xanthophores ...
Hans Henning, Epperlein, Jan, Löfberg
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The barred pigment pattern (Lehman 1957) of the axolotl larva is best observed from stage 41 onwards, where it already consists of alternating transverse bands of melanophores and xanthophores along the dorsal side of the trunk. The present study investigateswhen the two populations of neural crest derived chromatophores, melanophores and xanthophores ...
Hans Henning, Epperlein, Jan, Löfberg
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Cell Motility, 1988
AbstractIn goldfish xanthophores, the formation of pigment aggregate requires: (1) that a pigment organelle (carotenoid droplet) protein p57 be in the unphosphorylated state; (2) that self‐association of pigment organelles occur in a microtubule‐independent manner; and (3) that pigment organelles via p57 associate with microtubules.
T T, Tchen +8 more
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AbstractIn goldfish xanthophores, the formation of pigment aggregate requires: (1) that a pigment organelle (carotenoid droplet) protein p57 be in the unphosphorylated state; (2) that self‐association of pigment organelles occur in a microtubule‐independent manner; and (3) that pigment organelles via p57 associate with microtubules.
T T, Tchen +8 more
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Induction of xanthophores from non-pigmented dermal cells of xanthic goldfish in vitro
Cell Differentiation, 1987To identify precursor cells of xanthophores (xanthoblasts), non-pigmented cells without any phenotypic traits as pigment cells were isolated from the dermal tissue of xanthic goldfish with an adult color pattern and cultured in a medium containing 1 mM db-cAMP or 0.25 U/ml ACTH and 10% carp serum.
Y, Wakamatsu, M, Obika, K, Ozato
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The role of xanthophores in the stripe pattern formation of Zebrafish, Danio rerio
2017Animals have evolved a fascinating diversity in their color patterns, which serves as an essential component of their survival strategies. Color pattern formation in zebrafish (Danio rerio) is a great model system to study general pattern formation involving different cell types.
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Wilhelm Roux's Archives of Developmental Biology, 1982
The subepidermal distribution of xanthophores and melanophores is investigated in embryos ofTriturus alpestris with a uniform (stage 28+) and a banded melanophore pattern (stage 35/36). In ultrathin head and trunk sections from stage 35/36 embryos which externally show longitudinal dorsal and lateral melanophore bands in the trunk and less compact ...
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The subepidermal distribution of xanthophores and melanophores is investigated in embryos ofTriturus alpestris with a uniform (stage 28+) and a banded melanophore pattern (stage 35/36). In ultrathin head and trunk sections from stage 35/36 embryos which externally show longitudinal dorsal and lateral melanophore bands in the trunk and less compact ...
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