Integumental reddish‐violet coloration owing to novel dichromatic chromatophores in the teleost fish, Pseudochromis diadema

  title={Integumental reddish‐violet coloration owing to novel dichromatic chromatophores in the teleost fish, Pseudochromis diadema},
  author={Makoto Goda and Mihoko Ohata and Hayato Ikoma and Yoshinori Fujiyoshi and Masazumi Sugimoto and Ryozo Fujii},
  journal={Pigment Cell \& Melanoma Research},
In the reddish‐violet parts of the skin of the diadema pseudochromis Pseudochromis diadema, we found novel dichromatic chromatophores with a reddish pigment and reflecting platelets. We named these novel cells ‘erythro‐iridophores’. In standard physiological solution, erythro‐iridophores displayed two hues, red and dark violet when viewed with an optical microscope under ordinary transmission light and epi‐illumination optics, respectively. Under transmission electron microscopy, however, we… 

Novel Dichromatic Chromatophores in the Integument of the Mandarin Fish Synchiropus splendidus

Novel light-absorbing dichromatic chromatophores are found in limited regions of the integument of the mandarin fish and pharmacological treatment with norepinephrine induced aggregation of both the erythrosomes and cyanosomes of the novel dichromatics possess motile activity, suggesting that they contribute to the role of their color changes observed in response to various environmental signals.

Rapid integumental color changes due to novel iridophores in the chameleon sand tilefish Hoplolatilus chlupatyi

  • M. Goda
  • Biology
    Pigment cell & melanoma research
  • 2017
It is shown that the rapid color change from blue to red of the chameleon sand tilefish Hoplolatilus chlupatyi is mediated by adrenergic stimulation of a novel type of iridophore in which reflecting platelets are concentrated selectively in the periphery of the cell, near the plasma membrane.

Multiple Pigment Cell Types Contribute to the Black, Blue, and Orange Ornaments of Male Guppies (Poecilia reticulata)

This work identified three types of pigment cells and found that at least two of these contribute to each color trait and the presence of iridophores in each of the investigated color traits is consistent with a key role for this pigment cell type in guppy color pattern formation.

Physiological and Morphological Color Changes in Teleosts and in Reptiles

This chapter explores the various studies on the morphological and/or physiological color changes in poikilothermic vertebrates, fish, and reptiles.

Development and genetics of red coloration in the zebrafish relative Danio albolineatus

It is shown that erythrophores in the fin of D. albolineatus share a common progenitor with xanthophores and maintain plasticity in cell fate even after differentiation, and reverse genetics is used to pinpoint genes required for the differentiation and maintenance of these cells.

Characterization and functional analysis of pax3 in body color transition of polychromatic Midas cichlids (Amphilophus citrinellus).

  • Guoqiang WuX. Mou Chao Liu
  • Biology
    Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology
  • 2022

Fish Chromatophores--From Molecular Motors to Animal Behavior.

A Comparative Transcriptome Analysis between Wild and Albino Yellow Catfish (Pelteobagrus fulvidraco)

It is found that alterations of expression pattern may be more common than non-synonymous mutations in the wild types of P. fulvidraco, and will be an invaluable resource for subsequent comparative genomics and evolutionary analyses of this economically important fish.



The Blue Coloration of the Common Surgeonfish, Paracanthurus hepatus—II. Color Revelation and Color Changes

Photographic and spectral reflectance studies in vivo, as well as photomicrographic, photo-electric, and spectrometric examinations of the state of chromatophores in skin specimens in vitro, indicate that both melanophores and iridophores are motile.

Cytophysiology of fish chromatophores

  • R. Fujii
  • Biology, Environmental Science
  • 1993

Blue Chromatophores in Two Species of Callionymid Fish

Dendritic chromatophores that contained blue pigmentary organelles were found in the bluish parts of the skin of two callionymid species, the mandarin fish and the psychedelic fish, and may participate in the changes in shades of blue of these gorgeous fish.

Transformation of amphibian xanthophores into melanophores in clonal culture

These chromatophores showed melanin dispersion by the addition of the alkali-treated ACTH and suggest that xanthophores transform into melanophores in vitro.

Transformation of amphibian iridophores into melanophores in clonal culture.

Mechanism of light reflection in blue damselfish motile iridophore

Chromatophores and color change

Presence of pteridine pigments in isolated iridophores.