スギモト マサズミ   Sugimoto Masazumi
  杉本 雅純
   所属   東邦大学  理学部 生物分子科学科
   職種   教授
論文種別 原著
言語種別 英語
査読の有無 査読なし
表題 Integumental reddish-violet coloration owing to novel dichromatic chromatophores in the teleost fish, Pseudochromis diadema.
掲載誌名 正式名:Pigment Cell & Melanoma Research
略  称:Pigment Cell Melanoma Res
ISSNコード:17551471/1755148X
巻・号・頁 24(4),614-7頁
著者・共著者 Goda M, Ohata M, Ikoma H, Fujiyoshi Y, Sugimoto M, Fujii R.
発行年月 2011/04
概要 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 observed no typical red chromatosomes, i.e., erythrosomes, in the cytoplasm. High-performance thin-layer chromatography (HPTLC) analysis of the pigment eluted from the erythro-iridophores indicated that carotenoid is the main pigment generating the reddish color. Furthermore, when the irrigating medium was a K(+) -rich saline solution, the color reflected from the erythro-iridophores changed from dark violet to sky blue, but the red coloration remained. The motile activities of the erythro-iridophores may participate in the changes in the reddish-violet shades of the pseudochromis fish.
DOI 10.1111/j.1755-148X.2011.00861.x
文献番号 21501419/PubMedID