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Action of endothelins and related substances on the chromatophores of poikilothermal vertebrates

Research Project

Project/Area Number 06640888
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 動物生理・代謝
Research InstitutionToho University, Faculty of Science

Principal Investigator

FUJII Ryozo  Toho University, Faculty of Science, Professor, 理学部, 教授 (10045354)

Co-Investigator(Kenkyū-buntansha) SUGIMOTO Masazumi  Toho University, Faculty of Science, Lecturer, 理学部, 講師 (20235899)
OSHIMA Noriko  Toho University, Faculty of Science, Professor, 理学部, 教授 (70057735)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1995: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1994: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsEndothelin / Chromatophore / Melanophore / Teleost / Hormone / Skin coloration / Poikilothermal vertebrate / Fish / 赤色素胞 / 白色素胞 / 受容体 / 体色変化
Research Abstract

Working on the medaka, Oryzias latipes, the changes in the responsiveness of melanophores to electrical nervous stimulation after prolonged background adaptation were investigated. It was found that the excitability of the chromatic nerves and the density of innervation were largely affected during the background adaptation (Sugimoto et al., 1994). Then, the pharmacological profiles of the muscarinic cholinoceptors that mediate aggregation of pigment in the melanophores were stidied on two species of catfish. It was indicated that thses receptors resembled those of mammalian muscarinic cholinpceptors of the M_3 type (Hayashi and Fuji, 1994). Morphological observations about the skin of the common surgeonfish, paracanthurus hepatus, showed that the blue coloration was due to the presence of iridophores resembling those of blue damselfish, but the iroidophores existed in double starta (Goda et al., 1994). Novel blue chromatophores were found in two species of callionymid fish. We named them the "cyanophores", and the blue organelles contained the "cyanosomes" (Goda and Fujii, 1995). Pharmacological studies on the endothelin receptors that mediate aggregation of pigment in fish melanophores were intensely studied. The conclusion was that they resembled those of the mammalian ET_B type (Hayashi and Fujii, in press). Including those of endothelins and of related substances, the effects of vaious factors influencing motile activities of fish chromatophores were widely discussed in a review article by us (Fujii and Oshima, 1994).

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] Sugimoto,Masazumi: "Changes in the responsiveness of melanophores to electrical nervous stimulation after prolonged background adaptation in the medaka,Oryzias latipes." Zoological Science. 11. 39-44 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hayashi,Hiroshi: "Pharmacological profiles of the subtypes of muscarinic cholinoceptors that mediate aggregation of pigment in the melanophores of two species of catfish." Pigment Cell Research. 175-183 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Goda,Makoto: "The blue coloration of the common surgeonfish,Paracanthurus hepatus---I. Morphological features of chromatophores." Zoological Science. 11. 527-535 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Goda,Makoto: "Blue chromatophores in two species of callionymid fish." Zoological Science. 12. 811-813 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hayashi,Hiroshi: "The endothelin receptors that mediate aggregation of pigment in fish melanophores." Comparative Biochemistry and Physiology. (印刷中). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 藤井良三: "魚類の体色と色素胞" 遺伝. 48. 69-75 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujii,Ryozo: "Chapter 1. Factors influencing motile activities of fish chromatophores. pp.1-54 Advances in Comparative and Environmental Physiology (Ed.by Gilles,R.) ,Vol.20" Springer-Verlag,Berlin, 301 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Sugimoto, M.: "Changes in the responsiveness of melano-phores. to electrical nervous stimulation after prolonged background adaptation in the medaka, Oryzias latipes." Zool. Sci.11. 39-44 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hayashi, H.: "Pharmacological profiles of the subtypes of muscarinic cholinoceptors that mediate aggregation of pigment in the melanophores of two species of catfish." Pigment Cell Res.7. 175-183 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Goda, M.: "The blue coloration of the common surgeonfish, Paracanthurus hepatus・・・I.Morphological features of chromatophores." Zool. Sci.11. 527-535 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Goda, M.: "Blue chromatophores in two species of callionymid fish." Zool. Sci.11. 811-813 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hayashi, H.: "The endothelin receptors that mediate aggre-gation of pigment in fish melanophores." Comp. Biochem. Physiol.(in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujii, R.: "Factors influencing motile activities of fish chromatophores." Adv. Comp. Environ. Physiol. (Ed. by Gilles, R.). Vol. 20. 1-54 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujii, R.: "Body color and chromatophores in fish." Iden (The heredity). 48. 69-75 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Goda, Makoto: "Blue chromatophores in two species of callionymid fish." Zoological Science. 12. 811-813 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Hayashi, Hiroshi: "The endothelin receptors that mediate aggregation of pigment in fish melanophores." Comparative Biochemistry and Physiology. (印刷中). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Fujii,R.: "Endothelin-1 causes aggregation of pigment in teleostean melanophores." Zoological Science. 10. 763-772 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] Sugimoto,M.: "Changes in the responsiveness of melanophores to electrical nervous stimulation after prolonged background adaptation in the medaka." Zoological Science. 11. 39-44 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Hayashi,H.: "Pharmacological profiles of the subtypes of muscarinic cholinoceptors that madiate aggregation of pigment in the melanophores of two species of catfish." Pigment Cell Research. 7. 175-183 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Goda,M.: "The blue colration of the common surgeonfish. Paracanthurus hepatus…I.Morphological features of chromatophores." Zoological Science. 11. 527-535 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Fujii,R.: "Factors influencing motile activities of fish chromatophores." Adv.Comp.Environ.Physiol.20. 1-54 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 藤井良三: "魚類の体色と色素胞." 遺伝. 48. 69-75 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 藤井良三: "改訂生物学" 八千代出版,東京, 328 (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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