• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1992 Fiscal Year Final Research Report Summary

Mechanisms of peptidergic regulation of muscle movements in molluscs.

Research Project

Project/Area Number 03454025
Research Category

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

Allocation TypeSingle-year Grants
Research Field 動物発生・生理学
Research InstitutionHIROSHIMA UNIVERSITY

Principal Investigator

KOBAYASHI Makoto  Hiroshima University Fac. Integrated Arts & Sci. Professor, 総合科学部, 教授 (50033981)

Co-Investigator(Kenkyū-buntansha) MUNEOKA Yojiro  Hiroshima University Fac. Integrated Arts & Sci. Professor, 総合科学部, 教授 (40031330)
Project Period (FY) 1991 – 1992
KeywordsMollusc / African giant snail / Neuropeptide / Heart beat / Regulation of muscle contraction / Identified neuron / Immunohistochemistry / D-amino acid
Research Abstract

1. More than twenty kinds of excitatory or inhibitory neuropeptides have been isolated from the central nervous system, heart and buccal muscles of the African giant snail Achatina fulica. Among them, the function and distribution of FMRFamide, ACEP-1, achatin-I and fulicin were investigated.
2. Although FMRFamide, ACEP-1 and achain-I were isolated from the atria of this animal, they did not show any significant direct effects on the atrium but did show strong excitatory effects on the ventricle.Immunohistochemical investigation has revealed that FMRFamide- and ACEP-1-like substances are richly distributed in many neurons in the cerebral and subesophageal ganglia, neuropile, intestinal nerve going to the heart, and atrium, but very scarcely in the ventricle. It is probable that these peptides synthesized in the ganglia are transported to the nerve fibers in the atrium and then released to the ventricle where they exhibit their actions.
3. In relation to the buccal muscle movements, two pairs of cerebral ganglionic neurons and ten pairs of buccal ganglionic neurons have been identified and their morphology and function have been investigated. Among them two systems are characteristic. One; the contraction of the radula retractor elicited by the firing of cholinergic motoneuron B4 is modulated excitatorily by serotonergic neuron v-CDN. The other; a cholinergic motoneuron B10 contains neuropeptide ACEP-1, and the contraction of the radula protractor is modulated by ACEP-1 possibly acting presynaptically to the nerve terminals to increase the release of ACh.
4. Structure-activity relationships of fulicin were studied by using the penis retractor muscle as a bioassay system, and the distribution and localization of this peptide were investigated immunohistochemically. It was concluded that fulicin is involved physiologically in the regulation of contraction of the penis retractor muscle.

  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Yoshida,M.: "Neural control of the buccal muscle movement in the African giant snail Achatina fulica." J.exp.Biol.155. 415-433 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Fujimoto,K.: "Purification of achatin-I from the atria of the artria of the African giant snail,Achatina fulica,and its possible function." Biochem.Biophysic.Res.Commun.177. 847-853 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ohta,N.: "Fulicin,a novel neuropeptide containing a D-amino acid residue isolated from the ganglia of Achatina fulica." Biochem.Biophysic.Res.Commun.178. 486-493 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kobayashi,M.: "Structure and action of novel neuropeptides isolated from a pulmonate,the African giant snail." In:Molluscan Neurobiology.eds.by K.S.Kits,H.H.Boer and J.Joosse,North-Holland Publishing Company,Amsterdam. 260-264 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kobayashi,M.: "Structure and function of neuropeptides containing a D-amino acid residue isolated from the African giant snail Achatina fulica." In:Peptide Chemistry 1991.ed.by A.Suzuki,Protein Research Foundation,Osaka. 321-326 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshida,M.: "Identified neurones involved in the control of rhythmic buccal motor activity in the snail Achatina fulica." J.exp.Biol.164. 117-133 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kobayashi,M.: "Involvement of neuropeptides in the regulation of heart beat of the African giant snail Achatina fulica Ferussac." Comparative Physiology. 6. 211-219 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Fujisawa,Y.: "The FMRFamide-related decapeptide of Mytilus contains a D-amino acid residue." Comp.Biochem.Physiol.102C. 91-95 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kobayashi,M.: "Invertebrate neuropeptides:Their localization structure and function." Experientia. 48. 423-424 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Muneoka,Y.: "Comparative aspects of structure and action of molluscan neuropeptides." Experientia. 48. 448-456 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Harada,M.: "Structure and function of the molluscan myoactive tetradecapeptides." Zool.Sci.10. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kobayashi,M.: "Structure-activity relations and the distribution of a neuropeptide containing a D-amino acid residue ¨fulicin¨isolated from the african giant snail." Peptide Chemistry 1992. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshida,M. and Kobayashi,M.: "Neural control of the buccal muscle movement in the African giant snail Achatina fulica." J. exp. Biol. 155. 415-433 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Fujimoto,K.,Kubota,I.,Yasuda-Kamatani,Y.,Minakata,H.,Nomoto,K.,Yoshida,M.,Harada,A.,Muneoka,Y.and Kobayashi,M.: "Purification of achatin-I from the atria of the African giant snail, Achatin fulica, and its possible function." Biochem. Biophysic. Res. Commun. 177. 847-853 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ohta,N.,Kubota,I.,Takao,T.,Shimonishi,Y.,Yasuda-Kamatani,Y.,Minakata,H.,Nomoto,K.,Muneoka,Y.and Kobayashi,M.: "Fulicin, a novel neuropeptide containing a D-amino acid residue isolated from the ganglia of Achatina fulica." Biochem. Biophysic. Res. Commun. 178. 486-493 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kobayashi,M.,Fujimoto,K.and Kubota,I.: "Structure and action of novel neuropeptides isolated from a pulmonate of the African giant snail." Molluscan Neurobiology. Eds. by K.S. Kits, H.H. Boer and J. Joosse, North-Holland Publishing Company, Amsterdam. 260-264 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kobayashi,M.,Muneoka,Y.,Fujimoto,K.,Ohta,N.,Yoshida,M.,Kubota,I.,Nomoto,K.,Minakata,H.and Yasuda-Kamatani,Y.: "Structure and function of neuropeptides containing a D-amino acid residue isolated from the African giant snail Achatina fulica." Peptide Chemistry 1991. Ed. by A. Suzuki, Protein Research Foundation, Osaka. 321-326 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshida,M.and Kobayashi,M.: "Identified neurones involved in the control of rhythmic buccal motor activity in the snail Achatina fulica." J. exp. Biol. 164. 117-133 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Fujiwara-Sakata,M.and Kobayashi,M.: "Neuropeptides regulate the cardiac activity of a prosobranch mollusc Rapana thomasiana." Cell Tissue Res. 269. 241-247 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Fujisawa,Y.,Ikeda,T.,Nomoto,K.,Yasuda-Kamatani,Y.,Minakata,H.,Kenny,P.T.M.,Kubota,I.and Muneoka,Y.: "The FMRFamide-related decapeptide of Mytilus contains a D-amino acid residue." Comp. Biochem. Physiol. 102C. 91-95 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kobayashi,M.,Muneoka,Y.and Fujiwara-Sakata,M.: "Involvement of neuropeptides in the regulation of heart beat of the African giant snail Achatina fulica Ferussac." Comparative Physiology, Vol.6, Phylogenetic Models in Functional Coupling of the CNS and the Cardiovascular System. Eds. by R.B. Hill, K. Kuwasawa, B.R. McMahon and T. Kuramoto, Karger, Basel. 211-219 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kobayashi,M.and Suzuki,A.: "Invertebrate neuropeptides: Their localization, structure and function." Experientia. 48. 423-424 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Muneoka,Y.and Kobayashi,M.: "Comparative aspects of structure and action of molluscan neuropeptides." Experientia. 48. 448-456 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Harada,A.,Yoshida,M.,Minakata,H.,Nomoto,K.,Muneoka,Y.and Kobayashi,M.: "Structure and function of the molluscan myoactive tetradecapeptides." Zool. Sci. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kobayashi,M.,Fujita,K.,Fujiwara-Sakata,M.,Nomoto,K.,Minakata,H.and Terano,Y.: "Structure-activity relations and the distribution of a neuropeptide containing a D-amino acid residue "fulicin" isolated from the African giant snail." Peptide Chemistry 1992. Ed. by N. Yanaihara, Protein Research Foundation, Osaka. (1993)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1994-03-24  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi