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Generation mechanism and functional significance of rhythmic activity of flight muscles in the insect postembryonic development

Research Project

Project/Area Number 16570065
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Animal physiology/Animal behavior
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

ICHIKAWA Toshio  Kyushu University, Faculty of Sciences, Associate professor, 理学研究院, 助教授 (50136420)

Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2005: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2004: ¥2,700,000 (Direct Cost: ¥2,700,000)
KeywordsSilkmoth / neurosecretory cells / neuropeptides / flight muscles / muscle development / ultradian rhythm / colocalization / immunocytochemistry / 代謝酵素活性 / 収縮速度 / 筋弛緩
Research Abstract

Ultradian rhythmic firing activity of a population of neurosecretory cells (NSCs) producing FXPRLamide peptides in the subesophageal ganglion (SG) of the silkmoth Bombyx mori is closely coordinated with periodically occurring electrical activity of developing flight muscles (FMs) during metamorphosis. Similar rhythmic discharges of flight pattern-like motor activity were recorded from the developing asynchronous flight muscles of the fly (Drosophila melanogaster and Protophormia terraenovae), honeybee (Apis mellifera), wasp (Vespa analis), and beetle (Tenebrio obscurus) but not from the nymph of locust (Locusta migratoria). To examine the functional role of the electrical activity of FMs on the muscle development, the flight muscles of B.mori were unilaterally denervated at a middle pupal stage. The weight of denervated muscles was 10% smaller than that of contralateral innervated muscles, and the contraction kinetics of the denervated muscles was significantly slower than that of the innervated ones. The removal of the SG at a middle pupal stage had no effect on the metabolic enzyme activity of adult FMs. Immunocytochemical studies revealed that FXPRLamide-immunoreactive NSCs in B.mori colocalize FMRFamide and Bombyx myosuppressin (BMS) and those NSCs in the mealworm beetle T.obscurus colocalize FMRFamide and pigment dispersing factor (PDF). The NSCs in T.obscurus became active during the middle and late pupal periods, and they usually discharged clusters of action potentials at an interval of 30-90 min. The ultradian activity rhythm of the NSCs in the mealworm closely synchronized with periodically occurring rhythmic abdominal movements that caused extracardiac hemocoelic pulsations to facilitate hemolymph circulation and exchange of respiratory gases. The result suggests that the secretory products of the NSCs in the SG may activate and/or orchestrate various physiological mechanisms supporting morphogenesis during metamorphosis.

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (13 results)

All 2006 2005 2004

All Journal Article (12 results) Book (1 results)

  • [Journal Article] Coordination between the Electrical Activity of Developing Indirect Flight Muscles and the Firing Activity of a Population of Neurosecretory Cells in the Silkmoth Bombyx mori2006

    • Author(s)
      Satoshi Kamimoto, Rika Nohara, Toshio Ichikawa
    • Journal Title

      Zoological Science 23 (in press)

    • NAID

      110004804596

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mechanism of Neuronal Coordination of the Rhythmic Activities of Developing Flight Muscles and a Neurosecretory Cell Population in the Silkmoth Bombyx mori2006

    • Author(s)
      Satoshi Kamimoto, Toshio Ichikawa
    • Journal Title

      Zoological Science 23 (in press)

    • NAID

      110004804597

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Rhythmic Firing Activity of Median Neurosecretory Cells of the Subesophageal Ganglion and its Coordination with Periodically Occurring Abdominal Movements in the Mealworm Beetle Tenebrio obscurus2006

    • Author(s)
      Toshio Ichikawa, Keiko Inoue
    • Journal Title

      Zoological Science 23 (in press)

    • NAID

      110004804598

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Coordination between the Electrical Activity of Developing Indirect Flight Muscles and the Firing Activity of a Population of Neurosecretory Cells in the Silkmoth Bombyx mori2006

    • Author(s)
      Satoshi Kamimoto, Rika Nohara, Toshio Ichikawa
    • Journal Title

      Zoological Science 23(in press)

    • NAID

      110004804596

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mechanism of Neuronal Coordination of the Rhythmic Activities of Developing Flight Muscles and a Neurosecretory Cell Population in the Silkmoth Bombyx mori2006

    • Author(s)
      Kamimoto, S., Ichikawa T.
    • Journal Title

      Zoological Science 23(in press)

    • NAID

      110004804597

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Rhythmic Firing Activity of Median Neurosecretory Cells of the Subesophageal Ganglion and its Coordination with Periodically Occurring Abdominal Movements in the Mealworm Beetle Tenebrio obscurus2006

    • Author(s)
      Toshio Ichikawa, Keiko Inoue
    • Journal Title

      Zoological Science 23(in press)

    • NAID

      110004804598

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Coordination between the Electrical Activity of Developing Indirect Flight Muscles and the Firing Activity of a Population of Neurosecretory Cells in the Silkmoth Bombyx mori2006

    • Author(s)
      Satoshi Kamimoto, Rika Nohara, Toshio Ichikawa
    • Journal Title

      Zoological Science 23(In press)

    • NAID

      110004804596

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Mechanism of Neuronal Coordination of the Rhythmic Activities of Developing Flight Muscles and a Neurosecretory Cell Population in the Silkmoth Bombyx mori2006

    • Author(s)
      Satoshi Kamimoto, Toshio Ichikawa
    • Journal Title

      Zoological Science 23(In press)

    • NAID

      110004804597

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Rhythmic Firing Activity of Median Neurosecretory Cells of the Subesophageal Ganglion and its Coordination with Periodically Occurring Abdominal Movements in the Mealworm Beetle Tenebrio obscurus2006

    • Author(s)
      Toshio Ichikawa, Keiko Inoue
    • Journal Title

      Zoological Science 23(In press)

    • NAID

      110004804598

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Relationship between firing activity of bombyxin-producing neurosecretory cells and hemolymph bombyxin titer in the silkworm Bombyx mori2004

    • Author(s)
      Suenobu, A, Mizouch, A., Ichikawa, T.
    • Journal Title

      General and Comparative Endocrinology 137

      Pages: 219-226

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Relationship between firing activity of bombyxin-producing neurosecretory cells and hemolymph bombyxin titer in the silkworm Bombyx mori2004

    • Author(s)
      Suenobu, A., Mizouchi, A., Ichikawa, T.
    • Journal Title

      General and Comparative Endocrinology 137

      Pages: 219-226

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Relationship between firing activity of bpmbyxin-producing neurosecretory cells and hemolymph bombyxin titer in the silkworm Bombyx mori2004

    • Author(s)
      Suenobu, A., Mizouchi, A., Ichikawa, T.
    • Journal Title

      General and Comparative Endocrinology 137

      Pages: 219-226

    • Related Report
      2004 Annual Research Report
  • [Book] もうひとつの脳-微小脳の研究入門2005

    • Author(s)
      山口, 冨永, 桑沢共編
    • Total Pages
      280
    • Publisher
      倍風館
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary

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Published: 2004-04-01   Modified: 2016-04-21  

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