Heat-induced escape behavior in zebrafish larvae

DOI
  • Sakaoka Atsushi
    Div. of Biological Information, Dept. of Intelligence, Science and Technology, Grad. Sch. of Informatics, Kyoto Univ., Kyoto, Japan
  • Yamashita Tomohiro
    Div. of Biological Information, Dept. of Intelligence, Science and Technology, Grad. Sch. of Informatics, Kyoto Univ., Kyoto, Japan
  • Goto Akihiro
    Div. of Biological Information, Dept. of Intelligence, Science and Technology, Grad. Sch. of Informatics, Kyoto Univ., Kyoto, Japan
  • Hosokawa Hiroshi
    Div. of Biological Information, Dept. of Intelligence, Science and Technology, Grad. Sch. of Informatics, Kyoto Univ., Kyoto, Japan
  • Matsumura Kiyoshi
    Faculty of Information Science and Technology, Osaka Inst. of Technology, Hirakata, Japan
  • Kobayashi Shigeo
    Div. of Biological Information, Dept. of Intelligence, Science and Technology, Grad. Sch. of Informatics, Kyoto Univ., Kyoto, Japan

Bibliographic Information

Other Title
  • 熱刺激が誘発するゼブラフィッシュ稚魚の逃避行動

Description

Behavioral thermoregulation is critical for animals to survive in various ambient temperatures. However, cellular and molecular mechanisms of behavioral thermoregulation are not known. Zebrafish is a small tropical fish. Because body of zebrafish larvae is translucent, neurons of the brain are visible. If larvae exert behavioral thermoregulation, we can investigate cellular and molecular mechanisms of behavioral thermoregulation. In this study, we examined whether 3 dpf (day post-fertilization) larvae perform behavioral thermoregulation. When larvae, reared at 28 °C, were released to a pool of high temperature (32.5–40 °C), they exerted escape behavior. To investigate the involvement of brain in this behavior, decerebration was performed. Decerabrated larvae were alive and provoked tail-beating behavior in response to NMDA, but they did not exert heat-induced escape behavior. To identify a receptor mediating heat-induced escape behavior, we hypothesized that TRP (Transient Receptor Potential) V1 and TRPV4 are candidate receptors. Both TRPV1 and TRPV4 were detected by RT-PCR from 3 dpf larvae. We conclude that zebrafish larvae exert heat-induced escape behavior. [J Physiol Sci. 2007;57 Suppl:S180]

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Keywords

Details 詳細情報について

  • CRID
    1390282680704506624
  • NII Article ID
    130005449063
  • DOI
    10.14849/psjproc.2007.0_180_4
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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