Phase Shifts of the Circadian Locomotor Rhythm Induced by Pigment-Dispersing Factor in the Cricket Gryllus bimaculatus(Physiology)
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概要
- 論文の詳細を見る
Pigment-dispersing factors (PDFs) are octadeca-peptides widely distributed in insect optic lobes and brain. In this study, we have purified PDF and determined its amino acid sequence in the cricket Gryllus bimaculatus. Its primary structure was NSEIINSLLGLPKVLNDA-NH_2, homologous to other PDH family members so far reported. When injected into the optic lobe of experimentally blinded adult male crickets, Gryllus-PDF induced phase shifts in their activity rhythms in a phase dependent and dose dependent manner. The resulted phase response curve (PRC) showed delays during the late subjective night to early subjective day and advances during the mid subjective day to mid subjective night. The PRC was different in shape from those for light, serotonin and temperature. These results suggest that PDF plays a role in phase regulation of the circadian clock through a separate pathway from those of other known phase regulating agents.
- 社団法人日本動物学会の論文
- 2003-11-25
著者
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TOMIOKA Kenji
Department of Physics, Biology and Informatics, Faculty of Science, Yamaguchi University
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Fujisawa Yuko
Suntory Institute For Bioorganic Research
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Fujisawa Yuko
Physiological Laboratory Faculty Of Integrated Arts And Sciences Hiroshima University
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Tomioka Kenji
Department Of Biology Faculty Of Science Okayama University
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HISADA Miki
Suntory Institute for Bioorganic Research
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Singaravel Muniyandi
Department of Physics, Biology and Informatics, Faculty of Science, Research Institute of Time Studi
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Saifullah ASM
Department of Physics, Biology and Informatics, Faculty of Science, Research Institute of Time Studi
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Singaravel Muniyandi
Department Of Physics Biology And Informatics Faculty Of Science Research Institute Of Time Studies
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Saifullah Asm
Department Of Physics Biology And Informatics Faculty Of Science Research Institute Of Time Studies
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