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Off-responses of newt pit organs after chemical stimulation

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Summary

Distilled water rinsing after stimulation of the newt pit organ with divalent chloride salts produced neural off-responses. The off-response was selectively depressed by HgCl2 treatment and was not suppressed by a water rinse containing NaCl. The results indicate that the off-response might be due to the removal of the divalent cations bound to the receptor membrane.

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Author notes

  1. S. Harada

    Present address: Department of Oral Physiology, Dental School, Kagoshima University, 890, Kagoshima, Japan

Authors and Affiliations

  1. Biological Institute, College of Liberal Arts, Kagoshima University, 890, Kagoshima, Japan

    S. Harada, Y. Fujioka & S. Yamashita

Authors
  1. S. Harada
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  2. Y. Fujioka
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  3. S. Yamashita
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Additional information

Acknowledgments. Supported by a grant from the Ministry of Education, Science and Culture of Japan to S.Y. We are grateful to Dr M. Sato and Dr S. Kiyohara for their valuable comments on the manuscript. We also thank J.S. Steven for reading the manuscript.

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Harada, S., Fujioka, Y. & Yamashita, S. Off-responses of newt pit organs after chemical stimulation. Experientia 41, 460–462 (1985). https://doi.org/10.1007/BF01966146

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  • DOI: https://doi.org/10.1007/BF01966146

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