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Science 24 March 1967:
Vol. 155. no. 3769, pp. 1576 - 1577
DOI: 10.1126/science.155.3769.1576
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Articles

Tetrodotoxin Blocks a Graded Sensory Response in the Eye of Limulus

R. M. Benolken 1 and C. J. Russell 1

1 Zoology Department, University of Minnesota, Minneapolis

The generalization that tetrodotoxin selectively blocks all-or none electrical activity of nerve and muscle but has negligible effect upon graded responses of sensory systeins does not appear to be valid for the Limulus eye. Tetrodotoxin reversibly blocks the graded transient component of this visual response, while the steady state component of the response is rela tively unaffected by the drug.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Ionic mechanisms of phototransduction in photoreceptor cells from the epistellar body of the octopus eledone cirrhosa.
C. Cobb and R Williamson (1999)
J. Exp. Biol. 202, 977-986
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Photoreception in Limulus: Role of an Electrogenic Sodium Pump?.
G. Duncan, S. L. Bonting, T. G. Smith, J. E. Brown, W. K. Stell, G. C. Murray, and J. A. Freeman (1969)
Science 164, 1188-1189
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Tetrodotoxin: Action on Graded Responses.
H. Grundfest and R. M. Benolken (1967)
Science 156, 1771
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Science. ISSN 0036-8075 (print), 1095-9203 (online)