The Journal of General Physiology
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The Journal of General Physiology, Vol 44, 571-584, Copyright © 1961 by The Rockefeller University Press

ARTICLE

Recording of Retinal Action Potentials from Single Cells in the Insect Compound Eye

Kén-Ichi Naka 1

1 From the Department of Biology, Faculty of Science, Kyushu University, Fukuoka, Japan

Electrical responses were recorded intracellularly from the compound eyes of a fly (Lucilia) and of several dragonflies (Copera, Agriocnemis, and Lestes). An ommatidium of the dragonflies is made up of four retinula cells and a rhabdom composed of three rhabdomeres while the Lucilia has an ommatidium of seven independent retinula cells and rhabdomeres. The intracellular responses presumably recorded from the retinula cell had the same wave form in the two groups of insects: The responses were composed of two components or phases, a transient spike-like potential and a slow one maintained during illumination. The membrane potential, in the range of -25 to -70 mv., was influenced by the level of adaptation, and it was transiently depolarized to zero by high levels of illumination.

Submitted on April 7, 1961


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A. A. Alawi and W. L. Pak
On-Transient of Insect Electroretinogram: Its Cellular Origin
Science, June 4, 1971; 172(3987): 1055 - 1057.
[Abstract] [PDF]

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K.-i. Naka and E. Eguchi
Effect of Background Illumination on the Retinal Action Potential
Science, June 8, 1962; 136(3519): 877 - 879.
[Abstract] [PDF]


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