Accession Number : AD0731125

Title :   Retinal Action Potential in the White-Eyed Mutant of the Mosquito Aedes aegypti L.

Descriptive Note : Final rept. 1 Jul 68-1 Jun 69,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Personal Author(s) : Brammer,J. D.

Report Date : JUL 1971

Pagination or Media Count : 13

Abstract : The retinal action potential in the white-eyed mutant mosquito has been recorded and, according to data obtained through electrophysiologic and electron microscopic technics, does not appear qualitatively different from that previously recorded in the pigmented eye of the Rockefeller strain of this mosquito (Aedes aegypti L.). Of the two types, the white-eyed mutant is, however, more sensitive to light because no light-screening pigment granules are present to isolate the ommatidia from each other. Light entering from various angles can stimulate an ommatidium or several ommatidia. As a result, the directional sensitivity of the eye decreases. More research is needed to confirm the probability that the resolving power (i.e., visual acuity) of the white-eyed mutant is considerably less than that of its pigmented counterpart. (Author)

Descriptors :   (*AEDES, MUTATIONS), (*VISUAL ACUITY, AEDES), (*RETINA, AEDES), GENETICS, EYE, ORGANIC PIGMENTS, CULICIDAE, LIGHT, SENSITIVITY, ENTOMOLOGY

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE