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THE SPECTRAL SENSITIVITIES OF THE DORSAL OCELLI OF COCKROACHES AND HONEYBEES : AN ELECTROPHYSIOLOGICAL STUDY

The spectral sensitivities of the dorsal ocelli of cockroaches (Periplaneta americana, Blaberus craniifer) and worker honeybees (Apis mellifera) have been measured by electrophysiological methods. The relative numbers of quanta necessary to produce a constant size electrical response in the ocellus...

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Detalles Bibliográficos
Autores principales: Goldsmith, Timothy H., Ruck, Philip R.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1958
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2194880/
https://www.ncbi.nlm.nih.gov/pubmed/13563806
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author Goldsmith, Timothy H.
Ruck, Philip R.
author_facet Goldsmith, Timothy H.
Ruck, Philip R.
author_sort Goldsmith, Timothy H.
collection PubMed
description The spectral sensitivities of the dorsal ocelli of cockroaches (Periplaneta americana, Blaberus craniifer) and worker honeybees (Apis mellifera) have been measured by electrophysiological methods. The relative numbers of quanta necessary to produce a constant size electrical response in the ocellus were measured at various wave lengths between 302 and 623 mµ. The wave form of the electrical response (ERG) of the dark-adapted roach ocellus depends on the intensity but not the wave length of the stimulating light. The roach ocellus appears to possess a single photoreceptor type, maximally sensitive about 500 mµ. The ERG's of bee ocelli are qualitatively different in the ultraviolet and visible regions of the spectrum. The bee ocellus has two types of photoreceptor, maximally sensitive at 490 mµ and at about 335 to 340 mµ. The spectral absorption of the ocellar cornea of Blaberus craniifer was measured. There is no significant absorption between 350 and 700 mµ.
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spelling pubmed-21948802008-04-23 THE SPECTRAL SENSITIVITIES OF THE DORSAL OCELLI OF COCKROACHES AND HONEYBEES : AN ELECTROPHYSIOLOGICAL STUDY Goldsmith, Timothy H. Ruck, Philip R. J Gen Physiol Article The spectral sensitivities of the dorsal ocelli of cockroaches (Periplaneta americana, Blaberus craniifer) and worker honeybees (Apis mellifera) have been measured by electrophysiological methods. The relative numbers of quanta necessary to produce a constant size electrical response in the ocellus were measured at various wave lengths between 302 and 623 mµ. The wave form of the electrical response (ERG) of the dark-adapted roach ocellus depends on the intensity but not the wave length of the stimulating light. The roach ocellus appears to possess a single photoreceptor type, maximally sensitive about 500 mµ. The ERG's of bee ocelli are qualitatively different in the ultraviolet and visible regions of the spectrum. The bee ocellus has two types of photoreceptor, maximally sensitive at 490 mµ and at about 335 to 340 mµ. The spectral absorption of the ocellar cornea of Blaberus craniifer was measured. There is no significant absorption between 350 and 700 mµ. The Rockefeller University Press 1958-07-20 /pmc/articles/PMC2194880/ /pubmed/13563806 Text en Copyright © Copyright, 1958, by The Rockefeller Institute for Medical Research This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Article
Goldsmith, Timothy H.
Ruck, Philip R.
THE SPECTRAL SENSITIVITIES OF THE DORSAL OCELLI OF COCKROACHES AND HONEYBEES : AN ELECTROPHYSIOLOGICAL STUDY
title THE SPECTRAL SENSITIVITIES OF THE DORSAL OCELLI OF COCKROACHES AND HONEYBEES : AN ELECTROPHYSIOLOGICAL STUDY
title_full THE SPECTRAL SENSITIVITIES OF THE DORSAL OCELLI OF COCKROACHES AND HONEYBEES : AN ELECTROPHYSIOLOGICAL STUDY
title_fullStr THE SPECTRAL SENSITIVITIES OF THE DORSAL OCELLI OF COCKROACHES AND HONEYBEES : AN ELECTROPHYSIOLOGICAL STUDY
title_full_unstemmed THE SPECTRAL SENSITIVITIES OF THE DORSAL OCELLI OF COCKROACHES AND HONEYBEES : AN ELECTROPHYSIOLOGICAL STUDY
title_short THE SPECTRAL SENSITIVITIES OF THE DORSAL OCELLI OF COCKROACHES AND HONEYBEES : AN ELECTROPHYSIOLOGICAL STUDY
title_sort spectral sensitivities of the dorsal ocelli of cockroaches and honeybees : an electrophysiological study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2194880/
https://www.ncbi.nlm.nih.gov/pubmed/13563806
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