Journal article
Quantal basis of photoreceptor spectral sensitivity of Drosophila melanogaster
The Journal of general physiology, Vol.66(2), pp.149-168
08/1975
DOI: 10.1085/jgp.66.2.149
PMCID: PMC2226201
PMID: 809537
Abstract
Small potential fluctuations ("bumps"), boyh spontaneous and light induced, can be recorded intracellularly from the photoreceptors of Drosophila melanogaster. Statistical analyses of these bumps in the spectral range, 400-600 nm, lead to the following interpretations; (a) For weak stimuli at least, these bumps are the quantal units of the receptor potential. (b) Quanta of various wavelengths, when effectively absorbed, will elicit bumps of the same average size. (c) The spectral sensitivity of the receptor potential appears to have its origin in the relative efficiency of quantum bump production at different wavelengths, and not in the intrinsic difference in the properties of bumps produced by quanta of differenct wavelengths.
Details
- Title: Subtitle
- Quantal basis of photoreceptor spectral sensitivity of Drosophila melanogaster
- Creators
- Chun-Fang Wu - University of Iowa, BiologyWilliam L Pak
- Resource Type
- Journal article
- Publication Details
- The Journal of general physiology, Vol.66(2), pp.149-168
- DOI
- 10.1085/jgp.66.2.149
- PMID
- 809537
- PMCID
- PMC2226201
- NLM abbreviation
- J Gen Physiol
- ISSN
- 0022-1295
- eISSN
- 1540-7748
- Language
- English
- Date published
- 08/1975
- Academic Unit
- Iowa Neuroscience Institute; Biology
- Record Identifier
- 9984217059502771
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