Thermal activation of the visual transduction mechanism in retinal rods [16]

K. W. Yau, G. Matthews, D. A. Baylor

Research output: Contribution to journalLetterpeer-review

Abstract

INVERTEBRATE photoreceptors show electrical changes which apparently result from isomerisation of single rhodopsin molecules by light or thermal energy1-3. Observation of corresponding phenomena in vertebrates has been prevented by intercellular electrical coupling, which averages membrane potential over many photoreceptors4-6. Recently, however, recordings of membrane current from individual rod outer segments have revealed responses to single photons7,8. Here we report that similar electrical events occasionally occur in darkness, perhaps because of thermal isomerisation of rhodopsin.

Original languageEnglish (US)
Pages (from-to)806-807
Number of pages2
JournalNature
Volume279
Issue number5716
DOIs
StatePublished - Dec 1 1979
Externally publishedYes

ASJC Scopus subject areas

  • General

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