Responses of Barnacle Photoreceptors to High Energy Flashes of Short Duration

Abstract In chromatic adapted barnacle median and lateral photoreceptors the two stable states of the photopigment (rhodopsin R and metarhodopsin M) were interconverted with intense, colored light flashes of 1 ms duration. Only after conversion of the red adapted photoreceptor in K+-Ringer solution with an intense flash the negative early receptor potential, ERP (of R) gradually appeared detected with an indicator flash. For the opposite conversion (blue adapted, R→M) the gradual appearence of the positive ERP (M) was not measurable in the same time span. In artificial seawater all flash stimuli yielded - irrespective of color - the transient component of the late receptor potential (LRP). ERP results for the lateral photoreceptor are discussed in view of an existing kinetic model and an attempt is made to give an explanation which covers the new LRP transient and ERP results for both types of photoreceptor (appendix).

• Publication year

  1978

• Venue

  Zeitschrift fur Naturforschung. Section C, Biosciences

• Publication date

  1978-08-01

• Fields of study

  Biology, Medicine, Physics

• Identifiers
  DOI 10.1515/znc-1978-7-827PMID 152011
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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