Accession Number : ADA308371

Title :   Photo-Signa1 Transduction in Motile Cilia Blepharisma.

Descriptive Note : Final technical rept. 30 Sep 92-31 Dec 95,

Corporate Author : NEBRASKA UNIV LINCOLN HYDRODYNAMICS LAB

Personal Author(s) : Song, Pill-Soon

PDF Url : ADA308371

Report Date : 01 FEB 1996

Pagination or Media Count : 4

Abstract : Blepharisma-japonicum and Stentor coeruleus, single cell protozoan ciliates, possess both light intensity- and wavelength-sensitivity. Their light sensor molecules, blepharismin and stentorin, respectively, contain hypericin-derived structures as unique photoreceptor chromophores. Under this grant, we recently elucidated the chemical structures of both blepharismin and stentorin. How these light sensor molecules mediate the intensity- and wavelength-sensitive light-sensory responses in these single cell organisms is still under investigation in this laboratory, results so far strongly suggest that both blepharismin and stentorin initiate their primary photoprocesses via electron transfer.

Descriptors :   *CHROMOPHORES, *PHOTODETECTORS, *PROTOZOA, *SIGNAL LIGHTS, *PHOTORECEPTORS, *PHOTOGRAPHIC PROCESSING, DETECTORS, MOLECULES, BACTERIA, CELLS, INTENSITY, LIGHT, MOLECULAR STRUCTURE, ELECTRON TRANSFER.

Subject Categories : Microbiology
      Optical Detection and Detectors
      Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE