Optical Absorption and Emission Spectroscopy of Photoreceptor Pigments

  • Francesco Lenci
Part of the NATO ASI Series book series (NSSA, volume 211)


The common purpose of all sensory photopigments is the detection of light signals from the environment and the conversion of these external inputs into triggers for the transduction process, which, in our case, ends in the motile response of microorganisms to photic stimuli. To be efficient light detectors and signal converters, photoreceptor molecules usually have to be arranged in relatively ordered structures, such as, e. g., membranes, which they are embedded in or associated with, or paracrystalline-type structures which they are fixed in.


Polyatomic Molecule Euglena Gracilis Solvatochromic Shift Photic Stimulus Phosphorescence Quantum Yield 


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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • Francesco Lenci
    • 1
  1. 1.CNR Istituto di BiofisicaPisaItaly

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