The Effect of Light on RNA and Protein Synthesis in Plants

  • H. Mohr
  • P. Schopfer
Part of the NATO Advanced Study Institutes Series book series (NSSA, volume 12)


This lecture deals predominantly with the photoregulation of enzyme levels in plants by the photochromic proteinaceous photoreceptor, phytochrome. While there are claims that photocontrol of enzymes (enzyme synthesis, degradation, and activation) may be mediated by light absorption in other pigments as well (e.g. photo-synthetic pigments [1]) , the emphasis on phytochrome is justified for two reasons: firstly, phytochrome is the most important molecule in higher plants for the detection of photosignals from the environment and for making use of this information to regulate the orderly development of the living system; secondly, detailed knowledge of the molecular mechanisms through which phytochrome exerts its control over the development of higher plants may serve as a useful model for understanding the control of development in general, i.e. the control of gene expression during development.


Photostationary State Mustard Seedling CsCl Density Gradient Phytochrome System Phytochrome Action 
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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • H. Mohr
    • 1
  • P. Schopfer
    • 1
  1. 1.Biological Institute IIUniversity of FreiburgFreiburgWest Germany

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