Blue Light Effects on the Level of Translation and Transcription

  • G. Richter
Conference paper
Part of the Proceedings in Life Sciences book series (LIFE SCIENCES)

Abstract

Recent findings suggest a relationship between light absorbed by a suitable photoreceptor system and the synthesis of discrete RNA species respective and proteins in developmental processes. Many of these are controlled by phytochrome. As to its mode of operation a mechanism of “differential gene activation and gene repression” has been proposed [14]. Indeed, recent studies on light-induced chloroplast differentiation seem to support this hypothesis. When dark-grown plants had been treated with red light the level of translatable mRNAs for several nuclear-coded proteins like light-harvesting chlorophyll a,b protein (LHCP; [1, 5]), the small subunit (SSU) and the large subunit (LSU) of ribulosebisphosphate carboxylase/oxygenase (RuBPCase; [19, 21]), and the precursor of a plastid-encoded polypeptide of 32,000 MW [12] increases drastically. The light-induced changes also include a decrease or disappearance of mRNA’s respective of the corresponding plastid proteins which is well documented for NADPH-protochlorophyllide oxidoreductase (PCR; [1, 13]).

Keywords

Chlorophyll Lignin Polypeptide Methionine Flavonoid 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • G. Richter
    • 1
  1. 1.Institut für BotanikUniversität HannoverHannover 1Germany

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