, Volume 165, Issue 4, pp 502–506 | Cite as

Diurnal and circadian rhythmicity in the expression of light-induced plant nuclear messenger RNAs

  • K. Kloppstech


The levels of nuclear mRNAs for three light-inducible proteins (light-harvesting chlorophyll a/b protein, small subunit of ribulose-1,5-bisphosphate carboxylase and early light-induced protein) have been analyzed under light-dark and constant light conditions. The levels of all three mRNAs have been found to vary considerably during the day, both under ligh-dark and under constant light conditions, demonstrating the existence of diurnal and circadian rhythmicity in the expressionoof these nuclear-coded plant proteins. The levels of two of these mRNAs have been found to be enhanced 2 h before the beginning of illumination when active phytochrome levels are still low.

Key words

Circadian rhythmicity Light and mRNA Pisum (mRNA and light) Rhythm (circadian) Translation (light-induced mRNA) 



early light-inducible protein


light-harvesting chlorophyll alb protein; poly(A)RNA=polyadenylated RNA


(small subunit) ribulose-1,5-bisphosphate carboxylase


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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • K. Kloppstech
    • 1
  1. 1.Institut für BotanikUniversität HannoverHannover 21Federal Republic of Germany

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