P<scp>HYTOCHROMES</scp>C<scp>ONTROL</scp>P<scp>HOTOMORPHOGENESIS BY</scp>D<scp>IFFERENTIALLY</scp>R<scp>EGULATED</scp>, I<scp>NTERACTING</scp>S<scp>IGNALING</scp>P<scp>ATHWAYS IN</scp>H<scp>IGHER</scp>P<scp>LANTS</scp>

DOI Web Site 被引用文献9件
  • Ferenc Nagy
    Institute of Plant Biology, Biological Research Center, H-6701 Szeged, Hungary;
  • Eberhard Schäfer
    Institute of Plant Biology, Biological Research Center, H-6701 Szeged, Hungary;

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<jats:p>▪ Abstract  In this review the kinetic properties of both phytochrome A and B measured by in vivo spectroscopy in Arabidopsis are described. Inactivation of phyA is mediated by destruction and that of phyB by fast dark reversion. Recent observations, describing a complex interaction network of various phytochromes and cryptochromes, are also discussed. The review describes recent analysis of light-dependent nuclear translocation of phytochromes and genetic and molecular dissection of phyA- and phyB-mediated signal transduction. After nuclear transport, both phyA- and phyB-mediated signal transduction probably include the formation of light-dependent transcriptional complexes. Although this hypothesis is quite attractive and probably true for some responses, it cannot account for the complex network of phyA-mediated signaling and the interaction with the circadian clock. In addition, the biological function of phytochromes localized in the cytosol remains to be elucidated.</jats:p>

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