Phytochromes and Cryptochromes in the Entrainment of the <i>Arabidopsis</i> Circadian Clock

DOI Web Site 被引用文献35件
  • David E. Somers
    Department of Cell Biology and National Science Foundation Center for Biological Timing, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92307, USA.
  • Paul F. Devlin
    Department of Cell Biology and National Science Foundation Center for Biological Timing, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92307, USA.
  • Steve A. Kay
    Department of Cell Biology and National Science Foundation Center for Biological Timing, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92307, USA.

抄録

<jats:p> Circadian clocks are synchronized by environmental cues such as light. Photoreceptor-deficient <jats:italic>Arabidopsis thaliana</jats:italic> mutants were used to measure the effect of light fluence rate on circadian period in plants. Phytochrome B is the primary high-intensity red light photoreceptor for circadian control, and phytochrome A acts under low-intensity red light. Cryptochrome 1 and phytochrome A both act to transmit low-fluence blue light to the clock. Cryptochrome 1 mediates high-intensity blue light signals for period length control. The presence of cryptochromes in both plants and animals suggests that circadian input pathways have been conserved throughout evolution. </jats:p>

収録刊行物

  • Science

    Science 282 (5393), 1488-1490, 1998-11-20

    American Association for the Advancement of Science (AAAS)

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