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Ca2+ and phytochrome action in plants.

S J Roux1

  • 1Department of Botany, University of Texas at Austin 78712, USA.

Bioscience
|January 1, 1984
PubMed
Summary
This summary is machine-generated.

Red light triggers plant development via phytochrome. This review explores how activated phytochrome may initiate calcium fluxes, regulating red-light responses in plants.

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Area of Science:

  • Plant biology
  • Photomorphogenesis
  • Molecular signaling

Background:

  • Red light is crucial for plant development, mediated by the pigment phytochrome.
  • The precise mechanism by which phytochrome controls photomorphogenesis remains unclear.

Purpose of the Study:

  • To review evidence linking photoactivated phytochrome to cellular calcium fluxes.
  • To discuss the potential role of these calcium fluxes in mediating red-light responses.

Main Methods:

  • Literature review of studies on phytochrome, photomorphogenesis, and calcium signaling in plants.

Main Results:

  • Photoactivated phytochrome is implicated in initiating calcium fluxes within plant cells.
  • These calcium fluxes represent a plausible signaling mechanism for red-light effects.

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Conclusions:

  • Calcium fluxes are a potential key mediator of phytochrome's role in plant photomorphogenesis.
  • Further research is needed to fully elucidate the calcium-mediated signaling pathways.