Article: article from journal or magazin.
Transposing phytochrome into the nucleus.
Trends in Plant Science
To control many physiological responses, phytochromes directly modulate gene expression. A key regulatory event in this signal transduction pathway is the light-controlled translocation of the photoreceptor from the cytoplasm into the nucleus. Recent publications are beginning to shed light on the molecular mechanisms underlying this central control point. Interestingly, there is a specific mechanism for phytochrome A (phyA) nuclear accumulation. The dedicated phyA nuclear import pathway might be important for the distinct photosensory specificity of this atypical phytochrome. Recent studies in the field also provide a starting point for investigating how the different subcellular pools of phytochrome can control distinct responses to light.
Biological Transport, Cell Nucleus/metabolism, Homeostasis, Models, Biological, Phytochrome/metabolism, Phytochrome A/metabolism, Phytochrome B/metabolism, Plant Physiological Phenomena
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