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Trends Plant Sci. 2008 Mar;13(3):108-14. doi: 10.1016/j.tplants.2007.12.003. Epub 2008 Feb 14.

Light signaling: back to space.

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  • 1Departament de Genètica Molecular IBMB, Laboratori de Genètica Molecular Vegetal, Consorci CSIC-IRTA, c. Jordi Girona, 18-26, 08034 Barcelona, Spain.

Abstract

Recent work has increased our understanding of the molecular and cellular mechanisms of the phytochrome family of photoreceptors in controlling plant photomorphogenesis. However, the importance of long-distance communication in controlling light responses has received relatively little attention and is poorly understood. In this article, by taking a closer look at old and new experiments that extend the analysis of light signaling beyond the limits of the plant cell, we offer to look at the field in a new light. Furthermore, we discuss how intercellular and inter-organ communication might integrate with the transcriptional networks controlling light-regulated responses in plants, a novel view that might help to re-assess the parameters by which we screen for photomorphogenic mutants in the future.

PMID:
18280200
[PubMed - indexed for MEDLINE]
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