Cryptochromes Interact Directly with PIFs to Control Plant Growth in Limiting Blue Light

Pedmale, U. V., Huang, S. S., Zander, M., Cole, B. J., Hetzel, J., Ljung, K., Reis, P. A., Sridevi, P., Nito, K., Nery, J. R., Ecker, J. R., Chory, J. (2016) Cryptochromes Interact Directly with PIFs to Control Plant Growth in Limiting Blue Light. Cell, 164 (1-2). pp. 233-45. ISSN 0092-8674

URL: http://www.ncbi.nlm.nih.gov/pubmed/26724867
DOI: 10.1016/j.cell.2015.12.018

Abstract

Sun-loving plants have the ability to detect and avoid shading through sensing of both blue and red light wavelengths. Higher plant cryptochromes (CRYs) control how plants modulate growth in response to changes in blue light. For growth under a canopy, where blue light is diminished, CRY1 and CRY2 perceive this change and respond by directly contacting two bHLH transcription factors, PIF4 and PIF5. These factors are also known to be controlled by phytochromes, the red/far-red photoreceptors; however, transcriptome analyses indicate that the gene regulatory programs induced by the different light wavelengths are distinct. Our results indicate that CRYs signal by modulating PIF activity genome wide and that these factors integrate binding of different plant photoreceptors to facilitate growth changes under different light conditions.

Item Type: Paper
Uncontrolled Keywords: Arabidopsis/growth & development/*metabolism/radiation effects Arabidopsis Proteins/*metabolism Basic Helix-Loop-Helix Transcription Factors/*metabolism Cryptochromes/*metabolism Gene Expression Hypocotyl/growth & development Light Phytochrome B/metabolism
Subjects: organism description > plant > Arabidopsis
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > plant proteins > cryptochromes
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > genes, structure and function > gene expression
organism description > plant
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > plant proteins
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > transcription factor
CSHL Authors:
Communities: CSHL labs > Pedmale lab
Depositing User: Matt Covey
Date Deposited: 13 Jun 2016 16:03
Last Modified: 13 Jun 2016 16:03
PMCID: PMC4721562
Related URLs:
URI: http://repository.cshl.edu/id/eprint/32863

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