DOI: 10.1046/j.1365-313x.2003.01836.x. Nuclear translocation of the photoreceptor phytochrome B is necessary for its biological function in seedling photomorphogenesis

Nuclear translocation of the photoreceptor phytochrome B is necessary for its biological function in seedling photomorphogenesis

10.1046/j.1365-313x.2003.01836.x

Crossref journal-article

Wiley

The Plant Journal (311)

Abstract

SummaryThe phytochrome (phy) family of sensory photoreceptors (phyA to phyE in Arabidopsis) enables plants to optimize their growth and development under natural light environments. Subcellular localization studies have shown that the photoreceptor molecule is induced to translocate from cytosol to nucleus by light, but direct evidence of the functional relevance of this translocation has been lacking. Here, using a glucocorticoid receptor‐based fusion protein system, we demonstrate that both photoactivation and nuclear translocation combined are necessary and sufficient for the biological function of phyB. Conversely, neither artificial nuclear translocation of non‐photoactivated phyB nor artificial retention of photoactivated phyB in the cytosol provides detectable biological activity. Together these data indicate that signal transfer from photoactivated phyB to its primary signaling partner(s) is localized in the nucleus, and conversely suggest the absence of a cytosolic pathway from photoactivated phyB to light‐responsive genes.

Bibliography

Huq, E., AlâSady, B., & Quail, P. H. (2003). Nuclear translocation of the photoreceptor phytochrome B is necessary for its biological function in seedling photomorphogenesis. The Plant Journal, 35(5), 660â664. Portico.

Authors 3

Enamul Huq (first)
Bassem Al‐Sady (additional)
Peter H. Quail (additional)

References 22 Referenced 105

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{'key': 'e_1_2_5_16_1', 'first-page': '147', 'article-title': 'Mutations in the gene for the red/far‐red light receptor phytochrome B alter cell elongation and physiological responses throughout Arabidopsis development', 'volume': '5', 'author': 'Reed J.W.', 'year': '1993', 'journal-title': 'Plant Cell'} / Plant Cell / Mutations in the gene for the red/far‐red light receptor phytochrome B alter cell elongation and physiological responses throughout Arabidopsis development by Reed J.W. (1993)
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Dates

Type	When
Created	22 years ago (Aug. 26, 2003, 12:43 p.m.)
Deposited	1 year, 10 months ago (Oct. 13, 2023, 2:34 p.m.)
Indexed	4 weeks ago (Aug. 2, 2025, 12:01 a.m.)
Issued	22 years ago (Aug. 4, 2003)
Published	22 years ago (Aug. 4, 2003)
Published Online	22 years ago (Aug. 4, 2003)
Published Print	21 years, 11 months ago (Sept. 1, 2003)

Funders 0

None

BibTeX

@article{Huq_2003, title={Nuclear translocation of the photoreceptor phytochrome B is necessary for its biological function in seedling photomorphogenesis}, volume={35}, ISSN={1365-313X}, url={http://dx.doi.org/10.1046/j.1365-313x.2003.01836.x}, DOI={10.1046/j.1365-313x.2003.01836.x}, number={5}, journal={The Plant Journal}, publisher={Wiley}, author={Huq, Enamul and Al‐Sady, Bassem and Quail, Peter H.}, year={2003}, month=aug, pages={660–664} }

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