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PMID: 19815685 Published · ppublish English Journal Article Research Support, N.I.H., Extramural Research Support, U.S. Gov't, Non-P.H.S. Review

Phytochrome functions in Arabidopsis development.

Journal of experimental botany ·Vol. 61 ·No. 1 ·2010-00-00 ·Pages 11-24

Franklin KA, Quail PH

Abstract

Light signals are fundamental to the growth and development of plants. Red and far-red light are sensed using the phytochrome family of plant photoreceptors. Individual phytochromes display both unique and overlapping roles throughout the life cycle of plants, regulating a range of developmental processes from seed germination to the timing of reproductive development. The evolution of multiple phytochrome photoreceptors has enhanced plant sensitivity to fluctuating light environments, diversifying phytochrome function, and facilitating conditional cross-talk with other signalling systems. The isolation of null mutants, deficient in all individual phytochromes, has greatly advanced understanding of phytochrome functions in the model species, Arabidopsis thaliana. The creation of mutants null for multiple phytochrome combinations has enabled the dissection of redundant interactions between family members, revealing novel regulatory roles for this important photoreceptor family. In this review, current knowledge of phytochrome functions in the light-regulated development of Arabidopsis is summarised.

MeSH Terms
Adaptation, Physiological Arabidopsis/anatomy & histology,growth & development,metabolism Freezing Phytochrome/metabolism Reproduction Seedlings/growth & development
Chemicals
Phytochrome
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Franklin Keara A
Department of Biology, University of Leicester, Leicester LE1 7RH, UK. kaf@leicester.ac.uk
Quail Peter H
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Article Info
Journal
Journal of experimental botany
Abbr.
J Exp Bot
ISSN
1460-2431
DOI
10.1093/jxb/erp304
Email
kaf@leicester.ac.uk
Published
2010-00-00
Pages
11-24
Language
English
Region
England
NLM ID
9882906
PMCID
PMC2800801
Subset
IM
Grants
NIGMS NIH HHS · R01 GM047475 · United States
NIGMS NIH HHS · GM-47475 · United States
External Links
PubMed source DOI: 10.1093/jxb/erp304 PMC Full Text View journal details
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