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PMID: 8901532 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S. Review

From seed germination to flowering, light controls plant development via the pigment phytochrome.

Proceedings of the National Academy of Sciences of the United States of America ·Vol. 93 ·No. 22 ·1996-10-29 ·Pages 12066-71

Chory J, Chatterjee M, Cook RK, Elich T, Fankhauser C, Li J, Nagpal P, Neff M, Pepper A, Poole D, Reed J, Vitart V

Abstract

Plant growth and development are regulated by interactions between the environment and endogenous developmental programs. Of the various environmental factors controlling plant development, light plays an especially important role, in photosynthesis, in seasonal and diurnal time sensing, and as a cue for altering developmental pattern. Recently, several laboratories have devised a variety of genetic screens using Arabidopsis thaliana to dissect the signal transduction pathways of the various photoreceptor systems. Genetic analysis demonstrates that light responses are not simply endpoints of linear signal transduction pathways but are the result of the integration of information from a variety of photoreceptors through a complex network of interacting signaling components. These signaling components include the red/far-red light receptors, phytochromes, at least one blue light receptor, and negative regulatory genes (DET, COP, and FUS) that act downstream from the photoreceptors in the nucleus. In addition, a steroid hormone, brassinolide, also plays a role in light-regulated development and gene expression in Arabidopsis. These molecular and genetic data are allowing us to construct models of the mechanisms by which light controls development and gene expression in Arabidopsis. In the future, this knowledge can be used as a framework for understanding how all land plants respond to changes in their environment.

MeSH Terms
Germination/physiology Light Models, Biological Phenotype Photoreceptor Cells/physiology Phytochrome/chemistry,physiology Seeds/physiology Signal Transduction/physiology Structure-Activity Relationship
Chemicals
Phytochrome
Authors & Affiliations
12 authors, click to expand affiliations / ORCID
Chory J
Plant Biology Laboratory, Salk Institute, La Jolla, CA 92037, USA.
Chatterjee M
Cook R K
Elich T
Fankhauser C
Li J
Nagpal P
Neff M
Pepper A
Poole D
Reed J
Vitart V
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
DOI
10.1073/pnas.93.22.12066
Published
1996-10-29
Pages
12066-71
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC37942
Subset
IM
External Links
PubMed source DOI: 10.1073/pnas.93.22.12066 PMC Full Text View journal details
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