Science. 2008 Dec 19;322(5909):1832-5.

The circadian clock in Arabidopsis roots is a simplified slave version of the clock in shoots.

James AB, Monreal JA, Nimmo GA, Kelly CL, Herzyk P, Jenkins GI, Nimmo HG.

Source

Division of Molecular and Cellular Biology, Faculty of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK.

Abstract

The circadian oscillator in eukaryotes consists of several interlocking feedback loops through which the expression of clock genes is controlled. It is generally assumed that all plant cells contain essentially identical and cell-autonomous multiloop clocks. Here, we show that the circadian clock in the roots of mature Arabidopsis plants differs markedly from that in the shoots and that the root clock is synchronized by a photosynthesis-related signal from the shoot. Two of the feedback loops of the plant circadian clock are disengaged in roots, because two key clock components, the transcription factors CCA1 and LHY, are able to inhibit gene expression in shoots but not in roots. Thus, the plant clock is organ-specific but not organ-autonomous.

PMID:: 19095940; [PubMed - indexed for MEDLINE]

LinkOut - more resources

Full Text Sources

Other Literature Sources

Molecular Biology Databases

DIURON - HSDB

Supplemental Content

Save items

Related citations in PubMed

Reciprocal regulation between TOC1 and LHY/CCA1 within the Arabidopsis circadian clock. [Science. 2001]
Reciprocal regulation between TOC1 and LHY/CCA1 within the Arabidopsis circadian clock.
Alabadí D, Oyama T, Yanovsky MJ, Harmon FG, Más P, Kay SA. Science. 2001 Aug 3; 293(5531):880-3.
A functional genomics approach reveals CHE as a component of the Arabidopsis circadian clock. [Science. 2009]
A functional genomics approach reveals CHE as a component of the Arabidopsis circadian clock.
Pruneda-Paz JL, Breton G, Para A, Kay SA. Science. 2009 Mar 13; 323(5920):1481-5.
Circadian clock proteins LHY and CCA1 regulate SVP protein accumulation to control flowering in Arabidopsis. [Plant Cell. 2008]
Circadian clock proteins LHY and CCA1 regulate SVP protein accumulation to control flowering in Arabidopsis.
Fujiwara S, Oda A, Yoshida R, Niinuma K, Miyata K, Tomozoe Y, Tajima T, Nakagawa M, Hayashi K, Coupland G, et al. Plant Cell. 2008 Nov; 20(11):2960-71. Epub 2008 Nov 14.
Review The role of CCA1 and LHY in the plant circadian clock. [Dev Cell. 2002]
Review The role of CCA1 and LHY in the plant circadian clock.
Green RM, Tobin EM. Dev Cell. 2002 May; 2(5):516-8.
Review MYB transcription factors in the Arabidopsis circadian clock. [J Exp Bot. 2002]
Review MYB transcription factors in the Arabidopsis circadian clock.
Carré IA, Kim JY. J Exp Bot. 2002 Jul; 53(374):1551-7.

See reviews... See all...

Cited by 18 PubMed Central articles

Spontaneous spatiotemporal waves of gene expression from biological clocks in the leaf. [Proc Natl Acad Sci U S A. 2012]
Spontaneous spatiotemporal waves of gene expression from biological clocks in the leaf.
Wenden B, Toner DL, Hodge SK, Grima R, Millar AJ. Proc Natl Acad Sci U S A. 2012 Apr 24; 109(17):6757-62. Epub 2012 Apr 10.
Tissue specific diurnal rhythms of metabolites and their regulation during herbivore attack in a native tobacco, Nicotiana attenuata. [PLoS One. 2011]
Tissue specific diurnal rhythms of metabolites and their regulation during herbivore attack in a native tobacco, Nicotiana attenuata.
Kim SG, Yon F, Gaquerel E, Gulati J, Baldwin IT. PLoS One. 2011; 6(10):e26214. Epub 2011 Oct 18.
Review Control of stomatal aperture: a renaissance of the old guard. [Plant Signal Behav. 2011]
Review Control of stomatal aperture: a renaissance of the old guard.
Araújo WL, Fernie AR, Nunes-Nesi A. Plant Signal Behav. 2011 Sep; 6(9):1305-11.

See all...

Related information

Related Citations
Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.
Compound (MeSH Keyword)
PubChem chemical compound records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.
Protein Clusters
Clusters of related proteins from the Protein Clusters database that cite the current articles. Sources of references in Protein Clusters include the associated Gene and Conserved Domain records as well as NCBI added citations.
Substance (MeSH Keyword)
PubChem chemical substance (submitted) records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.
Taxonomy via GenBank
Taxonomy records associated with the current articles through taxonomic information on related molecular database records (Nucleotide, Protein, Gene, SNP, Structure).
Protein
Protein translation features of primary database (GenBank) nucleotide records reported in the current articles as well as Reference Sequences (RefSeqs) that include the articles as references.
Cited in PMC
Full-text articles in the PubMed Central Database that cite the current articles.

Recent activity

Clear Turn Off Turn On

The circadian clock in Arabidopsis roots is a simplified slave version of the cl...
The circadian clock in Arabidopsis roots is a simplified slave version of the clock in shoots.
Science. 2008 Dec 19 ;322(5909):1832-5.

PubMed
Rapid membrane disruption by a perforin-like protein facilitates parasite exit f...
Rapid membrane disruption by a perforin-like protein facilitates parasite exit from host cells.
Science. 2009 Jan 23 ;323(5913):530-3. Epub 2008 Dec 18 .

PubMed
Suppression of bacterial cell wall-induced polyarthritis by recombinant gamma in...
Suppression of bacterial cell wall-induced polyarthritis by recombinant gamma interferon.
Cytokine. 1991 Mar ;3(2):98-106.

PubMed
Alveolar recruitment and arterial desflurane concentration during bariatric surg...
Alveolar recruitment and arterial desflurane concentration during bariatric surgery.
Anesth Analg. 2009 Jan ;108(1):120-7.

PubMed
Laboratory practice guidelines for detecting and reporting BCR-ABL drug resistan...
Laboratory practice guidelines for detecting and reporting BCR-ABL drug resistance mutations in chronic myelogenous leukemia and acute lymphoblastic leukemia: a report of the Association for Molecular Pathology.
J Mol Diagn. 2009 Jan ;11(1):4-11. Epub 2008 Dec 18 .

PubMed

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

PubMed

Result Filters

Display Settings:

Send to:

The circadian clock in Arabidopsis roots is a simplified slave version of the clock in shoots.

Source

Abstract

Publication Types, MeSH Terms, Substances

Publication Types

MeSH Terms

Substances

LinkOut - more resources

Full Text Sources

Other Literature Sources

Molecular Biology Databases

Supplemental Content

Save items

Related citations in PubMed

Cited by 18 PubMed Central articles

Related information

Recent activity

Simple NCBI Directory

Getting Started

Resources

Popular

Featured

NCBI Information