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Plant Physiol, September 2002, Vol. 130, pp. 102-110
The Circadian Clock That Controls Gene Expression in Arabidopsis
Is Tissue Specific1
Simon C.
Thain,2
Giovanni
Murtas,3
James R.
Lynn,
Robert. B.
McGrath, and
Andrew J.
Millar*
Department of Biological Sciences, University of Warwick, Coventry
CV4 7AL, United Kingdom (S.C.T., G.M., A.J.M.); Horticulture Research
International, Wellesbourne, Warwick CV35 9EF, United Kingdom (J.R.L.);
and Laboratory of Molecular Biology, The Rockefeller University, 1230 York Avenue, New York, New York 10021 (R.B.M.)
The expression of CHALCONE SYNTHASE
(CHS) expression is an important control step in the
biosynthesis of flavonoids, whichare major photoprotectants in
plants. CHS transcription is regulatedby endogenous
programs and in response to environmental signals.Luciferase
reporter gene fusions showed that the CHS promoteris
controlled by the circadian clock both in roots and in aerialorgans of
transgenic Arabidopsis plants. The period of rhythmicCHS expression differs from the previously described
rhythm ofchlorophyll a/b-binding protein
(CAB) gene expression, indicatingthat
CHS is controlled by a distinct circadian clock. The
differencein period is maintained in the wild-type Arabidopsis
accessionstested and in the de-etiolated 1 and
timing of CAB expression1 mutants. These
clock-affecting mutations alter the rhythms ofboth CAB
and CHS markers, indicating that a similar (if not
identical)circadian clock mechanism controls these rhythms. The
distincttissue distribution of CAB and
CHS expression suggests that theproperties of the
circadian clock differ among plant tissues.Several animal organs also
exhibit heterogeneous circadian propertiesin culture but are believed
to be synchronized in vivo. The factthat differing periods are
manifest in intact plants supportsour proposal that spatially
separated copies of the plant circadianclock are at most weakly
coupled, if not functionally independent.This autonomy has apparently
permitted tissue-specific specializationof circadiantiming.
UV-A Light Induces Anthocyanin Biosynthesis in a Manner Distinct from Synergistic Blue + UV-B Light and UV-A/Blue Light Responses in Different Parts of the Hypocotyls in Turnip Seedlings.
Y. Wang, B. Zhou, M. Sun, Y. Li, and S. Kawabata (2012)
Plant Cell Physiol.
53, 1470-1480
|Abstract »|Full Text »|PDF »
Diel patterns of leaf and root growth: endogenous rhythmicity or environmental response?.
T. Ruts, S. Matsubara, A. Wiese-Klinkenberg, and A. Walter (2012)
J. Exp. Bot.
63, 3339-3351
|Abstract »|Full Text »|PDF »
Spontaneous spatiotemporal waves of gene expression from biological clocks in the leaf.
B. Wenden, D. L. K. Toner, S. K. Hodge, R. Grima, and A. J. Millar (2012)
PNAS
109, 6757-6762
|Abstract »|Full Text »|PDF »
Light-harvesting chlorophyll a/b-binding proteins are required for stomatal response to abscisic acid in Arabidopsis.
Y.-H. Xu, R. Liu, L. Yan, Z.-Q. Liu, S.-C. Jiang, Y.-Y. Shen, X.-F. Wang, and D.-P. Zhang (2012)
J. Exp. Bot.
63, 1095-1106
|Abstract »|Full Text »|PDF »
Rapid Assessment of Gene Function in the Circadian Clock Using Artificial MicroRNA in Arabidopsis Mesophyll Protoplasts.
The Circadian Clock in Arabidopsis Roots Is a Simplified Slave Version of the Clock in Shoots.
A. B. James, J. A. Monreal, G. A. Nimmo, C. L. Kelly, P. Herzyk, G. I. Jenkins, and H. G. Nimmo (2008)
Science
322, 1832-1835
|Abstract »|Full Text »|PDF »
Circadian Timekeeping during Early Arabidopsis Development.
P. A. Salome, Q. Xie, and C. R. McClung (2008)
Plant Physiology
147, 1110-1125
|Abstract »|Full Text »|PDF »
PRR3 Is a Vascular Regulator of TOC1 Stability in the Arabidopsis Circadian Clock.
A. Para, E. M. Farre, T. Imaizumi, J. L. Pruneda-Paz, F. G. Harmon, and S. A. Kay (2007)
PLANT CELL
19, 3462-3473
|Abstract »|Full Text »|PDF »
A Circadian Rhythm Set by Dusk Determines the Expression of FT Homologs and the Short-Day Photoperiodic Flowering Response in Pharbitis.
R. Hayama, B. Agashe, E. Luley, R. King, and G. Coupland (2007)
PLANT CELL
19, 2988-3000
|Abstract »|Full Text »|PDF »
The Arabidopsis thaliana Clock.
P. A. Salome and C. R. McClung (2004)
J Biol Rhythms
19, 425-435
|Abstract »|PDF »
Roots, Cycles and Leaves. Expression of the Phosphoenolpyruvate Carboxylase Kinase Gene Family in Soybean.
S. Sullivan, G. I. Jenkins, and H. G. Nimmo (2004)
Plant Physiology
135, 2078-2087
|Abstract »|Full Text »|PDF »
Characterization of Plant Circadian Rhythms by Employing Arabidopsis Cultured Cells with Bioluminescence Reporters.
N. Nakamichi, S. Ito, T. Oyama, T. Yamashino, T. Kondo, and T. Mizuno (2004)
Plant Cell Physiol.
45, 57-67
|Abstract »|Full Text »|PDF »
Possible Involvement of Leaf Gibberellins in the Clock-Controlled Expression of XSP30, a Gene Encoding a Xylem Sap Lectin, in Cucumber Roots.
A. Oda, C. Sakuta, S. Masuda, T. Mizoguchi, H. Kamada, and S. Satoh (2003)
Plant Physiology
133, 1779-1790
|Abstract »|Full Text »
The TIME FOR COFFEE Gene Maintains the Amplitude and Timing of Arabidopsis Circadian Clocks.
A. Hall, R. M. Bastow, S. J. Davis, S. Hanano, H. G. McWatters, V. Hibberd, M. R. Doyle, S. Sung, K. J. Halliday, R. M. Amasino, et al. (2003)
PLANT CELL
15, 2719-2729
|Abstract »|Full Text »|PDF »
A Suite of Photoreceptors Entrains the Plant Circadian Clock.
A. J. Millar (2003)
J Biol Rhythms
18, 217-226
|Abstract »|PDF »
Enhancer Trapping Reveals Widespread Circadian Clock Transcriptional Control in Arabidopsis.
