Plant Physiol.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (61)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Casal, J. J.
Right arrow Articles by Mazzella, M. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Casal, J. J.
Right arrow Articles by Mazzella, M. A.
Agricola
Right arrow Articles by Casal, J. J.
Right arrow Articles by Mazzella, M. A.

Conditional Synergism between Cryptochrome 1 and Phytochrome B Is Shown by the Analysis of phyA, phyB, and hy4 Simple, Double, and Triple Mutants in Arabidopsis

Jorge José Casal* and María Agustina Mazzella

Departamento de Ecología, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, 1417-Buenos Aires, Argentina

Wild-type or phyA, phyB, or hy4 mutant Arabidopsis seedlings lacking phytochrome A (phyA), phytochrome B (phyB), or cryptochrome 1 (cry1), respectively, and the double and triple mutants were used in combination with blue-light treatments given simultaneously with red or far-red light. We investigated the interaction between phytochromes and cry1 in the control of hypocotyl growth and cotyledon unfolding. Under conditions deficient for cry1 (short exposures to blue light) or phyB (far-red background), these photoreceptors acted synergistically: Under short exposures to blue light (3 h/d) added to a red-light background, cry1 activity required phyB (e.g. the hy4 mutant was taller than the wild type but the phyBhy4 mutant was not taller than the phyB mutant). Under prolonged exposures to blue light (24 h/d) added to a far-red light background, phyB activity required cry1 (e.g. the phyAphyB mutant was taller than the phyA mutant but the phyAphyBhy4 mutant was not taller than the phyAhy4 mutant). Under more favorable light inputs, i.e. prolonged exposures to blue light added to a red-light background, the effects of cry1 and phyB were independent. Thus, the synergism between phyB and cry1 is conditional. The effect of cry1 was not reduced by the phyA mutation under any tested light condition. Under continuous blue light the triple mutant phyAphyBhy4 showed reduced hypocotyl growth inhibition and cotyledon unfolding compared with the phyAphyB mutant. The action of cry1 in the phyAphyB double mutant was higher under the red-light than the far-red-light background, indicating a synergistic interaction between cry1 and phytochromes C, D, or E; however, a residual action of cry1 independent of any phytochrome is likely to occur.

*   Corresponding author; e-mail casal{at}ifeva.edu.ar; fax 541-521-1384.

Plant Physiol. (1998) 118: 19-25
Copyright Clearance Center:   0032-0889/98/118//07
© 1998 American Society of Plant Physiologists




This article has been cited by other articles:


Home page
 J Exp BotHome page
K. A. Franklin and P. H. Quail
Phytochrome functions in Arabidopsis development
J. Exp. Bot., October 8, 2009; (2009) erp304v1.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
C.-Y. Kang, H.-L. Lian, F.-F. Wang, J.-R. Huang, and H.-Q. Yang
Cryptochromes, Phytochromes, and COP1 Regulate Light-Controlled Stomatal Development in Arabidopsis
PLANT CELL, September 1, 2009; 21(9): 2624 - 2641.
[Abstract] [Full Text] [PDF]

Home page
 GeneticsHome page
A. Castillon, H. Shen, and E. Huq
Blue Light Induces Degradation of the Negative Regulator Phytochrome Interacting Factor 1 to Promote Photomorphogenic Development of Arabidopsis Seedlings
Genetics, May 1, 2009; 182(1): 161 - 171.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
T. Usami, T. Matsushita, Y. Oka, N. Mochizuki, and A. Nagatani
Roles for the N- and C-Terminal Domains of Phytochrome B in Interactions Between Phytochrome B and Cryptochrome Signaling Cascades
Plant Cell Physiol., March 1, 2007; 48(3): 424 - 433.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
Y. Sang, Q.-H. Li, V. Rubio, Y.-C. Zhang, J. Mao, X.-W. Deng, and H.-Q. Yang
N-Terminal Domain-Mediated Homodimerization Is Required for Photoreceptor Activity of Arabidopsis CRYPTOCHROME 1
PLANT CELL, May 1, 2005; 17(5): 1569 - 1584.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
J. M. Ward, C. A. Cufr, M. A. Denzel, and M. M. Neff
The Dof Transcription Factor OBP3 Modulates Phytochrome and Cryptochrome Signaling in Arabidopsis
PLANT CELL, February 1, 2005; 17(2): 475 - 485.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
T. Usami, N. Mochizuki, M. Kondo, M. Nishimura, and A. Nagatani
Cryptochromes and Phytochromes Synergistically Regulate Arabidopsis Root Greening under Blue Light
Plant Cell Physiol., December 15, 2004; 45(12): 1798 - 1808.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
K. A. Franklin and G. C. Whitelam
Light signals, phytochromes and cross-talk with other environmental cues
J. Exp. Bot., January 2, 2004; 55(395): 271 - 276.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
S. L. DeBlasio, J. L. Mullen, D. R. Luesse, and R. P. Hangarter
Phytochrome Modulation of Blue Light-Induced Chloroplast Movements in Arabidopsis
Plant Physiology, December 1, 2003; 133(4): 1471 - 1479.
[Abstract] [Full Text]

Home page
 Plant CellHome page
K. A. Franklin, S. J. Davis, W. M. Stoddart, R. D. Vierstra, and G. C. Whitelam
Mutant Analyses Define Multiple Roles for Phytochrome C in Arabidopsis Photomorphogenesis
PLANT CELL, September 1, 2003; 15(9): 1981 - 1989.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
K. J. Halliday and G. C. Whitelam
Changes in Photoperiod or Temperature Alter the Functional Relationships between Phytochromes and Reveal Roles for phyD and phyE
Plant Physiology, April 1, 2003; 131(4): 1913 - 1920.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
T. Mockler, H. Yang, X. Yu, D. Parikh, Y.-c. Cheng, S. Dolan, and C. Lin
Regulation of photoperiodic flowering by Arabidopsis photoreceptors
PNAS, February 18, 2003; 100(4): 2140 - 2145.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
P. A. Salome, T. P. Michael, E. V. Kearns, A. G. Fett-Neto, R. A. Sharrock, and C. R. McClung
The out of phase 1 Mutant Defines a Role for PHYB in Circadian Phase Control in Arabidopsis
Plant Physiology, August 1, 2002; 129(4): 1674 - 1685.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
S. Christensen, E. LaVerne, G. Boyd, and J. Silverthorne
Ginkgo biloba Retains Functions of Both Type I and Type II Flowering Plant Phytochrome
Plant Cell Physiol., July 15, 2002; 43(7): 768 - 777.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
M. Ahmad, N. Grancher, M. Heil, R. C. Black, B. Giovani, P. Galland, and D. Lardemer
Action Spectrum for Cryptochrome-Dependent Hypocotyl Growth Inhibition in Arabidopsis
Plant Physiology, June 1, 2002; 129(2): 774 - 785.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
C. Lin
Blue Light Receptors and Signal Transduction
PLANT CELL, May 1, 2002; 14(90001): S207 - 225.
[Full Text] [PDF]

Home page
 J Biol RhythmsHome page
M. J. Yanovsky, M. A. Mazzella, G. C. Whitelam, and J. J. Casal
Resetting of the Circadian Clock by Phytochromes and Cryptochromes in Arabidopsis
J Biol Rhythms, December 1, 2001; 16(6): 523 - 530.
[Abstract] [PDF]

Home page
 Plant CellHome page
H.-Q. Yang, R.-H. Tang, and A. R. Cashmore
The Signaling Mechanism of Arabidopsis CRY1 Involves Direct Interaction with COP1
PLANT CELL, December 1, 2001; 13(12): 2573 - 2587.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
A. E. Pepper, M.-s. Seong-Kim, S. M. Hebst, K. N. Ivey, S.-J. Kwak, and D. E. Broyles
shl, a New Set of Arabidopsis Mutants with Exaggerated Developmental Responses to Available Red, Far-Red, and Blue Light
Plant Physiology, September 1, 2001; 127(1): 295 - 304.
[Abstract] [Full Text] [PDF]

Home page
 DevelopmentHome page
M. A. Mazzella, P. D. Cerdan, R. J. Staneloni, and J. J. Casal
Hierarchical coupling of phytochromes and cryptochromes reconciles stability and light modulation of Arabidopsis development
Development, June 15, 2001; 128(12): 2291 - 2299.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
H. E. Boccalandro, C. A. Mazza, M. A. Mazzella, J. J. Casal, and C. L. Ballare
Ultraviolet B Radiation Enhances a Phytochrome-B-Mediated Photomorphogenic Response in Arabidopsis
Plant Physiology, June 1, 2001; 126(2): 780 - 788.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
C. Long and M. Iino
Light-Dependent Osmoregulation in Pea Stem Protoplasts. Photoreceptors, Tissue Specificity, Ion Relationships, and Physiological Implications
Plant Physiology, April 1, 2001; 125(4): 1854 - 1869.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
L. Chun, A. Kawakami, and D. A. Christopher
Phytochrome A Mediates Blue Light and UV-A-Dependent Chloroplast Gene Transcription in Green Leaves
Plant Physiology, April 1, 2001; 125(4): 1957 - 1966.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
L. Hennig, C. Poppe, U. Sweere, A. Martin, and E. Schäfer
Negative Interference of Endogenous Phytochrome B with Phytochrome A Function in Arabidopsis
Plant Physiology, February 1, 2001; 125(2): 1036 - 1044.
[Abstract] [Full Text]

Home page
 Plant CellHome page
P. F. Devlin and S. A. Kay
Cryptochromes Are Required for Phytochrome Signaling to the Circadian Clock but Not for Rhythmicity
PLANT CELL, December 1, 2000; 12(12): 2499 - 2510.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
M. T. Osterlund, N. Wei, and X. W. Deng
The Roles of Photoreceptor Systems and the COP1-Targeted Destabilization of HY5 in Light Control of Arabidopsis Seedling Development
Plant Physiology, December 1, 2000; 124(4): 1520 - 1524.
[Full Text]

Home page
 Plant Physiol.Home page
C. Fankhauser and J. Chory
RSF1, an Arabidopsis Locus Implicated in Phytochrome A Signaling
Plant Physiology, September 1, 2000; 124(1): 39 - 46.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
J. W. Reed, P. Nagpal, R. M. Bastow, K. S. Solomon, M. J. Dowson-Day, R. P. Elumalai, and A. J. Millar
Independent Action of ELF3 and phyB to Control Hypocotyl Elongation and Flowering Time
Plant Physiology, April 1, 2000; 122(4): 1149 - 1160.
[Abstract] [Full Text]

Home page
 Genes Dev.Home page
M. M. Neff, C. Fankhauser, and J. Chory
Light: an indicator of time and place
Genes & Dev., February 1, 2000; 14(3): 257 - 271.
[Full Text]

Home page
 Proc. Natl. Acad. Sci. USAHome page
M. M. Neff, S. M. Nguyen, E. J. Malancharuvil, S. Fujioka, T. Noguchi, H. Seto, M. Tsubuki, T. Honda, S. Takatsuto, S. Yoshida, et al.
Inaugural Article: BAS1: A gene regulating brassinosteroid levels and light responsiveness in Arabidopsis
PNAS, December 21, 1999; 96(26): 15316 - 15323.
[Abstract] [Full Text] [PDF]

Home page
 ScienceHome page
D. E. Somers, P. F. Devlin, and S. A. Kay
Phytochromes and Cryptochromes in the Entrainment of the Arabidopsis Circadian Clock
Science, November 20, 1998; 282(5393): 1488 - 1490.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1998 by the American Society of Plant Biologists