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An Outlook of Plant Circadian Rhythms towards the light Cycle and Surrounding Environment of Plants

Nitu Pathak


Behaviors showing rhythms include leaf movement, growth, germination, stomatal/gas exchange, enzyme activity, photosynthetic activity, and fragrance emission, among others. Circadian rhythms takes place as a plant entrains to coordinate with the light cycle of its surrounding environment.

Keywords: light cycle, circadian rhythms, environment and surroundings.

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Engelmann, W., and Johnsson, A. (1998). Rhythms in organ movement. In Biological Rhythms and Photoperiodism in Plants, P.J. Lumsden and A.J. Millar, eds (Oxford: BIOS Scientific Publishers), pp. 35–50.

Costa, R., Peixoto, A.A., Barbujani, G., and Kyriacou, C.P. (1992). A latitudinal cline in a Drosophila clock gene. Proc. R. Soc. Lond. B. Biol. Sci. 250, 43–49.

Fowler, S.G., Cook, D., and Thomashow, M.F. (2005). Low temperature induction of Arabidopsis CBF1, 2, and 3 is gated by the circadian clock. Plant Physiol. 137, 961–968.

Garner, W.W., and Allard, H.A. (1920). Effect of the relative length of day and night and other factors of the environment on growth and reproduction in plants. J. Agric. Res. 18, 553–606.

Green, R.M., Tingay, S., Wang, Z.-Y., and Tobin, E.M. (2002). Circadian rhythms confer a higher level of fitness to Arabidopsis plants. Plant Physiol. 129, 576–584.

Covington, M.F., Panda, S., Liu, X.L., Strayer, C.A., Wagner, D.R., and Kay, S.A. (2001). ELF3 modulates resetting of the circadian clock in Arabidopsis. Plant Cell 13, 1305–1316.

Feldman, J.F., and Hoyle, M. (1973). Isolation of circadian clock mutants of Neurospora crassa. Genetics 75,605–613.

Kaczorowski, K.A., and Quail, P.H. (2003). Arabidopsis PSEUDO-RESPONSE REGULATOR7 is a signaling intermediate in phytochrome-regulated seedling deetiolation and phasing of the circadian clock. Plant Cell 15,2654–2665.

Liu, X.L., Covington, M.F., Fankhauser, C., Chory, J., and Wagner, D.R. (2001). ELF3 encodes a circadian clock–regulated nuclear protein that functions in an Arabidopsis PHYB signal transduction pathway. Plant Cell13, 1293–1304.

Corbesier, L., and Coupland, G. (2005). Photoperiodic flowering of Arabidopsis: Integrating genetic and physiological approaches to characterization of the floral stimulus. Plant Cell Environ. 28, 54–66.

Alabadí, D., Oyama, T., Yanovsky, M.J., Harmon, F.G., Más, P., and Kay, S.A. (2001). Reciprocal regulation between TOC1 and LHY/CCA1 within the Arabidopsis circadian clock. Science 293, 880–883.

Alabadí, D., Yanovsky, M.J., Más, P., Harmer, S.L., and Kay, S.A. (2002). Critical role for CCA1 and LHY in maintaining circadian rhythmicity in Arabidopsis. Curr. Biol. 12, 757–761.

Arabidopsis Genome Initiative (2000). Analysis of the genome sequence of the flowering plant Arabidopsis thaliana. Nature 408, 796–815.

Nakamichi, N., Kita, M., Ito, S., Sato, E., Yamashino, T., and Mizuno, T. (2005a). The Arabidopsis pseudo-response regulators, PRR5 and PRR7, coordinately play essential roles for circadian clock function. Plant Cell Physiol. 46, 609–619.


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