Summary
The architecture of higher plants is largely determined by the size, shape, and arrangement of the shoot organs that are formed in a reiterative manner by the shoot apical meristem. Immense variations in plant architecture, due to altered shape, size, and position of the individual shoot unit, has significance in adaptation as well as domestication of crop plants. The Arabidopsis erecta mutant displays a dramatic alteration in inflorescence architecture and organ shape. Morphometric analysis of representative erecta alleles with different severities revealed that ERECTA regulates pedicel length and plant size in a quantitative manner but has complex effects on floral organ size: The organs of erecta mutants contain a lesser number of larger, and isotropically expanded cortex cells, suggesting that ERECTA is required for a coordinated cell proliferation or cell expansion within the same tissue layer (i.e. cortex). The molecular identity of ERECTA as a leucine-rich repeat receptor-like kinase (LRR-RLK) is consistent with its predicted role in cell-cell coordination.
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References
Bowman, J.L. (1993). Arabidopsis: An Atlas of Morphology and Development. New York: Springer-Verlag.
Bradley, D., Ratcliffe, O., Vincent, C., Carpenter, R. and Coen, E. (1997). Inflorescence commitment and architecture in Arabidopsis. Science, 275, 80–83.
Clark, S.E., Williams, R.W. and Meyerowitz, E.M. (1997). The CLAVATAI gene encodes a putative receptor kinase that controls shoot and floral meristem size in Arabidopsis. Cell, 89, 575–585.
Doebley, J., Stec, A. and Hubbard, L. (1997). The evolution of apical diminance in maize. Nature, 386, 485–488.
Douglas, S.J., Chuck, G., Dengler, R.E., Pelecanda, L. and Riggs, C.D. (2002). KNAT1 and ERECTA regulate inflorescence architecture in Arabidopsis. Plant Cell, 14, 547–558.
Galweiler, L., Guan, C., Muller, A., Wisman, E., Mendgen, K., Yephremov, A. and Palme, K. (1998). Regulation of polar auxin transport by AtPIN1 in Arabidopsis vascular tissue. Science, 282, 2226–2230.
Jones, D.A. and Jones, J.D.G. (1997). The role of Leucine-rich repeats in plant defences. Advances in Botanical Research incorporating Advances us Plant Pathology, 24, 90–167.
Juenger, T., Purugganan, M. and Mackay, T.F. (2000). Quantitative trait loci for floral morphology in Arabidopsis thaliana. Genetics, 156, 1379–1392.
Kaya, H., Shibahara, K.I., Taoka, K.I., Iwabuchi, M., Stillman, B. and Araki, T. (2001). FASCIATA genes for chromatin assembly factor-1 in arabidopsis maintain the cellular organization of apical meristems. Cell, 104, 131–142.
Komeda, Y., Takahashi, T. and Hanzaw-a, Y. (1998). Development of inflorescneces in Arabidopsis thaliana. J.Plant Res, 111, 283–288.
Krizek, B.A. (1999). Ectopic expression AINTEGUMENTA in Arabidopsis plants results in increased growth of floral organs. Developmental Genetics, 25, 224–236.
Lease, K.A., Lau, N.Y., Schuster, R.A., Toni, K.U. and Walker, J.C. (2001). Receptor serine/threonine protein kinases in signaling: analysis of the Erecta receptor-like kinase of Arabidopsis thaliana. New Phytol, 151, 133–144.
Lease, K.A., Wen, J., Li, J., Doke, J.T., Liscum, E. and Walker, J.C. (2001). A mutant Arabidopsis heterotrimeric G-protein beta subunit affects leaf, flower, and fruit development. Plant Cell, 13, 2631–2641.
Leyser, H. and Furrier, I. (1992). Characterization of 3 shoot apical meristem mutants of Arabidopsis thaliana. Development, 116, 397–403.
Mizukami, Y. and Fischer, R. (2000). Plant organ size control: AINTEGUMENTA regulates growth and cell numbers during organogenesis. Proc Nati Acad Sci USA, 97, 942–947.
Okada, K., Ueda, J., Komaki, M.K., Bell, C.J. and Shimura, Y. (1991). Requirement of the Auxin Polar Transport System in Early Stages of Arabidopsis Floral Bud Formation. Plant Cell, 3, 677–684.
Reinhardt, D., Mandel, T. and Kuhlemeier, C. (2000). Auxin regulates the initiation and radial position of plant lateral organs. Plant Cell, 12, 507–518.
Shu, G., Amaral, W., Hiieman, L.C. and Baum, D.A. (2000). LEAFY and the evolution of rosette flowering in violet cress (Jonopsidium acaule, Brassicaeeae). Ara, I Bot, 87, 634–641.
Smyth, D.R., Bowman. J.L. and Meyerowitz, E.M. (1990). Early, flower development in Arabidopsis. Plant Cell, 2, 755–767.
Suzuki, M., Takahashi, T. and Komeda, Y. (2002). Formation of corymb-like inflorescences due to delay in bolting and flower development in the corymbosa2 mutant of Arabidopsis. Plant Cell Physiol, 43, 298–306.
Torii, K.U., Mitsukawa, N., Oosumi, T., Matsuura, Y., Yokoyama, P. Whittier, R.F. and Komeda, Y. (1996). The Arabidopsis ERECTA gene encode, a putative receptor protein kinase with extracellular leucine-rich repeats. Plant Cell, 8. 735–746.
Venglat, S.P., Dumonceaux, T., Rozwadowski, K., Parnell, L., Babic, V., Keller, W., Martienssen, R., Selvaraj, G. and Datla, R. (2002). The homeobox gene BREVIPEDICELLUS is a key regulator of inflorescence architecture in Arabidopsis.. Proc Nati Aced Sci USA, 99, 4730–4735.
Weberling, F. (1989). Morphology of Flowers and Inflorescences. Cambridge: Cambridge University Press.
Weigel, D. and Nilsson, O. (1995). A developmental switch sufficient for flower initiation in diverse plants. Nature, 377, 495–500.
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Torii, K.U., Hanson, L.A., Josefsson, C.A.B., Shpak, E.D. (2003). Regulation of Inflorescence Architecture and Organ Shape by the ERECTA Gene in Arabidopsis. In: Sekimura, T., Noji, S., Ueno, N., Maini, P.K. (eds) Morphogenesis and Pattern Formation in Biological Systems. Springer, Tokyo. https://doi.org/10.1007/978-4-431-65958-7_13
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DOI: https://doi.org/10.1007/978-4-431-65958-7_13
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