Not logged in sepals. Simons, K.J., Fellers, J.P., Trick, H.N., Zhang, Z., Tai, Y.-S., Gill, B.S., Faris, J.D. Plant Syst. J. Bot. 2010. A conserved mechanism of bract suppression in the grass family. The flat stems and the coarsely tufted panicle. Whereas leaves are produced in a distichous pattern, with the primordia separated from each other by an angle of 180°, inflorescence branches are produced in a spiral in most species. 2005. The grass inflorescence is striking not only for its beauty and diversity, but also for its developmental complexity. The existence of compound inflorescences is not in itself a problem. Melbourne, Australia: CSIRO. Sobre politelia en las inflorescencias de Poaceae. The maize, Chuck, G., Meeley, R., Hake, S. 2008. Collar (Orchard Grass) Reed Canary Grass. Beitr. Bommert, P., Satoh-Nagasawa, N., Jackson, D., Hirano, H.Y. USA 105: 12915–12920. corolla. The problems with descriptive terminology have two sources. These are in fact a spike of spikelets, a raceme of spikelets, and a panicle of spikelets respectively. Chuck, G., Meeley, R., Hake, S. 1998. Judziewicz, E.J., Clark, L.G., Londoño, X., Stern, M.J. 1999. Stevens, P.F. Hernández, J.C., Rua, G. 1992. 2006. Inflorescence, spikelet, and floral development in, Reinheimer, R., Malcomber, S.T., Kellogg, E.A. Yan, L., Loukolanov, A., Tranquilli, G., Helguera, M., Fahima, T., Dubcovsky, J. 2013. Perreta, M.G., Ramos, J.C., Vegetti, A.C. 2009. 2002. Reproductive development of the apex of. Curr. Beitr. A gene controlling the number of primary rachis branches also controls the vascular bundle formation and hence is responsible to increase the harvest index and grain yield of rice. Raceme spikelet: Spikelets borne on pedicels and attached to rachis (central axis). Poaceae - Duration: 12:17. Flowers of Poaceae are characteristically arranged in spikelets, each having one or more florets. 1 – glume, 2 – lemma, 3 – awn, 4 – palea, 5 – lodicules, 6 – stamens, 7 – ovary, 8 – styles. Distinct roles of the SEPALLATA gene. 2011. The control of axillary meristem fate in the maize. 2004. Raceme: When peduncle (or main axis) is elongated and flowers … Curr. 2009. flower calyx. 110: 111–126. 2007. Ann. 2003. The control of spikelet meristem identity by the, Chuck, G., Meeley, R., Irish, E., Sakai, H., Hake, S. 2007. It consists of two glumes and one or more florets. Morphological diversity and genetic regulation of inflorescence abscission zones in grasses. Kellogg, E.A. Nature 441: 227–230. The relationship between auxin transport and maize branching. Amer. 2001 onward. Parts of a typical grass (based on Bromus). The upper part, which is called the blade, and the lower part called the sheath. Inflorescence structure in species of, Klein, J., Saedler, H., Huijser, P. 1996. Cambridge, Massachusetts: Harvard University Press. A TCP transcription factor, Baumel, A., Ainouche, M.L., Bayer, R.J., Ainouche, A.K., Misset, M.T. Ikeda, K., Nagasawa, N., Nagato, Y. Theor. A trehalose metabolic enzyme controls inflorescence architecture in maize. Reconstructing the evolutionary history of paralogous, Preston, J.C., Kellogg, E.A. 149: 38–45. Ikeda, K., Ito, M., Nagasawa, N., Kyozuka, J., Nagato, Y. Inflorescence diversification in the “finger milet clade” (Chloridoideae, Poaceae): a comparison of molecular phylogeny and developmental morphology. Feddes Repert. a unit of grass inflorescence. —1. Grass architecture: genetic and environmental control of branching. The bamboos: a fresh perspective. 1989. Plant Phys. Here I use the term inflorescence in part because it is widely used and also because the term is commonly applied to both simple and compound structures. Heterochronic development of the floret meristem determines grain number per spikelet in diploid, tetraploid and hexaploid wheats. Houston, K., McKim, S.M., Comadran, J., Bonar, N., Druka, I., Uzrek, N., Cirillo, E., Guzy-Wrobelska, J., Collins, N.C., Halpin, C., Hansson, M., Dockter, C., Druka, A., Waugh, R. 2013. 2014. Leaf rolling controlled by the homeodomain leucine zipper class IV gene, © Springer International Publishing Switzerland 2015, https://doi.org/10.1007/978-3-319-15332-2_2, The Families and Genera of Vascular Plants. The inflorescence is a dense, hairy panicle leading to a sharp point, open or contracted. Kurtziana 21: 275–278. Expression level of, Judziewicz, E.J., Soderstrom, T.R. Gene networks controlling the initiation of flower development. Development 130: 3841–3850. Kobayashi, K., Maekawa, M., Miyao, A., Hirochika, H., Kyozuka, J. The morphology of woody bamboos. Mol. New York: Academic Press. The spikelet is composed of one to several f… When the spikelets are attached to the rachis with short pedicels, the inflorescence is termed as raceme. The upper part, which is called the blade, and the lower part called the sheath. Genetic control of branching in foxtail millet. Doust, A.N., Mauro-Herrera, M., Francis, A.D., Shand, L.C. Map-based cloning of the, Preston, J.C., Hileman, L.C. … Inflorescence diversification in the panicoid “bristle grass” clade (Paniceae, Poaceae): evidence from molecular phylogenies and developmental morphology. Biol. Each flower is borne on a short stalk, called a pedicel. I. Jena: Gustav Fischer. 2010. The structures containing the flowers are called SPIKELETS. Natl. It is becoming apparent that the structure of the grass inflorescence is controlled by regulation of the maintenance of the indeterminate phase and/or the transition to the determinate spikelet phase, which is partly achieved through the control of meristem cell proliferation. 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