Audiopedia 5,476 views. 104: 243–251. A schematic representation of a grass inflorescence is shown. 2010. 2004. It consists of two glumes and one or more florets. Opinion Pl. 1A). A trehalose metabolic enzyme controls inflorescence architecture in maize. 2006. The bamboos. 2012. Reinheimer, R., Vegetti, A.C. 2008. 2003. grass inflorescence. pp 25-38 | Judziewicz, E.J., Clark, L.G., Londoño, X., Stern, M.J. 1999. Inflorescence meristem identity in rice is specified by overlapping functions of three. Nakagawa, M., Shimamoto, K., Kyozuka, J. Res. 46: 69–78. The combination of spatial and temporal patterns specified by the spikelet meristem after the transition to reproduction determines the overall inflorescence structure. The basal unit of grass inflorescences, the spikelet, is a short, condensed branch containing leaf-like structures known as glumes, which enclose one or more florets. 1999. There are two parts to a grass leaf. Vegetti, A.C., Pensiero, J.F. Mus. Komatsu, M., Chujo, A., Nagato, Y., Shimamoto, K., Kyozuka, J. Biol. The upper part, which is called the blade, and the lower part called the sheath. … Satoh-Nagasawa, N., Nagasawa, N., Malcomber, S., Sakai, H., Jackson, D. 2006. a unit of grass inflorescence. Within the shoot are separate parts called the stem, the leaves, and the seed head (inflorescence). Formation of panicles and hermaphroditic florets in wild-rice. Development and structure of the grass inflorescence. After transition from the vegetative phase to the reproductive phase, the SAM converts into the IM, which initiates the BMs and forms the main axis of the inflorescence (Fig. 149: 38–45. 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. Watson, L., Dallwitz, M.J. 1992 onward. Ikeda, K., Nagasawa, N., Nagato, Y. SQUAMOSA-PROMOTER BINDING PROTEIN 1 initiates flowering in, Preston, J.C., Kellogg, E.A. Darwiniana 44: 7–17. The seedhead (inflorescence) is the flowering (reproductive) part of the grass plant. Gene networks controlling the initiation of flower development. Bot. 1981. Structure of the grass inflorescence. 2006. Developmental gene evolution and the origin of grass inflorescence diversity. Weir, C.E., Dale, H.M. 1960. Amer. Muszynski, M.G., Dam, T., Li, B., Shirbroun, D.M., Hou, Z., Bruggemann, E., Archibald, R., Ananiev, E.V., Danilevskaya, O.N. pp. Apikale Reduktionen im Infloreszenzbereich der Gramineae. Our understanding of the genes and networks that regulate grass inflorescence architecture has dramatically expanded due to significant advances in resources and tools. This service is more advanced with JavaScript available, Flowering Plants. 120: 875–893. 57: 431–449. J. Bot. A genomic and expression compendium of the expanded PEBP gene family from maize. Plant Syst. Reinheimer, R., Zuloaga, F.O., Vegetti, A.C., Pozner, R. 2009. Weberling, F. 1989. Plant J. Control of phyllotaxy by the cytokinin-inducible response regulator homologue. 2009. By definition a grass spikelet is the unit of the inflorscence of a grass, a member of the Poaceae or Gramineae family of plants. 2002. Leaflike parts that cover and protect the flower bud. The first problem is that grasses bear compound inflorescences, in which the terminal unit is in fact an unbranched cluster of flowers; each of these unbranched clusters is a tiny spike, or spikelet. 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. Tipología de la inflorescencia de. J. Bot. The bamboos: a fresh perspective. Collar (Orchard Grass) Reed Canary Grass. 61: 481–520. The grass inflorescence is striking not only for its beauty and diversity, but also for its developmental complexity. The role of. Monocots: systematics and evolution. Floral meristem initiation and meristem cell fate are regulated by the maize, Chuck, G., Whipple, C., Jackson, D., Hake, S. 2010. 251–267. Cambridge: Cambridge University Press. flower calyx. 1993. When the spikelets are attached to the rachis with short pedicels, the inflorescence is termed as raceme. The flat stems and the coarsely tufted panicle. Zhang, L., Zhao, Y.-L., Gao, L.-F., Zhao, G.-Y., Zhou, R.-H., Zhang, B.-S., Jia, J.-Z. A conserved mechanism of bract suppression in the grass family. Wills, D.M., Whipple, C.J., Takuno, S., Kursel, L.E., Shannon, L.M., Ross-Ibarra, J., Doebley, J.F. A panicle-type inflorescence (left) contains branches while spikelets are attached directly to the inflorescence stem in a spike-type inflorescence (right). 2007. Differentiation in the grass inflorescence. Galinat, W. 1959. 2006. Science 312: 1392–1396. 1 – glume, 2 – lemma, 3 – awn, 4 – palea, 5 – lodicules, 6 – stamens, 7 – ovary, 8 – styles. Sajo, M.G., Longhi-Wagner, H., Rudall, P.J. Kellogg, E.A. 2007. Rev. The shoot apical meristem of grasses produces the primary branches of the inflorescence, controlling inflorescence architecture and hence seed production. 1999. Vollbrecht, E., Springer, P.S., Goh, L., Buckler, E.S., Martienssen, R. 2005. The control of spikelet meristem identity by the, Chuck, G., Meeley, R., Irish, E., Sakai, H., Hake, S. 2007. Doust, A.N. 2012. Inflorescence diversification in the panicoid “bristle grass” clade (Paniceae, Poaceae): evidence from molecular phylogenies and developmental morphology. Kobayashi, K., Maekawa, M., Miyao, A., Hirochika, H., Kyozuka, J. Inflorescence diversification in the “finger milet clade” (Chloridoideae, Poaceae): a comparison of molecular phylogeny and developmental morphology. 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