Describe the structure of ligule
WebThe pistil (female structure) is composed of two carpels, which are united to form a compound ovary with a terminal style. There is usually a nectar-producing region (nectary) in the form of a minute ring surrounding the style atop the ovary. The ovary has only one locule (seed cavity), with a single ovule arising from the base. WebLigules are tiny appendages on the upper (adaxial) side of the leaf (both vegetative and reproductive), near the leaf base ( Figures 4.16, 4.18D,H, 4.19D ). The function of …
Describe the structure of ligule
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WebDespite the fact that most reports describe the ligule as a thin, white or colourless, papery structure, such workers as Glück (1901) and Neumann (1938) stated that chlorophyll was present. Percival (1921) went further and claimed the presence of chloroplasts in some cells of the wheat ligule. There appear to be no transmission electron The ligule is part of the leaf that is found at the junction of the blade and sheath of the leaf. It may take several forms, but it is commonly some form of translucent membrane or a fringe of hairs. The membranous ligule can be very short 1–2 mm (Kentucky bluegrass, Poa pratensis) to very long 10–20 mm (Johnson grass, Sorghum halepense), it can also be smooth on the edge or ve…
WebThe ligule ofSelaginella kraussiana shows active incorporation of tritiated glucose in the central region; particularly into the Golgi system, but also into endoplasmic reticulum, … WebJan 15, 2013 · The ligule is an adaxial structure found at the blade-sheath boundary of most grass leaves. The main function of a ligule is to repel water from entering the space between the leaf sheath and stem, where axillary buds form. ... Here, we describe the characterization and cloning of the semi-dominant Liguleless narrow-Reference (Lgn-R) …
WebJun 28, 2008 · Great variety in ligule abaxial surface anatomy was found but internally all ligules so studied possess a tripartite structure of two uniseriate epidermes enclosing a … WebThe ligule was a characteristic feature of the extinct giant lycophytes such as Lepidodendron. quillwort Isoetes species have a plant body that is relatively small, consisting of a short compact axis (corm) and tufts of …
WebJun 28, 2008 · Structure and function in the grass ligule: mitochrondria and microfaodies in the ligule of Lolium temulentum L., an ultrastructural and cytochemical study. Journal of Experimental Botany. 36:
WebThese observations suggest that common mechanisms are utilized to initiate leaves and branches are redeployed to regulate ligule and auricle development from leaf primordia. A major step in understanding morphogenesis of these structures requires knowing when and how the auricle forms relative to the ligule. iot education picturesWebligule ( ˈlɪɡjuːl) or ligula n 1. (Botany) a membranous outgrowth at the junction between the leaf blade and sheath in many grasses and sedges 2. (Botany) a strap-shaped corolla, such as that of a ray floret in the daisy [C19: via French, from Latin ligula strap, variant of lingula, from lingua tongue] iot embsky.comWebJan 1, 1985 · Abstract. Aspects of the structure and ultrastructure of the membranous ligule of mature leaves of Lolium temulentum L. are described. In transverse section the ligule was lens-shaped and wedge-shaped in longitudinal section, 6 or 7 cells wide near the base and 1 or 2 cells wide at the edges. iot edge version listWebThe maize ligule is an adaxial membranous structure on the leaf that develops at the boundary of the sheath and blade. The ligule and the associated auricle are dispensable structures, amenable to genetic manipulation. We present here a genetic analysis of liguleless1 (lg1) and liguleless2 (lg2), the two genes known to be uniquely necessary for ... on \u0026 off the fire sceneWebDownload scientific diagram Illustration of barley leaf characteristics (A) Structure of a barley leaf, comprised of the sheath and blade, the ligule and auricles; the insertion angle at the ... iot-enabled distributed energyWebJan 1, 2013 · Many key recognizing characters are present in the collar region, the junction of the leaf blade and leaf sheath, where the ligule resides. The paper aims to determine the type, shape, structure ... iot edge version supportWebAug 23, 2010 · The ligule is a membranous structure present on the adaxial leaf surface at its junction with the stem (Singh et al., 2010). This feature dates back to the middle Devonian homosporous lycopsids, e ... iot-edge with python