3. (Concise… Pulvinus is the swollen leaf base while petiole is the leaf stalk. Swollen leaf base is called (a) Pulvinus ← Prev Question. A pulvinus (pl. Interpretation Translation  pulvinus. Pulvinus. John Schumacher, ... Roger K.W. When leaves produce food, they are transported to the other parts of the plant through the petiole. To anesthetize the ramus tori digitalis, a needle is inserted immediately proximal and axial to the proximal margin of the cartilage of the foot, midway between the palmar border of the deep digital flexor tendon and the palmar extent of the cartilage of the foot, and is directed parallel to the slope of the dorsal hoof wall and the long axis of the digit (Figure 9-9). What is Pulvinus These movements are believed to arise from periodic volume changes of the cells of the leaf motor organs (pulvini) and variations in osmotic forces due to K+-ion fluxes across the plasma membrane. 0. NMR analyses indicate that either our sample contains a jasmonate, perhaps co-fractionating, or is a substance with certain similar groupings. In both plants, the change in angular orientation depends on movement of water, which in turn is based on movement of an osmotically active agent, which we have shown to be the K+ ion (Satter and Galston, 1971a; Satter et al., 1974). Flower close-up, showing tepals and petaloid staminodes, forming an anterior labellum. By continuing you agree to the use of cookies. 2. I. 1. When performed as described by Langfeld and Hertsch,18 anesthesia of the ramus tori digitalis may actually anesthetize the palmar digital nerve distal to the site where the palmar digital nerve gives off the superficial branches to the heel region of the foot, similar to the effect of analgesia of the distal interphalangeal joint (see discussion under Analgesia of the Distal Interphalangeal Joint). A cushion, bolster, squab, pillow to sit or lie upon: mane pulvinum, Plaut. F. Flower close-up (removed), showing inferior ovary, outer and inner tepals, and showy, petaloid staminodes. It is seen in Fabaceae family. Degree in Plant Science, M.Sc. Furthermore, petioles are the structures that are responsible for the leaf falls in deciduous plants during the fall season. The Zingiberaceae are a large family, usually classified into four tribes: Hedychieae (leaves parallel to rhizome, lateral staminodes petaloid, not fused to labellum), Zingibereae (style exserted past anther and enveloped by elongate anther crest), Alpinieae (leaves perpendicular to rhizome, lateral staminodes absent or small and fused to labellum), and Globbeae (filament long-exserted and arched, gynoecium l-locular). Bud (axillary Or Terminal) C. Stipule D. Petiole E. Lenticel 3. The plant is Elaeocarpus grahamii. Whole plant, erect aerial stem with inflorescence. A. Smith, in Equine Podiatry, 2007. noun A joint on a plant leaf or petiole that may swell and cause movement of the leaf or leaflet The leaf movements are facilitated by the pulvinus due to the changes in turgor pressure of motor cells. 4. The leaf stem in this photo also has a swelling where it joins the twig. Study the following statements and select the correct option (A) Buds are present in the axil of leaflets of the compound leaf (B) Pulvinus leaf-base is present in some leguminous plants (C) In Alstonia,the petioles expand,become green and synthesize food (D) Opposite phyllotaxy is seen in guava. Some plants do not have pulvini and petioles. Both pulvinus and petiole are two structures related to leaves. Pulvinus is the swelling at the base of a leaf. Imaging of leaf or cotyledon movements is routinely used as a direct read-out of clock function in Arabidopsis (Edwards and Millar, 2007). The pervasiveness of circadian regulation in plants was fully revealed by analyses of changes in the plant transcriptome over the course of the circadian cycle. In Albizzia, the movement of the tertiary pulvini is due to changing turgor pressure patterns of ventral and dorsal motor cells (Satter, Sabnis and Galston, 1970). See more. What Is The Broad,flattened, Photosynthetic Portion Of A Leaf Called? If the leaf of Mini osa or Desmodium be examined, it will be seen that at the base of each leaflet and each leaf, just at the junction with the respective axes, is a swelling known as a pulvinus. For example, in the runner bean the pulvinus is turgid during the day and supports the petiole, so that the leaf … For example, in the runner bean the pulvinus is turgid during the day and supports the … The clock also controls genes involved in aspects of development such as flowering and growth, and many aspects of responses to pathogens and biotic and environmental stresses such as extremes of temperature, osmoticum, salinity, or water deprivation. Furthermore, the ingredients necessary to carry out photosynthesis by leaves are supplied via the petioles. It is the motor organ for leaf movement. (ginger-lily). Ion channels are understood to be the conduits for the movement of K+ (Koller, 2000), and water channels (aquaporins) serve as the water conduits through the pulvinule cell membranes (Moshelion et al., 2002; Uehlein and Kaldenhoff, 2008). 1300 species. ). 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