Cytokinin apical dominance
WebThe term apical dominance refers to the inhibition of growth of subtending lateral (axillary) buds by a growing shoot apex. Some degree of apical dominance is found in all seed plants, and the … WebAugust 1997] CLINE—C ONCEPTS AND TERMINOLOGY OF APICAL DOMINANCE 1065 Fig. 1. Developmental stages of apical dominance before and after release by decapitation of the shoot apex. Stage II may vary. If it is negligible as with Arabidopsis or greenhouse-grown Coleus (Cline, 1996), then apical dominance is essentially nonexistent and the …
Cytokinin apical dominance
Did you know?
WebNov 8, 2006 · Apical dominance is the term used to describe the control of the shoot tip over axillary bud outgrowth (e.g. Cline, 1997). It is best demonstrated via shoot tip removal (decapitation), which leads to apical dominance. ... Effect of apex excision and replacement by 1-naphthylacetic acid on cytokinin concentration and apical … WebFeb 17, 2006 · Apical dominance is one of the classical developmental events believed to be controlled by cross-talk between auxin and CK (Cline, 1991; Leyser, 2003; Shimizu …
WebCytokinin concentrations are high in the meristematic regions and in areas of continuous growth, such as the root subapical zone, young leaves, and developing fruits and seeds. Generally, cytokinin transport is acropetal via the xylem sap, but … WebAug 24, 2016 · Genotype C17 showed a release from apical dominance after floral transition coinciding with decreased auxin and increased cytokinin levels in the …
WebApical dominance is suppressed under the effect of high cytokinin concentration and permits the development of axillary buds. If a number of side shoots or axillary shoots have been formed on the shoot tip then their inoculation may be done on the fresh medium containing cytokinin. WebPromotion of apical dominance (the tendency of an apical bud to produce hormones that suppress the growth of the buds below it on the stem). Flower formation. Fruit set and growth. Formation of adventitious roots. Auxin is the active ingredient in most rooting compounds in which cuttings are dipped during vegetative propagation. Gibberellins
WebSep 11, 2024 · What is apical dominance? It’s the phenomenon in plants where a main shoot dominates and inhibits the outgrowth of other shoots. In plants with strong apical dominance, main shoot tip damage or shoot …
WebApical dominance means that the growing apex of a plant controls the quiescence of buds sitting in lower positions along a shoot. This kind of bud inhibition is termed … hardiness bookPlant physiologists have identified four different stages the plant goes through after the apex is removed (Stages I-IV). The four stages are referred to as 1. lateral bud formation, 2. "imposition of inhibition" (apical dominance), 3. initiation of lateral bud outgrowth following decapitation, and hardiness characteristicWebLa dominance apicale est le contrôle exercé par les portions apicales de la pousse sur la croissance des bourgeons latéraux. Les explications classiques jusque là invoquées … hardiness bee balm