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Axillary buds are located at the intersection of the leaf and stem of a plant. The axillary bud (or lateral bud) is an embryonic or organogenic shoot located in the axil of a leaf. Each bud has the potential to form shoots, and may be specialized in producing either vegetative shoots (stems and branches) or reproductive shoots . Once formed, a ...
Auxin induces shoot apical dominance; the axillary buds are inhibited by auxin, as a high concentration of auxin directly stimulates ethylene synthesis in axillary buds, causing inhibition of their growth and potentiation of apical dominance. When the apex of the plant is removed, the inhibitory effect is removed and the growth of lateral buds ...
They are known to regulate axillary bud growth and apical dominance. According to the "direct inhibition hypothesis", these effects result from the ratio of cytokinin to auxin. [citation needed] This theory states that auxin from apical buds travels down shoots to inhibit axillary bud growth. This promotes shoot growth, and restricts lateral ...
A terminal bud occurs on the end of a stem and lateral buds are found on the side. A head of cabbage (see Brassica) is an exceptionally large terminal bud, while Brussels sprouts are large lateral buds. [citation needed] Since buds are formed in the axils of leaves, their distribution on the stem is the same as that of leaves.
Accessory bud – an embryonic shoot occurring above or to the side of an axillary bud; also known as supernumerary bud. Adventitious bud – a bud that arises at a point on the plant other than at the stem apex or a leaf axil. Axillary – an embryonic shoot which lies at the junction of the stem and petiole of a plant. Dormant – see "Latent ...
Rhizomes develop from axillary buds and grow horizontally. The rhizome also retains the ability to allow new shoots to grow upwards. [4] A rhizome is the main stem of the plant that runs typically underground and horizontally to the soil surface. [5] [6] Rhizomes have nodes and internodes and auxiliary buds. [7]
When apical buds are trimmed by gardeners, the shape and density of a tree or shrub changes as new, uninhibited branches grow en masse. Topiary garden. Beckley Park garden . In stems, primary growth occurs in the apical bud (the one on the tips of stems) and not in axillary buds (primary buds at locations of side branching).
The development of buds in axillary cauliflorous species occurs through either the re-use of the same position or old tissue over seasons of growth or release from dormancy. [5] In both cases, vascularization of the bud must occur from pre-existing tissue, such as the pith. [6] In Cercis canadensis, dormant buds break annually in a sympodial ...