Apical Bud (Longitudinal Section)
Hydrilla verticillata
A longitudinal section of a terminal apical bud (Apical bud L.S.) stained pink/magenta with Safranin, demonstrating primary shoot development and apical dominance structures in an aquatic angiosperm. At the tip, the dome-shaped shoot apical meristem (SAM) is composed of actively dividing, unspecialized meristematic cells with dense cytoplasm and prominent nuclei. Flanking the apical dome are successive stages of arching leaf primordia and developing young leaves that overlap to form a protective terminal envelope. In the axils of young leaves, developing axillary bud primordia can be seen, while procambial strands extend downward along the stem axis, marking the initial differentiation of primary vascular tissue within the central stem axis.
- Category
- Botany & Plants
- Magnification
- 20x
- Stain
- Safranin
- Tags
- apical bud, apical bud longitudinal section, shoot apical meristem, leaf primordia, axillary bud primordium, procambium, meristematic tissue, shoot apex, terminal bud, Hydrilla verticillata, primary growth, plant developmental biology, shoot development, stem apex
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