Broccoli apical and differentiating meristem, SEM
Bildnummer 12378187
| Apical and differentiating meristem of a broccoli flower bud (Brassica oleracea italica), scanning electron micrograph (SEM). Tip of a small broccoli flower bud with actively dividing apical meristem tissue along the leading edges of the bud (top of image). Apical meristems are the completely undifferentiated (indeterminate) meristems in a plant. At the meristem summit there is a small group of slowly dividing cells which is commonly called the central zone. Cells of this zone have a stem cell function and are essential for meristem maintenance. A short distance away the meristem cells begin to differentiate and stomata can be seen developing in to epidermal cells that contain stomata (bottom of image). Broccoli possesses numerous fleshy flower heads (usually green in colour) arranged in a tree-like fashion on branches growing from a thick stalk. Magnification: x100 when shortest axis printed at 25 millimetres. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / DENNIS KUNKEL MICROSCOPY |
| Bildgröße: | 2726 px × 3206 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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