Sycamore stem. Light micrograph of a vertical section through a sycamore (Acer pseudoplatanus) stem node. The red layer at the edge of the stem is a protective layer of cork and parenchyma tissue (phellogen),known as the abscission layer,that forms just prior to the leaves dropping in autumn | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 3508 px × 4746 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |