Plant stem. Coloured scanning electron micrograph (SEM) of a plant stem (left) with a sectioned petiole (across centre). An axillary bud is seen above the petiole. A petiole is the stalk that attaches a leaf to its stem. Present in the petiole are three vascular bundles (centre,left and right). Within each vascular bundle are phloem vessels,which transport carbohydrates around the plant,and xylem vessels,which transport water and mineral nutrients. Magnification: x300 when printed at 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 4550 px × 3919 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |