Pumpkin xylem tissue. Light micrograph of a section through pumpkin (Cucurbita pepo) tissue showing spiral tracheids,a type of xylem. Tracheids are long tubular cells with lignin,a material that provides support,in the cell walls. Spiral thickening of the cells can be seen. Tracheids conduct water from the roots of a plant along the stems to the leaves. Pumpkin plants produce large orange fruits with firm flesh and numerous seeds. Magnification: x210 when printed 10cm wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Michler, Astrid & Hans-Frieder |
Bildgröße: | 5112 px × 3436 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |