Polarised light micrograph of a stone cell cluster, or sclereid, in the fruit of a pear (Pyrus sp.) tree. Stone cells give support to the soft tissue of the pear. The thick cellulose walls of the sclereids are impregnated with lignin, the main component of wood. Magnification: x372 when printed 10 cm high. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Mis, Marek |
Bildgröße: | 5151 px × 3392 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |