Fern (Pteridium aquilium) root. Light micrograph of a section through a root from a bracken plant. Shown here are the parenchyma cells of the inner cortex (green-red),the outer ring of the endodermis (black-red) and inner ring of the pericycle (red). At centre is the metaxylem (large cells,green-red) and protoxylem (small cells,red). The xylem is surrounded by the phloem sieve tube cells (green). Magnification: x10 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 4829 px × 3732 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |