Blackcurrant plant stem. Light micrograph of a cross-section through the stem of a blackcurrant (Ribes nigrum) plant. The outer cortex (blue and pale brown) is made of cork cambium tissue,beneath which is a ring of phloem and sieve tube bundles (brown). Under this is a ring of cambium (blue) and then woody fibres (blue and pale brown). The solid pith (centre,blue and dark brown) is composed of large parenchyma cells. Magnification: x14 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 4134 px × 4562 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |