Marrow stem. Light micrograph of a longitudinal radial section through the stem of a marrow (Cucurbita pepo) plant,showing the various tissues of three vascular bundles. Each vascular bundle contains (from left to right): Outer stem parenchyma cells,three rows of perivascular thick-walled fibres (red-orange),six rows of large celled parenchyma cells (blue),two rows of phloem sieve tubes with sieve plates (dark red),six rows of thin cambium tissue cells (light blue),a large reticulately-thickened vessel (red),five rows of wood parenchyma tissue (deep blue),large parenchyma (blue). Magnification: x4 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 4777 px × 4028 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |