Squash stem. Light micrograph of a longitudinal radial section through the stem of a squash (Cucurbita sp.) plant,showing the sieve tubes and plates (blackish-red) of the phloem in a vascular bundle. Alongside the phloem are companion cells (long thin),which store food. Magnification: x37 when printed 10 centimetres tall | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 3543 px × 5315 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |