Mistletoe stem.Normarski differential interference contrast (DIC) light micrograph of a mistletoe (Viscum album) stem in cross-section,showing nine vascular bundles radiating out from the centre of the stem. Each vascular bundle is composed of long fibres,phloem (blue) and xylem (red). The long fibres (sclerenchyma) give the stem support and allow flexibility. In-between,the phloem transports food and the xylem transports water and minerals. The blue tissue (parenchyma) around the vascular bundles is for food storage and,when swollen with water,provides extra support. Horizontal object size: 1.2mm | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Pasieka, Alfred |
Bildgröße: | 4781 px × 3655 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |