Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (green),which transports water and mineral nutrients from the roots throughout the plant. Forming a thin ring around the xylem is the phloem (beige),which transports carbohydrates and plant hormones around the plant. The outer tissue of the stem (brown) is the bark. Magnification: x30 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 4825 px × 3625 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |