Xylem plant cells. Coloured scanning electron micrograph (SEM) of xylem cells from a sage stem (Salvia officinalis). The xylem transports water and mineral nutrients from the roots throughout the plant. The walls of the xylem vessels are strengthened with lignin (green),a woody substance that helps to support the plant | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 3600 px × 2648 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |