Xylem plant cells. Coloured scanning electron micrograph (SEM) of a longitudinal section through a bundle of tracheid cells from a softwood toothpick. Tracheid cells transport water and mineral nutrients from the roots throughout the plant. The thick lignin cell walls also provide structural support for the stem. Magnification: x60 when printed at 10 centimetres wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 4000 px × 3006 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |