Pondweed stem. Light micrograph of a transverse section through the stem of a pondweed (Potamogeton sp.) plant. At centre is the vascular system of xylem and phloem tissues. The cortex consists of parenchyma cells with large air spaces (lacunae, white circles). Magnification: x80 when printed at 10 centimetres wide. | |
Licence : | Libre de droits |
Crédit : | Science Photo Library / Gschmeissner, Steve |
Model Release : | Non requis |
Property release : | Non requis |
Durée : | 12 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |