Light micrograph of a transverse section through the petiole (leaf stalk) of a fern leaf. Plant tissues are stained with mixture of Alcian Blue and Safranine O. Primary cell walls are blue and secondary, lignified walls are red. A vascular bundle and endodermis are visible at centre. Magnification: x166 when printed 10cm x 10cm. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Turzanska, Magda |
Taille de l’image : | 4078 px × 3070 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |