Castor oil stem. Light micrograph of a longitudinal section through the stem of a castor oil (Ricinus communis) plant. At right are large and small parenchyma cells (blue). Immediately to their left are two rows of proto-xylem vessels and one row of spiral meta-xylem (both red),which transport water around the plant. To the left of this is a bundle of phloem fibres (red) sandwiched between two groups of phloem cells (blue). Magnification: x45 when printed at 10 centimetres tall | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wheeler, Dr. Keith |
Taille de l’image : | 3425 px × 5138 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |