False-colour scanning electron micrograph (SEM) of a slice through a raw potato showing starch grains,or amyloplasts (coloured green),within their cellular compartments. Due to the angle of sectioning,some compartments appear to contain more grains than others. Starch is synthesised from sucrose,a sugar formed in the leaves during photosynthesis & transported to the tuber (potato) via the phloem (vascular tissue). It is used as an energy store for the later development of buds on the surface of the potato. Starch grains in potatoes are larger than most plant cells. Magnification: x200 at 6x7cm size,x100 at 35mm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Photo Insolite Realite |
Taille de l’image : | 6504 px × 4992 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |