ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY
Light micrograph of a slice through a raw potato showing numerous starch grains, or amyloplasts (coloured pink & violet). 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: x60 at 6x4.5cm size.
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