45.5 MB (45.0 MB compressed)
4787 x 3320 pixels
40.6 x 28.2 cm ⏐ 16.0 x 11.1 in (300dpi)
DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY
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False colour scanning electron micrograph of a section through a single clove of garlic Allium sativum. Each of the curved bands visible here correspond to a leaf, which, as with the onion, are tightly curled around each other. The loosely- spaced internal cells comprising the leaf make up most of the image. These are sandwiched between the outer & inner epidermal layers (closely packed cells). The pungent taste of garlic is due to the presence of a chemical called allyl sulphide. Magnificiation: X 14 at 35mm size. Original is bw print h110/216.
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