50.1 MB (50.0 MB compressed)
5125 x 3417 pixels
43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi)
DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Maize stem. Light micrograph of a section through the stem of a maize (corn, Zea mays) plant. The outer epidermis has a hypodermis of thick-walled cells of sclerenchyma (red). Next are two rings of supporting vascular bundles within the central parenchyma tissue (blue). Each vascular bundle is made up of surrounding thick-walled cells of supporting fibres - facing outwards is the phloem, and facing inwards to the stem is the xylem. Magnification: x1 when printed 10 centimetres wide.
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