Marrow stem, light micrograph

Marrow stem, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Marrow stem. Light micrograph of a longitudinal radial section through the stem of a marrow (Cucurbita pepo) plant, showing the various tissues of three vascular bundles. Each vascular bundle contains (from left to right): Outer stem parenchyma cells, three rows of perivascular thick-walled fibres (red-orange), six rows of large celled parenchyma cells (blue), two rows of phloem sieve tubes with sieve plates (dark red), six rows of thin cambium tissue cells (light blue), a large reticulately-thickened vessel (red), five rows of wood parenchyma tissue (deep blue), large parenchyma (blue). Magnification: x4 when printed 10 centimetres wide.

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Keywords: anatomical, anatomy, angiosperm, angiosperms, biological, biology, botanical, botany, bundles, cambium, cell, cells, cucurbita pepo, fibre, fibres, flora, histological, histology, light micrograph, marrow, microscope, nature, parenchyma, perivascular, phloem, plant, plants, plates, section, sectioned, sieve plate, sieve tube, squash, stem, structure, thick-walled, thickened, tissue, tissues, tubes, vascular bundle, white background, wildlife, wood, woody

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