Water milfoil stem, light micrograph

Water milfoil stem, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Water milfoil stem. Light micrograph of a transverse section through the stem of the aquatic whorled water milfoil (Myriophyllum verticillatum) plant. All aquatic plants (hydrophytes) have a similar stem structure. The epidermis has a thin cuticle and is permeable to water. The vascular tissue (centre) acts as a cable to resist the movement of water. Below the outer endodermis (purple ring) is a ring of phloem (small dark blue cells) and an inner thin ring of xylem (large circles). The pith consists of large-celled parenchyma (deep blue). Magnification: x14 when printed 10 centimetres wide.

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Keywords: angiosperm, angiosperms, aquatic, biological, biology, botanical, botany, bundle, cell, cell biology, cells, cut out, cut outs, cut-out, cut-outs, cuticle, cutout, cutouts, cytology, endodermis, flora, hydrophyte, hydrophytics, light micrograph, light microscope, lm, myriophyllum verticillatum, nature, permeable, phloem, plant, plant structure, section, sectioned, stem, support, supportive, vascular tissue, white background, whorl, whorled water milfoil, whorls, xylem

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