Black pepper stem, light micrograph

Black pepper stem, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Black pepper stem. Polarised light micrograph of a transverse section through the stem of a black pepper (Pipa nigrum) plant. This plant had two groups of vascular bundles; one in the central pith and one in an outer ring. Within the vascular bundles are xylem (green) and phloem (blue) cells, which transport water and carbohydrates around the plant respectively. This structure gives this twining stem strength and flexibility. Magnification: x14 when printed at 10 centimetres wide.

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Keywords: biological, biology, black pepper, botanical, botany, bundles, cross section, cross-section, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, flora, light micrograph, light microscope, nature, phloem, pipa nigrum, pith, plant, plant anatomy, polarised light micrograph, polarized, purple background, sectioned, stem, transverse section, vascular bundle, xylem

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