Dahlia tuber, light micrograph

Dahlia tuber, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Dahlia tuber. Polarised light micrograph of a section through the tuber of a Dahlia sp. plant, showing inulin crystals. The Dahlia produces root tubers that are mostly made up of scattered vascular bundles. Parenchyma tissue cells store the insoluble polysaccharide inulin as a means of storing energy. When the tubers are immersed in alcohol the inulin crystallises near bundles as spheroid crystals. Magnification: x7, when printed 10 centimetres wide.

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Keywords: angiosperm, angiosperms, biological, biology, botanical, botany, cell, cell biology, cells, close-up, crystal, crystalline, crystallised, crystals, cytological, cytology, dahlia sp., detail, dicot, dicots, dicotyledon, dicotyledons, energy, food store, histological, histology, inulin, light micrograph, light microscope, microscopy, parenchyma tissue, plant, plants, polarised light, polysaccharide, root tuber, section, sectioned, stain, stained, starch, storage, structural, structure, structures, tissue, tuber

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