Pollen grains, SEM

Pollen grains, SEM

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Credit: JANNICKE WIIK-NIELSEN / SCIENCE PHOTO LIBRARY

Caption: Coloured scanning electron micrographs (SEM) of pollen grains from a variety of plants. Pollen grain size, shape and surface texture differ from one plant species to another. The pollen grains contain a male gamete (reproductive cell) that is intended to fertilise an egg or ovule (female gamete). This will initiate the formation of a seed for a new plant. Magnification: x500 when printed at 10cm wide.

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Keywords: allergen, assorted, assortment, biological, biology, botanical, botany, cells, coloured, false-coloured, flora, flower, flowering, gamete, gametes, grain, grains, male, micrograph, microscope, microscopy, nature, plant, plants, pollen, pollen allergy, pollen grain, pollination, reproduction, reproductive, reproductive structure, scanning electron micrograph, scanning electron microscope, scanning electron microscopy, sem, sex cell, surface structure, varied, various, wildlife

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