Morning glory pollen grains, SEM

Morning glory pollen grains, SEM

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Credit: SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY

Caption: Morning glory pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains from a morning glory flower (Ipomoea sp.). The grains have a highly sculptured outer wall (exine), which assists its dispersal by improving its adherence to pollinating insects. The characteristic surface of a pollen grain is used by botanists to recognise and classify plants. Each pollen grain contains a male gamete (reproductive cell) that is intended to fertilise an egg or ovule (female gamete), and initiate the formation of a seed for a new plant.

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Keywords: 2, biological, biology, botanical, botany, cells, coloured, dispersal, duo, exine, false-colour, false-coloured, fertilisation, fertilization, flora, flower, flowering, gamete, gametes, grain, grains, ipomoea sp., male, morning glory, nature, outer wall, pair, plant, plant anatomy, pollen, pollen grain, pollination, reproduction, reproductive, scanning electron micrograph, scanning electron microscope, sculpted, sem, sex cell, two

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