Pollen grains, SEM

Pollen grains, SEM

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Caption: Pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains (orange) on the pistil of a prairie gentian flower (Gentiana sp.). Pollen contains the male sex cells of a flowering plant. Once the grains land on the pistil (female parts) of a flower, the pollen grains form tubes that burrow down through the stigma (tip) and style (shaft) of the pistil to reach the ovule, which contains the ovum, the female sex cell. This is fertilised, forming a seed.

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Keywords: biological, biology, botanical, botany, coloured, false-colour, false-coloured, flower, gentiana sp., grain, grains, images, magnified image, microscopic photos, nature, pistil, plant, pollen, pollinating, prairie gentian, scanning electron micrograph, scanning electron microscope, sem, subjects

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