Acacia pollen grains on anthers, SEM

Acacia pollen grains on anthers, SEM

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Caption: Acacia pollen grains on anthers, coloured scanning electron micrograph (SEM). Pollen grains, containing the male sex cells (gametes), are reproductive structures produced by the male parts of flowering plants and dispersed from the anthers. The structure shown is the hard outer casing (exine) that protects the gametes during transit between flowers. Acacia belongs to the legume family (Fabaceae). There are around 1400 species worldwide, with 950 of them occurring in Australia. They are mostly evergreen shrubs. Magnification: x400 when printed at 10 centimetres across.

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Keywords: acacia, angiosperm, angiosperms, anther, biological, biology, botanical, botany, coloured, exine, false-color, false-colored, false-coloured, flora, flower, flowering plants, male sex cells, nature, no-one, nobody, outer casing, plant, plant reproduction, pollen, pollen grain, reproductive, scanning electron micrograph, scanning electron microscope, sem, silver acacia, stamen

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