Pollen of an azalea, SEM

Pollen of an azalea, SEM

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Credit: SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY

Caption: Pollen. Coloured scanning electron micrograph (SEM) of pollen grains emerging from the stamen of an azalea flower (Rhododendron sp.). Pollen grains contain a plant's male gametes. When they come into contact with an ovule (female gamete) of a plant from the same species, they fertilise it, producing a seed. The ovule can belong to the same plant (self-pollination) or the pollen can be blown or carried by an insect to a different plant (cross-pollination).

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Keywords: azalea, biological, biology, botanical, botany, coloured, false-colour, false-coloured, gametes, grains, male, male gamete, many, multiple, nature, part, parts, pollen grain, reproduction, reproductive structure, rhododendron sp., scanning electron micrograph, scanning electron microscope, sem, stamen, structures

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