Pollination, light micrograph

Pollination, light micrograph

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Caption: Pollination. Light micrograph of a section through an evening primrose (Oenthera biennis) stigma. Pollen grains (circular) are adhering to the surface of the stigma. Once attached to the surface, each pollen grain produces a tube that penetrates the stigma (dark areas). The tube enables the male sex cells to reach the ovary (not seen), where fertilisation takes place. Magnification: X30 when printed 10 centimetres wide.

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Keywords: biological, biology, botanical, botany, evening primrose, flora, flower, flowering part, light micrograph, light microscope, longitudinal, nature, oenothera biennis, parts, plant, plants, pollen, pollen tube, pollinating, pollination, protoplasmic tubes, reproduction, reproductive, section, sectioned, stigma, tubes, vertical

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