Evening primrose pollen. Coloured scanning electron micrograph (SEM) of evening primrose (Oenothera biennis) pollen grains. Pollen grains are the male

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Evening primrose pollen. Coloured scanning electron micrograph (SEM) of evening primrose (Oenothera biennis) pollen grains. Pollen grains are the male gametes (sex cells) of a plant. These pollen grains exude a sticky thread known as viscin, which sticks to pollinating insects aiding the spread of the grains.

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Size: 3858px × 2894px
Photo credit: © SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: biennis, biological, biology, botanical, botany, cell, cells, coloured, evening, false-colour, false-coloured, gamete, grain, grains, male, nature, oenothera, pollen, primrose, reproduction, reproductive, sem, sex, sticky, strand, strands, thread, viscin