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pollen tube

/ˈpɒlən tjuːb/

Traduction: Fine tube that grows from a pollen grain after it lands on the stigma of a pistil, carrying male gametes to the ovule for fertilization in flowering plants.

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/ˈpɒlən tjuːb/C1formalscientific
  • frFine tube that grows from a pollen grain after it lands on the stigma of a pistil, carrying male gametes to the ovule for fertilization in flowering plants.

A slender tube that grows from a pollen grain after it lands on a stigma, carrying male gametes to the ovule for fertilization in flowering plants.

  1. Plant reproduction structureC1formal

    A tube that grows from a pollen grain after it lands on a stigma, carrying sperm cells to the ovule for fertilization.

    frTube pollinique

    • The pollen tube grows down through the style to reach the ovary.
    • Scientists observed the pollen tube under a microscope.
    • The growth of the pollen tube is essential for seed formation.