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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Pollen_tube
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INFOTEXT
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1992-09-02
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325b
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9 lines
An outgrowth from a pollen grain that grows
towards the ovule, following germination of
the grain on the stigma. In angiosperms
(flowering plants) the pollen tube reaches
the ovule by growing down through the style,
carrying the male gametes inside. The gametes
are discharged into the ovule and one
fertilizes the egg cell.