Last Updated
：2025/11/20
pollen tube
（ plural ）
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the tube that develops from the wall of a pollen grain and, in seed plants, provides a passage through which the male nuclei reach the embryo sac to effect fertilization
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pollen tube
Under the microscope, we watched the pollen tube grow toward the ovule, carrying the male nuclei for fertilization.
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Under the microscope, we watched the pollen tube grow toward the ovule, carrying the male nuclei for fertilization.
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