pollen tube
Alternative form of hocus-pocus
transversely; crosswise
The field of philosophical logic that is concerned with obligation, permission, and related concepts.
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
顕微鏡下で、私たちは花粉管が胚珠へ向かって成長し、受精のために雄核を運ぶのを観察した。
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