Generative cell elongating, vegetative nucleus bending 1618. Mature pollens.
生殖细胞延伸，营养核弯曲产生凹陷1620为成熟花粉
POSITIONAL SHIFT BETWEEN THE VEGETATIVE NUCLEUS AND THE GENERATIVE CELL IN AMARYLLIS POLLEN TUBE
朱顶红花粉管中营养核和生殖细胞位置的变换
The generative cell and the vegetative nucleus are proposed to form a functional assemblage, the male germ unit.
生殖细胞一端伸入营养核裂片间隙，2者构成雄性生殖单位。
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