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- W2370828748 abstract "In order to study the ultra structure of mature pollen grain in watermelon (Citrullus lanatus),especially on the relationship between the generative cell and vegetative cell,pollen grains were collected immediately after the male flowers opened,fixed in 2.5% glutaraldehyde,sliced up ,viewed and photographed with a TEM. Results showed that the mature pollen grain in watermelon contains a small generative cell that is completely enclosed within a large vegetative cell. Inside the vegetative cell are copious endoplasmic reticula that are in close association with a lot of lipid. There are also many Golgi bodies,a large number of small vesicles,some mitochondria of poor structure,and a few plastids in the vegetative cytoplasm. The vegetative nucleus is deeply multi-lobed. The lobes stretch towards one end of the generative cell that is shuttle-shaped. The wall of the generative cell is electron translucent. The generative nucleus is elongated and the generative cytoplasm contains Golgi bodies and endoplasmic reticula. The surface of the generative cell shows some wave-like extrusions in the opposite direction of the vegetative cell. The generative cell and the vegetative nucleus are proposed to form a functional assemblage,the male germ unit (MGU)." @default.
- W2370828748 created "2016-06-24" @default.
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- W2370828748 date "2007-01-01" @default.
- W2370828748 modified "2023-09-25" @default.
- W2370828748 title "Study on the ultra-structure of watermelon mature pollen grains" @default.
- W2370828748 hasPublicationYear "2007" @default.
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