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单词 phragmosome
释义

phragmosome /'fræɡmə,səum/

英汉-汉英词典
n. (细胞)成膜粒,隔膜
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  • chromosome n. 染色体
phragmosome n. [细胞] 成膜粒;隔膜
英语百科

Phragmosome

Phragmosome formation in a highly vacuolated plant cell. From top to bottom: 1) Interphase cell with large central vacuole. 2) Cytoplasmic strands starting to penetrate vacuole. 3) Nucleus migration into center and formation of the phragmosome. 4) Phragmosome formation completed and formation of preprophase band marking future cell division plane.

The phragmosome is a sheet of cytoplasm forming in highly vacuolated plant cells in preparation for mitosis. In contrast to animal cells, plant cells often contain large central vacuoles occupying up to 90% of the total cell volume and pushing the nucleus against the cell wall. In order for mitosis to occur, the nucleus has to move into the center of the cell. This happens during of the cell cycle.

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更新时间:2025/6/19 22:18:52