栽培甜菜助细胞退化进程的超微结构观察

李伟^1,², 申家恒^2,^*, 郭德栋³

Ultrastructure of Synergid in Its Degenerative Process in Sugar Beet (Beta vulgaris)

LI Wei^1,², SHEN Jia-Heng^2,^*, GUO De-Dong³

图版I A: 2个助细胞同时存在Bar = 2 μm。B~D: 图A的局部放大, 图B示两助细胞之间的细胞壁Bar =2 μm; 图C示助细胞核周围的胞质Bar =500 nm; 图D示高尔基体和内质网Bar =200 nm。E: 一个助细胞开始退化, 一个助细胞宿存Bar = 2 μm。 F: 图E的局部放大, 示两助细胞之间的胞间连丝箭头 Bar =200 nm。
Plate I A: Both of two synergids exist at the same time Bar = 2 μm. B-D: Higher magnification of Figure A, Figure B shows cell wall between two synergids Bar =2 μm, Figure C shows cytoplasm around synergid nucleus Bar =500 nm; Figure D shows golgi body and endoplasmic reticulum Bar =200 nm. E: One synergid began to degenerate and the other persisted Bar = 2 μm. F: Higher magnification of Figure E, showing plasmodesmata between synergids by arrows Bar =200 nm.