栽培甜菜中央细胞受精前后的超微结构

李伟^1,², 申家恒^2,^*, 郭德栋³

Ultrastructure of Central Cell before and after Fertilization in Sugar Beet (Beta vulgaris)

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

图版II 花蕾时期次生核阶段中央细胞的结构 A: 花蕾时期胚囊的半薄切片, 示中央细胞的次生核Bar = 5 μm; B~D: 花蕾时期中央细胞的超微结构, 图B示次生核Bar = 2 μm; 图C、D示次生核周围胞质中的线粒体、内质网和高尔基体Bar = 500 nm; E~F: 花蕾刚开放时胚囊的相邻半薄切片, 图E示反足细胞, 图F示中央细胞的次生核Bar = 10 μm; G~J: 花蕾刚开放时中央细胞的超微结构, 图G示次生核Bar = 2 μm; 图H示双相核仁Bar = 1 μm; 图I示次生核周围胞质中的线粒体、内质网和高尔基体Bar = 500 nm; 图J箭头示颗粒状物质正向核外输出Bar = 200 nm。
Plate II Structure of central cell at secondary nucleus stage during bud period A: semi-thin section of embryo sac during bud period, showing secondary nucleus Bar = 5 μm; B–D: ultrastructure of central cell during bud period. B: secondary nucleus Bar = 2 μm; C–D: mitochondria, endoplasmic reticulum and the Golgi around secondary nuclear Bar = 500 nm; E–F: semi-thin sections of embryo sac at the beginning of flowering; E: antipodal cell; F: secondary nucleus Bar = 10 μm; G–J: ultrastructure of central cell at the beginning of flowering. G: secondary nucleus Bar = 2 μm; H: bipolar nucleolus Bar = 1 μm; I: mito-chondria, endoplasmic reticulum and the Golgi around secondary nuclear Bar = 500 nm; J: particle material is being output from nuclearBar = 200 nm.