The morphology and size of the filiform apparatus change with the development period of the synergids.

助细胞的丝状器在不同发育时期形态及大小不同；

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A mature embryo sac is composed of egg apparatuses (two synergids and one egg cell), central cells and three antipodal cells.

成熟胚囊包含卵器(由两个助细胞、一个卵细胞组成)，中央细胞及三个反足细胞。

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Three kinds of abnormal phenomena of double egg apparatuses (71.4%), three egg apparatuses (17.5%) and no synergids (11.1%) were found in the varied sacs.

在变异型胚囊中包括双卵卵器胚囊（71．4％）、三卵卵器胚囊（17．5％）和无助细胞胚囊（11．1％）。

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