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罗汉果胚、胚乳及胚乳吸器的发育
薛妙男; 杨小华;
广西师范大学生物系
摘要:
本文采用石蜡切片与酶解分离法对罗汉果Siraitiagrosvenori胚、胚乳及胚乳吸器的发育过程进行观察.a)罗汉果胚的发育是按Geumurbanum的分裂程序进行的.属紫菀型.但在合子分裂成球胚过程中,胚芽原细胞分化明显.故属紫菀型的变异型。b)胚乳发育属核型.在球形胚阶段,在合点端和珠孔端有发育的胚乳吸器形成并进行旺盛生长,最大长度达1420μm,心形胚期.吸器活动开始减退,合点端核型胚乳吸器转变成细胞型.由胚乳本体基部膨大细胞.充当补助吸器.c)酶解分离法研究胚乳吸器的发生发育有较好的应用前景。
关键词:  罗汉果  胚胎发育  
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