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作 者 ：孟金陵

期 刊 ：武汉植物学研究 1987年 5卷 1期 页码：29-34

关键词：甘蓝型油菜；胚胎发育；子叶细胞；质体；

Keywords:Brassica napus L., Embryo development, Cotyledon cells, Plastid,

摘 要 ：用透射电镜观察了开花后20天、30天和50天的甘蓝型油菜子叶叶肉细胞的超微结构。鱼雷形胚时子叶细胞中富含核糖体和内质网并开始形成脂体。蛋白质的积累迟于油脂,开花后30天时液泡中出现蛋白质体。胚成熟时细胞中大量脂体相互挤压成多边形并围绕在蛋白质体周围,少有细胞器。整个观察过程中质体始终缺乏精细的片层结构,胚成熟时细胞中质体数显著减少。对质体在胚胎发育过程中的功能及其与低亚麻酸育种的关系进行了讨论。

Abstract:The ultrastructure of cotyledonary mesophyll cells of Brassica napus L. were observed with the transmission electron microscope during embryo development, There were plenty of ribosomes and endoplasm reticulum and oil began to accumulate in mesophyll cells when the cmbryo was torpedo in shape. The plastid lacked fine lamella structure and a starch grain was enveloped in it. Protein deposited later then oil deposited. 30 days after pollination protein bodies appeared in the central vacuole. There were a great quantity of lipid bodies surrounding the protein bodies and were a few organelles in the cells of matured embryos. The function of plastid at the process of the embryo development was discussed.

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