花生荚果发育过程中子叶细胞内脂肪、蛋白质的积累及其与ATP酶活性的关系

The Lipid and Protein Accumulation and Their Relations to ATPase Activity in the Cotyledon Cells During the Development of Peanut Fruits

花生荚果发育过程中,子叶细胞从小到大不断发育,脂体、蛋白体由小变大、从少到多直至充满整个细胞;子叶细胞中的淀粉粒数量则由多变少,表明了淀粉粒参与胚胎发育过程中活跃的的物质代谢,最后基本被消耗;ATP酶活性的强弱和分布部位也在整个荚果发育的不同时期发生明显变化;讨论了脂体和蛋白体的生物来源和形态结构,并指出花生油分和蛋白质的积累与ATP酶活性有关。

Cotyledon ultrastructure and ATPase activity localization in the friuts development of two species of peanut were studied with electron microscope and cytochemistry technique. Results showed that size and internal structure of cells changed very much in the different growing periods, the cell size became bigger gradually, the number of lipid bodies and protein bodies increased and their size got bigger gradually, the cells were eventually full of lipid bodies and protein bodies. The protein bodies and lipid bodies developed simultanously. The changes of protien body, morphology, ATPase activity and localized positions were evidently different in peanut cotyledon cells in the different growing periods. The number of starch grians decreased with the development of peanut fruits. It was therefore concluded that the starch grians might participate in the carbonhydrate metabolism and almost be consumed off finally. The results also showed that the accumulation of lipid and protein in peanut cotyledon was related to ATPase activity. The orginismic origin of lipid body and protein body was also discussed.