摘要
大豆(Glycine max L.)和其它豆科植物一样,子叶细胞中的贮藏蛋白质是积累在蛋白体内的。大豆子叶中蛋白体的形成有两种途径。大豆种子中的贮藏蛋白质有两种主要成分:7S豌豆球蛋白(vicilin或conglycinin)和11S豆球蛋白(legumin或glycinin)。7S球蛋白有3种亚基:α’、α和β;11S球蛋白分为酸性亚基区(11S
At 20 days after flowering (DAF), the 7S a~, and a subunits began to accumulate. At 25 1)AF, the 7SB, lISA and llSB subunits appeared. Five days later, the llSA-4 subunit was present During the period of 25—55DAF, the storage protein content continued to increase. From 55 to 03 DAF, there was a decrease in the synthetlc ra'e of the storage proteins. Comparing these re- suhs with the two paths of protein body formation reported previously, we draw the concluslon that ^+he protein bodies developed from vacuoles contained not only the 7S but also the IlS pro- teins in soybean cotyledon cells.
关键词
大豆
蛋白
贮藏蛋白
Glycine max L
Protein body Storage protein
