Abstract: The accumulation rate of storage proteins, the intial time of synthesis of protein subunits, the sequence of protein body development and the acyl urea contents in young stem were studied, during seed development in two wild soybean (Glycine soja) plants one with higher protein content (50.7%) and one with lower protein content (40.8%), using the methods of SDS-PAGE, electronmicroscopy, and protein and acyl urea and N2 fixition activity determinations. The results showed that the higher protein content in G. soja was related to the higher N2 fixation activity, early synthesis and accumulation rates of storage protein, the highly efficent style of protein storage in vacuoles and larger volumes of protein bodies in the cotyledon cells.

Key words: wild soybean, storage protein, protein body development