Serinol (2-Amino-1,3-propanediol) and 3-Amino-1,2-propanediol in Soybean Nodules

The compound X, which had previously been found to be accumulatedin the soybean nodules formed by infection with wild-type H₂-uptakenegative Bradyrhizobium japonicum strains, was identified asserinol (2-amino-1,3-propanediol) by means of elementary analysis,infrared spectrometry, ¹H-nuclear magnetic resonance, ¹³C-nuclearmagnetic resonance, high-performance liquid chromatography andgas chromatography/mass spectrometry. During the process ofpurification of compound X, it was also elucidated that 3-amino-1,2-propanediolwas present in the soybean nodules as a minor component. (Received January 6, 1986; Accepted June 16, 1986)