Both results of DNA hybridization indicate that its nif DNA arose from the parent R.j.USDA 191, osm DNA from the pJG137. Under the condition ofN~-+NaCl, it shows growth and under the condition of SWSC + Tc, it alco demonstrats rapld propagation (1. 6mg dry mass/ml/29 hrs).Protein Yield is as high as 59. 7mg /ml, amino acid composition iscomplete.