3.3 Morphological and physiological characterization
The result from Gram’s staining clearly exhibited 40 gram-positive and 31 gram-negative isolates.
However, the result fairly differenced from that of recently researched by Hung et al. (2004) and found that
gram-positive and gram-negative isolates were equally distributed between two species of soybean. The
result also found that 6 isolates formed capsule (Table 2). When grown on 0.2% agar, 30 isolates were
found to be motile. 71 isolates of endophytic bacteria were screened for growth on NA amened with
Streptomycin at the rate of 100