Results and discussion
Characterization of bacterial isolates
The data presented in Table 1 showed some characteristics of
the obtained bacterial isolates. According to morphological
characteristics, four bacterial isolates were short rods and
Gram ve, while two isolates were long rods. Three isolates,
namely P18, P31, and P39, were spore forming bacteria. All
isolated bacteria produced catalase enzyme which used by all
aerobic microorganisms. All the isolates were motile except
isolates p19 and p39. The motility of these plant associated
bacteria may confer an advantage for intercellular ingress
and spreading as endophytes within the host plant (Elbeltagy
et al., 2000)