4. Discussion
This investigation is to describe the indigenous endophytic bacteria isolated from three types of rice
tissue, which collected from conventional, 1 year organic rice, and 3 year organic rice farms. Seventy-one
isolates of endophytic bacteria were screened from those samples, using PDA and TSA medium. There
was significant phenotypic variation in the types of indigenous bacteria. Several factors may explain these
differences, including rice tissue types and the type of rice farm. Previous researches have reported that
there were both phenotypic and genotypic variations in the types of endophytes isolated from two species;
one cultivated (Glycine max) and another wild (G. soja) of soybean