M. alba explants were rinsed with tap water, dipped in 2% sodium hypochlorite (10 min), 70% ethanol for 30 seconds and washed with sterilized distilled water several times. Surfaces of explants were removed by cutting under sterile conditions. Small pieces of surface sterilized explants were plated on potato dextrose (PDB) and Lysogeny broth (LB). Difference characteristic microorganism were selected and subcultured at least 3 times to obtained a single strain. Isolated microorganisms were transferred onto liquid potato dextrose (PDB) or Lysogeny broth (LB). Endophytes medium were harvested, and then separated with ethyl acetate. Ethyl acetate parts were kept and evaporated. Dried crude extracts were re-dissolved in methanol, then diluted into appropriated concentrations.