Abstract

• A total of 20 endophytic fungi were isolated from three different plants, Croton roxburghianus N.P.Balakr (Thet-yin-gyi) , Tadehagi triquetrum (L.) H. Ohashi. (Lauk-thay), Cassia siameaL. (Mezali) collected from Pathein Township. In the investigation of antimicrobial activities of 20 endophytic fungi with ten kinds of test organism, Agrobacterium tumefaciens, Aspergillus paraciticus, Bacillus subtilis, Candida albicans, Escherichia coli, Micrococcus luteus, Pseudomonas fluorescens, Saccharomyces cerevisiae, Salmonella typhimurium and Staphylococcus aureus were used for the test throughout the research studied. In this study, endophytic fungi NF-01(27.85mm) and NF-07(26.67mm) showed highly activity against Bacillus subtilis. Among them, fungus NF-01 isolated from Croton roxburguianus n.p.balakr. was screened for further investigation based on the results of maximum inhibition against Bacillus subtilis. In the investigation of carbon and nitrogen sources utilization, the excellent growth of NF-01 fungus was found on carbon sources such as glucose and glycerol; nitrogen sources were yeast extract and peanut cake.