Research on cultivation conditions of the fungul endophytic Trichoderma konilangbra ĐL3 with the ability to biosynthesis of indole - 3 - acetic acid isolated from the roots of polyscias fruticosa

Abstract

In this report, strains of endophytic fungal Trichoderma konilangbra ĐL3 were isolated from the roots Polyscias fruticosa in Nam Dinh was selected for the biosynthesise IAA to create biological products. The strain Trichoderma konilangbra ĐL3 fungal grows at cultivation PDA medium, temperature at 35^oC, pH 7, the highest amount of wet biomass and IAA concentration collected after 144 hours reached 127.2 g/L and 26.31 ppm, respectively. The Trichoderma konilangbra ĐL3 fungal grows well on the substrate of rice: corn with a mixing ratio of 2: 1, moisture 50 - 60%, supplemented with 1%, after 10 days of culture creating white mycelium, forming green spores, the mushroom density reached 8,7 log CFU/g.