The potential of dark septate endhophyte fungus from white jabon (Neolamarckia cadamba (Roxb.) Bosser)

Abstract

Abstract Endophytic fungi are one of the forest microbes that can be solutions for increasing the resistance of forest plants to environmental stress. Exploration and collection of endophytic fungi from the forest is important because the condition of the forest as a natural habitat for microbes has been disturbed due to degradation and deforestation. A potential plant species for forest and land rehabilitation is white jabon (Neolamarckia cadamba (Roxb.) Bosser). The research objective was to isolate and characterize endophytic fungi and to obtain the dark septate endhophyte from the roots of the white jabon which have the potential to increase plant growth. The fungus was isolated by surface sterilization method and then characterized and identified morphologically. Pathogenicity test was carried out to determine the pathogenicity of the fungus. The results of the study found ten isolates. Most of the isolated fungi showed sterile mycelia with septate hyphae, so they were not identified morphologically. The isolate of CPGS 3 isolates probably belonged to the genus Aureobasidium sp. CPGS 3, CPKR 6, and CPPS 11 isolates are candidates for dark septate endophyte fungi which have the potential to promote plant growth and not become pathogens in chinese cabbage (Brassica rapa).