Infection and colonization of endophytic fungus Chaetomium globosum ND35 on the root of Jinyan No.4 cucumber were observed by light microscopy,scanning electron microscopy and transmission electron microscopy.Hyphae mainly infected root from gaps between epidermal cells and colonized in epidermal cells and outer cortical cells.It was capable of establishing symbiosis with plant.The effect of Chaetomium globosum ND35 on growth and yield of 4 cucumber varieties was investigated by applying different content o...