Potato dextrose agar and grain medium were also used to identify fungi which were not determined by the primary culture . fungi were all secondarily cultured on sabouraud medium to observe the colony ' s texture , colour , growth rate , surface status and reverse pigment . the fungi should be examined by microscope to inspect their microscopic structure from 7th day to 21st day 使用的培养基有沙氏培养基、土豆培养基、真菌试验培养基和5种种子培养基，连续培养4周，并随时观察菌落的色彩、生长速度、表面状态、背面颜色等，并从第7天?第21天连续镜检以检查真菌的显微结构，综合菌落形态和显微结构，以确定真菌的种属。
