观察青霉的实验是初中植物学必做的实验。如果按教材上的做法去做,效果不很理想,对青霉帚状结构和孢子的着生状态看得不清楚。我在教学中作了一些改进,收到良好的效果。青霉常生长在腐烂的桔皮上。因此,我们既可用桔皮作为培养青霉的基质,也可做为菌种的来源。具体的做法是:取新鲜桔皮,将其切成宽1厘米,长2厘米的长方形块,置一洗净载玻片盖在上而,用橡皮筋或线将两个叠在一 The observation of Penicillium is an experiment that must be done for botany in junior high school. If the practice is done according to the teaching materials, the effect is not very satisfactory. It is unclear about the state of the penicillium structure and spores. I made some improvements in teaching and received good results. Penicillium often grows on rotting orange peel. Therefore, we can use orange peel as a substrate for the culture of Penicillium and also as a source of bacterial species. The specific method is: take fresh orange peel, cut it into a rectangular piece of 1 cm wide and 2 cm long, place a wash glass cover on it, and use rubber bands or threads to place the two in one place.