制作食用菌菌种时,经常遇到的杂菌有青霉、根霉、毛霉、曲霉、木霉、细菌和酵母菌等。1.青霉:青霉是制种中最常遇的杂菌,它分布极广,菌落呈青绿色,其污染后培养基呈现绿色霉斑。青霉主要靠分生孢子繁殖,菌丝有横隔,菌丝顶端产生直立的分生孢子梗,并进一步分化成小梗,其上产生青绿色分生孢子,使整个菌丝呈扫帚状(图1)。 When making edible fungus species, the common bacteria are Penicillium, Rhizopus, Mucor, Aspergillus, Trichoderma, bacteria and yeast. Penicillium: Penicillium is the most commonly encountered in the production of mixed bacteria, it is widely distributed, the colonies were cyan, the green medium staining after its pollution. Penicillium mainly by conidia breeding, hyphae transversal, mycelium top produce conidiophores erect and further into small stems, which produce turquoise conidia, so that the entire mycelium was broom-like figure 1).