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菌种退化是当前食用菌生产中十分突出的问题.但究竟什么是菌种退化?为什么会发生退化?至今缺少深入研究,因此概念不明确,认识不一致。一、什么是菌种退化菌种退化是群体中退化菌丝在数量上占一定优势后,表现菌种生产性能的下降。退化是一种变异,变异在生物发展中是绝对的,食用菌种退化是指菌株在形态生理方面退行性变化,具体讲是产量、质量的下降,整个菌株的孢子、菌丝、菌落、子实体发育缓慢,以至变态。菌种退化是个复杂的问题,有很多现象和菌种
The degeneration of bacteria is a very prominent issue in the production of edible mushrooms, but what is the degeneration of bacteria? Why degenerate? To date, there is a lack of in-depth research, so the concept is not clear and the understanding is inconsistent. First, what is the degradation of bacteria species degradation is the population of degraded mycelium in the number of certain advantages, the performance of species performance decline. Degradation is a kind of variation. Mutation is absolute in biological development. Degradation of edible species refers to the degenerative changes in morphology and physiology of the strain. Specifically, the yield and quality of the strain are degenerated. The spores, mycelium, colonies and sub-strains Physical development is slow, even metamorphosis. Strain degeneration is a complex problem, there are many phenomena and species