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(四)二氧化碳:CO_2的影响,在双孢蘑菇中已经研究过。CO_2浓度在2%内会影响双孢蘑菇菌丝的生长,在32%的高浓度下则完全抑制。而且蘑菇的菌丝体或子实体能固定CO_2,并把它化合成各种有机物。侧耳属对CO_2有很大的耐性,菌丝能在16～22%CO_2浓度下生长,CO_2浓度达36%抑制作用显著。对这些种来讲,在基质的气相中,半好氧的条件加上高浓度的CO_2能减少引起正常竞争的微生物数量,这将有利于侧耳菌丝适合生长在非无菌的基质中。一般说,菌丝生长一旦完成,过量的CO_2会抑
(D) The effect of CO 2: CO 2 has been studied in Agaricus bisporus. CO 2 concentration within 2% will affect the growth of Agaricus bisporus mycelium, 32% of the high concentration is completely inhibited. And mushroom mycelium or fruiting body can be fixed CO_2, and it into a variety of organic synthesis. Pleurotus has great resistance to CO_2, mycelium growth in 16 ~ 22% CO_2 concentration, CO_2 concentration of 36% inhibition was significant. For these species, semi-aerobic conditions plus high concentrations of CO2 in the substrate’s gas phase reduce the amount of microorganisms that cause normal competition, which will favor the growth of Pleurotus ostreatus in non-sterile matrices. In general, excessive mycotoxins may be suppressed once mycelial growth has been completed