人工栽培天麻的成败,产量的高低与蜜环菌菌索生长情况密切相关,掌握蜜环菌菌索的生物学特性和侵染原理,以使在生产中造成利于菌索生长的环境条件。蜜环菌的菌丝形成很粗的索状物,菌丝之间分泌有由α1—4葡聚糖,β1—4葡聚糖组成的粘液,这些物质在菌索表面受氧化颜色变深,形成坚固外层一“皮层”。菌丝的“分生组织”代替菌丝正常地顶端生长。蜜环菌菌索的生长点在呈根冠状结构尖端后25 The success or failure of artificial cultivation of Gastrodia elata, the level of yield and Cordyceps fungus is closely related to the growth of bacteria, grasp the biological characteristics of Armillaria grisea and infection principle, in order to facilitate the production of bacteria in the growth of environmental conditions. Meloidogyne mycelium is a very thick cord-like material, the mycelium secreted by the α1-4 glucan, β1-4 glucan mucus, these substances in the surface of the strain by the oxidation of the darker, Form a strong outer layer of “skin.” Mycelium “meristem” instead of mycelium normal top growth. Meloidogyne growth points in the root tip of the coronal structure after 25