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用竹丛枝病病枝梢端和竹瘤座菌的子实体分离,获得竹瘤座菌的纯培养。病菌在PDA培养基上生长很慢,菌落呈白色乳酪状,为分生孢子。对嫩梢未展开的心叶喇叭口内(生长点),注入孢子悬浮液,可使新梢发病,潜育期在40天以上。接种发病枝症状及其发展过程和自然新发病枝一致,再分离获得原菌种,证明竹丛枝病是由竹瘤座菌Balansia take(Miyake)Hara=Aciculosporium take Miyake侵染所致。新发病枝初为细长、叶小,单根蔓枝,到第三年才形成典型丛枝症状。文章还对症状发展过程作了详细描述。竹丛枝病在国内各地普遍发生,不仅淡、刚竹,而且毛竹在有些地方发病也很严重。重病竹林发笋少而细,逐渐衰败,成为发展竹用材林和食笋用林的障阻之一。
Bamboo shoot branches with disease tip and the endobronchial fruiting body separation, access to pure culture of H. The germs grow slowly on PDA medium with white cheeses and conidia. On the young tip of the unexpanded heart bell mouth (growth point), into the spore suspension, the shoot can make the disease, the incubation period of 40 days or more. Inoculation of the symptoms and development of the disease branch and its natural development process consistent with the new branch, and then isolated the original strain, proven bamboo shoot disease is caused by the B. Albicans Balansia take (Miyake) Hara = Aciculosporium take Miyake infection. New onset of early branches for the slender, small leaves, single root sticks, to the third year to form typical symptoms of bush. The article also described the process of symptom development in detail. Bamboo witches broom disease occurs throughout the country, not only light, just bamboo, and bamboo in some places the incidence is also very serious. Serious bamboo shoots small and thin bamboo shoots, and gradually decay, as the development of bamboo timber forest and bamboo shoots with one of the obstacles.