Biological species of Armillaria in Japan and its ecological features

为了阐明日本蜜环菌的生物学种类及其生态学特征，从结果中可以看出以下事实。在日本的6种蜜环菌中，有4种是高卢蜜环菌（A.gallica）、奥氏蜜环菌（A.ostoyae）、头足蜜环菌（A.cepistipes）和蜜环菌（A. mellea）。并且，其中一种与北美生物物种IX（NABS IX）相容。从核DNA含量分析，认为蜜环菌的核相为同宗配合.通过光温条件的调控，在人工培养基中形成了鸡枣、骨枣、蜜环菌和毛枣的子实体.在日本赤松蜜环菌根腐病受害林分中，奥氏蜜环菌是唯一的病原菌。同时，高卢曲霉和蜜环菌不致病。

To elucidate biological species of Armillaria in Japan and its ecological features, the following facts are evident from the results.1. Among 6 biological species of Armillaria in Japan, four of them are A.gallica, A.ostoyae, A.cepistipes, and A.mellea. And, one of them is compatible with North American biological species IX (NABS IX).2. From the analysis of nuclear DNA content, nuclear phases of A.mellea are considered to be homothallism.3. From the regulation of light and temperature conditions, fruit bodies of A.gallica, A.ostoyae, A.mellea, and A.tabescens are formed in the artificial media.4. At the damaged stands of Armillaria root rot on Japanese red pines, A.ostoyae is only pathogenic fungi. Meanwhile, A.gallica and A.mellea are not pathogenic.