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本文报道油桐枝枯病病原菌—油桐丛赤壳,新种(Nectria aleuritidia Chen etZhang sp·nov·)的无性时期,属半知菌亚门、丝孢纲,丛梗孢科、桂孢属。根据分离培养形态特征,鉴定为一新种,命名油桐柱孢(Cylindrocarpon aleuritum sp·nov·)。 在研究油桐枝枯病中,鉴定了病原菌的有性时期,命名为油桐丛赤壳,新种(Nectria aleuritidia Chen et Zhang sp·nov·),同时发现其无性时期。 无性时期病原菌引起的油桐嫩梢发病,经接种试验,嫩梢感染率达100％,在林间,潮湿时产生无性时期,夏、冬季出现有性时期。
In this paper, we report that during the asexual period of the disease-causing strain of tung oil leaf twig, Nectria aleuritidia Chen et Zhang sp sp nov, . According to the morphological characteristics of the isolated culture, a new species was identified and named Cylindrocarpon aleuritum sp · nov ·. In the study of tung oil leaf blight, the identification of the sexual period of pathogens, named tung shell, new species (Nectria aleuritidia Chen et Zhang sp · nov ·), also found that the climax of the period. Asexual pathogens caused by the onset of the new shoots of Tongtong, the inoculation test, shoot infection rate of 100%, in the forest, moist produce asexual period, summer, winter appear sexual period.