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从本省浦城、明溪二个厚朴主产区采集的厚朴苗根腐病标本中,分离接种得到4个致病菌株,它们具有不同程度的致病力。4个菌株通过PSA、麦粒、米饭培养基等培养性状观察、孢子形态及孢子形成方式镜检,结果显示它们的菌落生长速度、颜色、质地;大、小型分生孢子与厚垣孢子的形态、大小及孢子形成方式等基本相似,均鉴定为镰孢属(Fusarium Link ex Fr.)美丽组(Section ElegansWr.)的尖镰孢菌(Fusarium oxysporum Schlecht)
From the Pucheng, Mingxi two Magnoliaceae main producing areas collected Magnoliaceae root rot specimens, isolated and inoculated four pathogenic strains, they have varying degrees of virulence. Four strains were examined by culture traits such as PSA, wheat grain and rice medium, microscopic examination of spore morphology and spore formation. The results showed that the growth rate, the color and the texture of the colonies were similar. The morphology of large and small conidia and chlamydospore (Fusarium Link ex Fr.) Section Fusarium oxysporum Schlecht (Fusarium Link ex Fr.)