虽然大豆拟茎点霉菌Phomopsis longicolla主要是种传病原菌,但可以从植物的所有部位分离得到。在大豆茎基部可见稍凹陷的、不规则形状和大小的病斑,病斑边缘黑色。病斑内部可观察到Phomopsis spp.的典型特征,即分布着大的带有α和β分生孢子的分生孢子器。2种类型分生孢子的比率差异较大,但分生孢子器中β分生孢子占多数。这些繁殖体的存在表明,该症状可能是由Phomopsis sojae所引起。然而,在分离接种到营养培养基后,所有培养特性和形态特征及三个基因区域测序结 Although the soybean Phomopsis longicolla is primarily a pathogen, it can be isolated from all parts of the plant. At the base of the soybean stem, slightly depressed, irregularly shaped and sized lesions are visible, and the lesion edge is black. The typical feature of Phomopsis spp., Which is found within the lesion, is the distribution of large conidia with alpha and beta conidia. The ratio of the two types of conidia is quite different, but the majority of conidia in the conidia. The presence of these propagules suggests that the symptoms may be caused by Phomopsis sojae. However, after isolation and inoculation into the nutrient medium, all the culture characteristics and morphological characteristics and the sequence of the three gene regions