对引起首例人类感染的葡萄孢维朗那霉的研究

STUDIES ON VERONAEA BOTRYOSA,AGENT OF THE FIRST HUMAN CASE

作者对引起首例人类感染的致病菌葡萄孢维朗那霉(Veronaea botryosa Ciferri etMontemartini)进行了一系列实验研究。观察了其在各种培养基上菌落的特点和光镜、扫描电镜下的形态。其产孢方式为合轴式,产孢细胞较长,产生许多分生孢子,多为双细胞,个别的为3—4个细胞,测定了其温度耐受和其它生理特性。该菌最高生长温度为35℃,液化明胶,水解淀粉,尿素酶阳性,同化硝酸钾,对维生素B_1及B_2无特殊需要,不能水解牛乳。

The authors studied the strain of Veronaea botryosa which was repeatly isolated from the lesions of a human infection case.The fungus was observed under the light and scanning electron microscope.The physiological characteristics of this fungus were stu- died.The conidiogenous cells are elongated.They produce many conidia which contain 1 or 2 septa even more.When the conidia were released,there were a lot of denticles left,with sym- podial arrangement.The maximum growth temperature of this fungus was 35℃.The fungus did liquify gelatin and hydrolize starch.It was positive for urease test.It assimilated potassium nitrate very well,but did not hydrolize skim milk and did not show any special need of vi- tamine B_1 and B_2.