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这群放线菌的主要特征是孢子成熟后孢子丝吸水使菌落表面形成褐黑色、褐紫色或黑色并带有粘性的湿斑,有时湿斑扩大成一片。这一特征并不经常在一切培养基上表现出来。吸水放线菌(Actinomyces hygroscopicus)这个种是Jensen1931年建立的。以后Waksman等采用这一资料,并称此菌为Streptomyces hygroscopicus。此外克拉西里尼科夫(Красильников)也描述过这种放线菌,不过克氏所描述的吸水特征,为气生菌丝体所吸收的水分凝结成小滴状缀于菌丝体枝上。显然与原始描述不同。因此,认为克氏所描述的吸水放线菌与原始描述的吸水放线菌大概是同名异种。1957年阎逊初建立的黑漆放线菌(Actinomyces atrolaccus)的主要特征与Jensen描述的吸水放线菌一致,故1959年阎氏将黑漆放线菌并入吸水放线菌,并把有吸水特征的其他类型的放线菌都归
The main characteristics of this group of actinomycetes spores after spore ripening water absorption to colony surface formation of brown, brown or purple and with wet sticky spots, and sometimes wet plaque expanded into one. This feature does not often appear in all media. Actinomyces hygroscopicus This strain was established by Jensen in 1931. After Waksman and other use of this information, and said the bacteria Streptomyces hygroscopicus. In addition, Krasiliukov (Красильников) also described this actinomycete, but Kettle described the water absorption characteristics, the moisture absorbed by the aerial mycelium condensation droplets into mycelium branches. Apparently different from the original description. Therefore, it is thought that the actinomycetes that is described by Kirschner proficiently belong to the same name as the originally described actinomycetes. The main features of Actinomyces atrolaccus, established by Johnson in 1957, are consistent with those of actinomycetes, described by Jensen. In 1959, however, Actinomyces was mixed with actinomycete, Other types of actinomycetes that absorb water are owned