Park Y H, Yim D G, Kim E, Kho Y H, Mheen T I, Lonsdale J, Goodfellow M
Korean Collection for Type Cultures, Korea Institute of Science and Technology, Daejeon.
J Gen Microbiol. 1991 Sep;137(9):2265-9. doi: 10.1099/00221287-137-9-2265.
Complete 5S ribosomal RNA sequences were obtained for four acidophilic actinomycetes, seven neutrophilic streptomycetes and a strain of Streptoverticillium baldaccii. All of the organisms contained RNAs belonging to the 120 nucleotide type. An evolutionary tree was generated after combining the test data with results from similar studies on representative Gram-positive bacteria. The acidophilic, neutrotolerant and neutrophilic actinomycetes were recovered in a distinct cluster that was equated with the genus Streptomyces. The sequence data support the view that the genera Chainia, Elytrosporangium, Kitasatoa and Microellobosporia should be considered as synonyms of the genus Streptomyces. The recovery of the Streptoverticillium baldaccii strain on the fringe of the Streptomyces cluster is also consistent with current trends in the taxonomy of these organisms. Further work is needed to determine the taxonomic status of the two streptomycete subgroups that comprised the streptomycete cluster.
获得了4株嗜酸放线菌、7株嗜中性链霉菌和1株巴氏链孢囊菌的完整5S核糖体RNA序列。所有这些微生物都含有属于120个核苷酸类型的RNA。将测试数据与对代表性革兰氏阳性菌的类似研究结果相结合后，构建了一棵进化树。嗜酸、耐中性和嗜中性放线菌聚集在一个独特的类群中，该类群等同于链霉菌属。序列数据支持以下观点，即链霉菌属、鞘孢囊菌属、北里孢菌属和小孢囊菌属应被视为链霉菌属的同义词。巴氏链孢囊菌菌株在链霉菌类群边缘的聚类情况也与这些微生物分类学的当前趋势一致。需要进一步开展工作来确定构成链霉菌类群的两个链霉菌亚群的分类地位。
