Wang Jenny, Jenkins Cheryl, Webb Richard I, Fuerst John A
Department of Microbiology and Parasitology, School of Molecular and Microbial Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia.
Appl Environ Microbiol. 2002 Jan;68(1):417-22. doi: 10.1128/AEM.68.1.417-422.2002.
New cultured strains of the planctomycete division (order Planctomycetales) of the domain Bacteria related to species in the genera Gemmata and Isosphaera were isolated from soil, freshwater, and a laboratory ampicillin solution. Phylogenetic analysis of the 16S rRNA gene from eight representative isolates showed that all the isolates were members of the planctomycete division. Six isolates clustered with Gemmata obscuriglobus and related strains, while two isolates clustered with Isosphaera pallida. A double-membrane-bounded nucleoid was observed in Gemmata-related isolates but not in Isosphaera-related isolates, consistent with the ultrastructures of existing species of each genus. Two isolates from this study represent the first planctomycetes successfully cultivated from soil.
从土壤、淡水和实验室氨苄青霉素溶液中分离出了与芽殖菌属(Gemmata)和等球藻属(Isosphaera)物种相关的细菌域浮霉菌门(浮霉菌目)的新型培养菌株。对八个代表性分离株的16S rRNA基因进行系统发育分析表明,所有分离株均为浮霉菌门成员。六个分离株与隐藏芽殖菌(Gemmata obscuriglobus)及相关菌株聚类,而两个分离株与苍白等球藻(Isosphaera pallida)聚类。在与芽殖菌相关的分离株中观察到双膜包被的拟核,而在与等球藻相关的分离株中未观察到,这与各属现有物种的超微结构一致。本研究中的两个分离株代表了首次成功从土壤中培养出的浮霉菌。