鞘氨醇单胞菌属和根单胞菌属作为变形菌门α-4亚类非光合成员的系统发育证据。
Phylogenetic evidence for Sphingomonas and Rhizomonas as nonphotosynthetic members of the alpha-4 subclass of the Proteobacteria.
作者信息
Takeuchi M, Sawada H, Oyaizu H, Yokota A
机构信息
Institute for Fermentation, Osaka, Japan.
出版信息
Int J Syst Bacteriol. 1994 Apr;44(2):308-14. doi: 10.1099/00207713-44-2-308.
To clarify the taxonomic relationships of the genera Rhizomonas and Sphingomonas, the 16S rRNA sequence of Rhizomonas suberifaciens IFO 15211T (T = type strain) was determined. A phylogenetic analysis of aligned 16S rRNA gene sequences revealed that eight species of the genus Sphingomonas and R. suberifaciens are closely related to Erythrobacter longus and Porphyrobacter neustonensis and, therefore, belong in the alpha-4 subclass of the Proteobacteria. Within this subclass, Sphingomonas species and R. suberifaciens are phylogenetically interrelated and comprise several subgroups. Our findings show that the genus and species definitions of these organisms are in need of revision.
为了阐明根单胞菌属（Rhizomonas）和鞘氨醇单胞菌属（Sphingomonas）的分类关系，测定了根瘤菌（Rhizomonas suberifaciens）IFO 15211T（T = 模式菌株）的16S rRNA序列。对排列好的16S rRNA基因序列进行系统发育分析表明，鞘氨醇单胞菌属的8个种和根瘤菌与长红杆菌（Erythrobacter longus）和海洋紫色杆菌（Porphyrobacter neustonensis）密切相关，因此属于变形菌门α-4亚类。在这个亚类中，鞘氨醇单胞菌属的种和根瘤菌在系统发育上相互关联，并包括几个亚组。我们的研究结果表明，这些生物的属和种的定义需要修订。
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