TAXONOMIC AND PHYLOGENETIC STUDIES ON A NEW TAXON OF BUDDING, HYPHAL PROTEOBACTERIA, HIRSCHIA-BALTICA GEN-NOV, SP-NOV
TAXONOMIC AND PHYLOGENETIC STUDIES ON A NEW TAXON OF BUDDING, HYPHAL PROTEOBACTERIA, HIRSCHIA-BALTICA GEN-NOV, SP-NOV
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DOI：
10.1099/00207713-40-4-443
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发表时间：
1990-10-01
期刊：
影响因子：
--
通讯作者：
STACKEBRANDT, E
中科院分区：
文献类型：
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作者：
SCHLESNER, H;BARTELS, C;STACKEBRANDT, E
从波罗的海分离到4株具有相似化学分类学特征的芽生菌丝细菌。DNA-DNA杂交结果表明，其中3个新分离物与其它3个分离物亲缘关系较近，而第4个分离物与其它3个分离物的亲缘关系较近。菌株IFAM 1418 T（T =型菌株）的16 S rRNA的序列特征和高阶结构细节分析表明，该分离物与变形菌纲的α亚类相关。虽然我们的分离物在形态上类似于Hyphomicrobium属和Hyphomonas属的成员，但根据其DNA鸟嘌呤加胞嘧啶含量明显较低，排除了对这些属中任何一个的分配。建议将这两种微生物归为一个新属，波罗的海Hirschia baltica是该属的模式种，H. baltica是菌株IFAM 1418（= DSM 5838）。
Four strains of budding, hyphal bacteria, which had very similar chemotaxonomic properties, were isolated from Baltic Sea. The results of DNA-DNA hybridization experiments, indicated that three of the new isolates were closely related, while the fourth was only moderately related to the other three. Sequence signature and higher-order structural detail analyses of the 16S rRNA of strain IFAM 1418T (T = type strain) indicated that this isolate is related to the alpha subclass of the class Proteobacteria. Although our isolates resemble members of the genera Hyphomicrobium and Hyphomonas in morphology, assignment to either of these genera was excluded on the basis of their markedly lower DNA guanine-plus-cytosine contents. We propose that these organisms should be placed in a new genus, Hirschia baltica is the type species of this genus, and type strain of H. baltica is strain IFAM 1418 (= DSM 5838).