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Stieleria varia sp. nov., isolated from wood particles in the Baltic Sea, constitutes a novel species in the family Pirellulaceae within the phylum Planctomycetes.
Antonie van Leeuwenhoek ( IF 2.6 ) Pub Date : 2020-08-14 , DOI: 10.1007/s10482-020-01456-9
Frank Surup 1, 2 , Sandra Wiegand 3 , Christian Boedeker 4 , Anja Heuer 4 , Stijn H Peeters 5 , Mareike Jogler 6 , Mike S M Jetten 5 , Manfred Rohde 7 , Christian Jogler 5, 6 , Nicolai Kallscheuer 5
Affiliation  

Species belonging to the bacterial phylum Planctomycetes are ubiquitous members of the microbial communities in aquatic environments and are frequently isolated from various biotic and abiotic surfaces in marine and limnic water bodies. Planctomycetes have large genomes of up to 12.4 Mb, follow complex lifestyles and display an uncommon cell biology; features which motivate the investigation of members of this phylum in greater detail. As a contribution to the current collection of axenic cultures of Planctomycetes, we here describe strain Pla52T isolated from wood particles in the Baltic Sea. Phylogenetic analysis places the strain in the family Pirellulaceae and suggests two species of the recently described genus Stieleria as current closest neighbours. Strain Pla52nT shows typical features of members of the class Planctomycetia, including division by polar budding and the presence of crateriform structures. Colonies of strain Pla52nT have a light orange colour, which is an unusual pigmentation compared to the majority of members in the phylum, which show either a pink to red pigmentation or entirely lack pigmentation. Optimal growth of strain Pla52nT at 33 °C and pH 7.5 indicates a mesophilic (i.e. with optimal growth between 20 and 45 °C) and neutrophilic growth profile. The strain is an aerobic heterotroph with motile daughter cells. Its genome has a size of 9.6 Mb and a G + C content of 56.0%. Polyphasic analyses justify delineation of the strain from described species within the genus Stieleria. Therefore, we conclude that strain Pla52nT = LMG 29463T = VKM B-3447T should be classified as the type strain of a novel species, for which we propose the name Stieleria varia sp. nov.



中文翻译:

变异型Stieleria varia sp。nov.,从波罗的海的木材颗粒中分离出来,构成了浮霉菌门 Pirellulaceae 中的一个新物种。

属于细菌门Planctomycetes 的物种是水生环境中微生物群落中无处不在的成员,并且经常从海洋和湖泊水体的各种生物和非生物表面中分离出来。Planctomycetes 具有高达 12.4 Mb 的大基因组,遵循复杂的生活方式并显示出不常见的细胞生物学;激发对该门成员进行更详细研究的特征。作为对目前浮游菌无菌培养物收集的贡献,我们在此描述了从波罗的海木材颗粒中分离出来的菌株 Pla52 T。系统发育分析将该菌株置于Pirellulaceae科,并表明最近描述的Stieleria属的两个物种作为当前最近的邻居。应变Pla52n Ť显示的类的成员的典型特征Planctomycetia,包括由极性出芽分裂和漏斗状结构的存在。菌株 Pla52n T 的菌落呈浅橙色,与门中的大多数成员相比,这是一种不寻常的色素沉着,后者显示出粉红色至红色的色素沉着或完全没有色素沉着。菌株 Pla52n T 的最佳生长在 33 °C 和 pH 值 7.5 下的生长表明中温(即在 20 到 45 °C 之间具有最佳生长)和中性粒细胞生长曲线。该菌株是具有运动子细胞的需氧异养菌。它的基因组大小为 9.6 Mb,G + C 含量为 56.0%。多相分析证明从Stieleria属内描述的物种中划定菌株是合理的。因此,我们得出结论,菌株 Pla52n T = LMG 29463 T = VKM B-3447 T 应归类为新物种的模式菌株,为此我们建议将其命名为Stieleria varia sp。十一月

更新日期:2020-08-14
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