Centro Andaluz de Biología del Desarrollo, CSIC, Universidad Pablo de Olavide, Seville, Spain.
Institute for Biological Interfaces 5, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany.
Antonie Van Leeuwenhoek. 2020 Dec;113(12):1901-1913. doi: 10.1007/s10482-020-01436-z. Epub 2020 Jun 25.
Planctomycetes are ubiquitous bacteria with environmental and biotechnological relevance. Axenic cultures of planctomycetal strains are the basis to analyse their unusual biology and largely uncharacterised metabolism in more detail. Here, we describe strain Mal4 isolated from marine sediments close to Palma de Mallorca, Spain. Strain Mal4 displays common planctomycetal features, such as division by polar budding and the presence of fimbriae and crateriform structures on the cell surface. Cell growth was observed at ranges of 10-39 °C (optimum at 31 °C) and pH 6.5-9.0 (optimum at 7.5). The novel strain shows as pear-shaped cells of 2.0 ± 0.2 × 1.4 ± 0.1 µm and is one of the rare examples of orange colony-forming Planctomycetes. Its genome has a size of 7.7 Mb with a G+C content of 63.4%. Phylogenetically, we conclude that strain Mal4 (= DSM 100296= LMG 29133) is the type strain representing the type species of a novel genus, for which we propose the name Maioricimonas rarisocia gen. nov., sp. nov.
浮霉菌是具有环境和生物技术相关性的普遍存在的细菌。浮霉菌株的无菌培养是分析其不寻常的生物学特性和大部分未被描述的代谢途径的基础。本文描述了从西班牙帕尔马附近的海洋沉积物中分离到的菌株 Mal4。该菌株 Mal4 显示出常见的浮霉菌特征，如极性出芽分裂以及细胞表面存在纤毛和坑状结构。在 10-39°C（最佳温度为 31°C）和 pH 6.5-9.0（最佳 pH 值为 7.5）范围内观察到细胞生长。该新型菌株呈梨形，大小为 2.0±0.2μm×1.4±0.1μm，是橙色菌落形成浮霉菌的罕见实例之一。其基因组大小为 7.7 Mb，G+C 含量为 63.4%。系统发育分析表明，菌株 Mal4（=DSM 100296=LMG 29133）是一种新型属的模式菌株，我们提议将其命名为 Maioricimonas rarisocia gen. nov.，sp. nov.。
