A novel planctomycetal strain, designated ElP^T, was isolated from an alga in the shallow hydrothermal vent system close to Panarea Island in the Tyrrhenian Sea. Cells of strain ElP^T are spherical, form pink colonies and display typical planctomycetal characteristics including division by budding and presence of crateriform structures. Strain ElP^T has a mesophilic (optimum at 30 °C) and neutrophilic (optimum at pH 7.5) growth profile, is aerobic and heterotrophic. It reaches a generation time of 29 h (µ_max = 0.024 h⁻¹). The strain has a genome size of 9.40 Mb with a G + C content of 71.1% and harbours five plasmids, the highest number observed in the phylum Planctomycetes thus far. Phylogenetically, the strain represents a novel species of the recently described genus Tautonia in the family Isosphaeraceae. A characteristic feature of the strain is its tendency to attach strongly to a range of plastic surfaces. We thus propose the name Tautonia plasticadhaerens sp. nov. for the novel species, represented by the type strain ElP^T (DSM 101012^T = LMG 29141^T).

从靠近第勒尼安海 Panarea 岛的浅层热液喷口系统中的一种藻类中分离出一种名为 ElP ^{T 的}新型浮游菌菌株。ElP ^T菌株的细胞是球形的，形成粉红色的菌落，并显示出典型的浮游菌特征，包括通过出芽分裂和存在坑状结构。菌株 ElP ^T具有中温（在 30 °C 下最佳）和中性（在 pH 7.5 下最佳）的生长曲线，是有氧和异养的。它达到了 29 小时的生成时间（μ _max  = 0.024 h ^-1）。该菌株的基因组大小为 9.40 Mb，G + C 含量为 71.1%，并含有五个质粒，是浮菌门中观察到的最高数量到目前为止。系统发育，该菌株代表最近描述属的一个新种Tautonia在家庭Isosphaeraceae。应变的一个特征是它倾向于强烈地附着在一系列塑料表面上。因此，我们建议将Tautoniaplasticadhaerens sp命名为Tautoniaplasticadhaerens sp。十一月 对于新物种，由类型菌株 ElP ^T (DSM 101012 ^T  = LMG 29141 ^T ) 表示。