Abstract
A novel planctomycetal strain, designated Pla85_3_4T, was isolated from the surface of wood incubated at the discharge of a wastewater treatment plant in the Warnow river near Rostock, Germany. Cells of the novel strain have a cell envelope architecture resembling that of Gram-negative bacteria, are round to pear-shaped (length: 2.2 ± 0.4 µm, width: 1.2 ± 0.3 µm), form aggregates and divide by polar budding. Colonies have a cream colour. Strain Pla85_3_4T grows at ranges of 10–30 °C (optimum 26 °C) and at pH 6.5–10.0 (optimum 7.5), and has a doubling time of 26 h. Phylogenetically, strain Pla85_3_4T (DSM 103796T = LMG 29741T) is concluded to represent a novel species of a novel genus within the family Pirellulaceae, for which we propose the name Lignipirellula cremea gen. nov., sp. nov.
Highlights
Planctomycetes is a phylum of bacteria which were once thought to have several exceptional eukaryotelike traits (Devos et al 2013; Devos and Reynaud 2010; Fuerst and Sagulenko 2011; Fuerst and Webb 1991; Konig et al 1984; Lindsay et al 1997; Lonhienne et al 2010)
Pla85_3_4T (DSM 103796T = LMG 29741T) is concluded to represent a novel species of a novel genus within the family Pirellulaceae, for which we propose the name Lignipirellula cremea gen. nov., sp. nov
Based on 16S rRNA sequence analysis and multi-locus sequence analysis (MLSA), the isolated strain Pla85_3_4T clusters within the family Pirellulaceae (Fig. 1). 16S rRNA gene sequence identities to other current genera of this family range from 87.7 to 89.2% (Fig. 2)
Summary
Planctomycetes is a phylum of bacteria which were once thought to have several exceptional eukaryotelike traits (Devos et al 2013; Devos and Reynaud 2010; Fuerst and Sagulenko 2011; Fuerst and Webb 1991; Konig et al 1984; Lindsay et al 1997; Lonhienne et al 2010) These have since been re-examined and re-interpreted (Acehan et al 2013; Boedeker et al 2017; Jeske et al 2015; Jogler 2014; Jogler et al 2011; Jogler and Jogler 2013; Neumann et al 2014; Rast et al 2017; Rivas-Marin et al 2016b; Rivas-Marın and Devos 2018; Santarella-Mellwig et al 2013; van Teeseling et al 2015). Planctomycetes have been found on decomposing wood in natural temperate forests by 16S rRNA gene analysis (Tlaskal et al 2017), but to date only one other Planctomycete, Singulisphaera mucilagenosa, has been isolated from (degrading) wood (Zaicnikova et al 2011)
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