Description of Polystyrenella longa gen. nov., sp. nov., isolated from polystyrene particles incubated in the Baltic Sea

Abstract

Planctomycetes occur in almost all aquatic ecosystems on earth. They have a remarkable cell biology, and members of the orders Planctomycetales and Pirellulales feature cell division by polar budding, perform a lifestyle switch from sessile to motile cells and have an enlarged periplasmic space. Here, we characterise a novel planctomycetal strain, Pla110T, isolated from the surface of polystyrene particles incubated in the Baltic Sea. After phylogenetic analysis, the strain could be placed in the family Planctomycetaceae. Strain Pla110T performs cell division by budding, has crateriform structures and grows in aggregates or rosettes. The strain is a chemoheterotroph, grows under mesophilic and neutrophilic conditions, and exhibited a doubling time of 21 h. Based on our phylogenetic and morphological characterisation, strain Pla110T (DSM 103387T = LMG 29693T) is concluded to represent a novel species belonging to a novel genus, for which we propose the name Polystyrenella longa gen. nov., sp. nov.

Parvularcula mediterranea sp. nov., isolated from marine plastic debris from Zakynthos Island, Greece

“…The importance of this study comes from the idea that the number of novel bacterial species isolated from plastic surfaces is quite low [7,8]. Moreover, novel bacterial species isolated from plastic surfaces might be investigated in the future to understand their role in the 'plastisphere' [9].…”

Updates to the recently introduced family Lacipirellulaceae in the phylum Planctomycetes: isolation of strains belonging to the novel genera Aeoliella, Botrimarina, Pirellulimonas and Pseudobythopirellula and the novel species Bythopirellula polymerisocia and Posidoniimonas corsicana

“…Maximum likelihood 16S rRNA gene sequence-based phylogeny was computed for the eight novel strains, the type strains of all recently described planctomycetal species (as of June 2020) (Kallscheuer et al 2020b;Kumar et al 2020;Peeters et al 2020;Rivas-Marin et al 2020a, b;Schubert et al 2020) and all isolates recently published, but not yet described (Wiegand et al 2020). The 16S rRNA gene sequences were aligned with SINA (Pruesse et al 2012).…”

Additions to the genus Gimesia: description of Gimesia alba sp. nov., Gimesia algae sp. nov., Gimesia aquarii sp. nov., Gimesia aquatilis sp. nov., Gimesia fumaroli sp. nov. and Gimesia panareensis sp. nov., isolated from aquatic habitats of the Northern Hemisphere

“…16S rRNA gene sequence-based phylogeny was computed for the strains described here and the type strains of reference species. The analysis also included strains described in the last year (Boersma et al 2019;Dedysh et al 2020a;Kallscheuer et al 2020b;Kohn et al 2016Kohn et al , 2019Kohn et al , 2020Kumar et al 2020;Peeters et al 2020;Rivas-Marin et al 2020a, b;Vitorino et al 2020) and strains recently published, but not yet described (Wiegand et al 2020). The 16S rRNA gene sequences were aligned with SINA (Pruesse et al 2012).…”