Tautonia plasticadhaerens sp. nov., a novel species in the family Isosphaeraceae isolated from an alga in a hydrothermal area of the Eolian Archipelago

• Published in: Antonie van Leeuwenhoek 2020-12, Vol.113 (12), p.1889-1900
• Main Authors: Jogler, Christian, Wiegand, Sandra, Boedeker, Christian, Heuer, Anja, Peeters, Stijn H., Jogler, Mareike, Jetten, Mike S. M., Rohde, Manfred, Kallscheuer, Nicolai
• Format: Article
• Language: English
• Subjects: Algae; Archipelagoes; Bacterial Typing Techniques; Base Composition; Biomedical and Life Sciences; DNA, Bacterial; Fatty Acids - analysis; Genomes; Hydrothermal Vents; Leukocytes (neutrophilic); Life Sciences; Medical Microbiology; Microbiology; New species; Original Paper; Phylogeny; Plant Sciences; Plasmids; RNA, Ribosomal, 16S; Sequence Analysis, DNA; Soil Science & Conservation
• ISSN: 0003-6072; 1572-9699
• DOI: 10.1007/s10482-020-01424-3

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 ).