Rhodopirellula aestuarii sp. nov., a novel member of the genus Rhodopirellula isolated from brackish sediments collected in the Tagus River estuary,Portugal |
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| Affiliation: | 1. Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal;2. CIIMAR/CIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal;3. Luxembourg Institute of Science and Technology (LIST), 41 rue du Brill, L-4422 Belvaux, Luxemburg;4. The Faculty of Science, Technology and Medicine (FSTM), University of Luxembourg, Luxemburg;5. Laboratório de Biologia Celular, Instituto de Ciências Biomédicas Abel Salazar, ICBAS, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;1. Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences, Moscow, Russia;2. Department of Biotechnology, Section of Environmental Biotechnology, TU Delft, The Netherlands;3. Institute of Polar Research, ISP-CNR, Messina, Italy;4. IAMC-CNR, Messina, Italy;5. NIOZ Royal Netherlands Institute for Sea Research, Department of Marine Microbiology and Biogeochemistry, and Utrecht University, Utrecht, The Netherlands;1. Ru?er Bo?kovi? Institute, Division of Materials Chemistry, Laboratory for Precipitation Processes, Bijeni?ka cesta 54, 10 000 Zagreb, Croatia;2. Croatian Geological Survey, Milan Sachs 2 Street, 10 000 Zagreb, Croatia;3. Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Djerassiplatz 1, 1030 Vienna, Austria;4. Department of Laboratory Medicine, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria;5. University of Vienna, Department of Microbiology and Ecosystem Science, Divison of Microbial Ecology, Djerassiplatz 1, 1030 Vienna, Austria;6. Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Split, Croatia;1. Laboratory for Microbial Resources, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, PR China;2. Jiangsu Key Laboratory for Organic Solid Waste Utilization, Educational Ministry Engineering Center of Resource-saving Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing 210095, PR China;3. Yunnan Institute of Microbiology, Key Laboratory for Conservation and Utilization of Bio-Resource, and Key Laboratory for Microbial Resources of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming 650091, PR China;1. Winogradsky Institute of Microbiology, Research Centre of Biotechnology RAS, 7/2 Prospekt 60-letiya Oktyabrya, 117312 Moscow, Russia;2. Gubkin University, 65/1 Leninsky Prospect, 119991 Moscow, Russia |
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| Abstract: | Bacteria within the phylum Planctomycetota are biologically relevant due to unique characteristics among prokaryotes. Members of the genus Rhodopirellula can be abundant in marine habitats, however, only six species are currently validly described. In this study, we expand the explored genus diversity by formally describing a novel species. The pink-coloured strain ICT_H3.1T was isolated from brackish sediments collected in the Tagus estuary (Portugal) and a 16S rRNA gene sequence-based analysis placed this strain into the genus Rhodopirellula (family Pirellulaceae). The closest type strain is Rhodopirellula rubra LF2T, suggested by a similarity of 98.4% of the 16S rRNA gene sequence. Strain ICT_H3.1T is heterotrophic, aerobic and able to grow under microaerobic conditions. The strain grows between 15 and 37 °C, over a range of pH 6.5 to 11.0 and from 1 to 8% (w/v) NaCl. Several nitrogen and carbon sources were utilized by the novel isolate. Cells have an elongated pear-shape with 2.0 ± 0.3 × 0.9 ± 0.2 µm in size. Cells of strain ICT_H3.1T cluster in rosettes through a holdfast structure and divide by budding. Younger cells are motile. Ultrathin cell sections show cytoplasmic membrane invaginations and polar fimbriae. The genome size is 9,072,081 base pairs with a DNA G + C content of 56.1 mol%. Genomic, physiological and morphological comparison of strain ICT_H3.1T with its relatives suggest that it belongs to a novel species within the genus Rhodopirellula. Hence, we propose the name Rhodopirellula aestuarii sp. nov., represented by ICT_H3.1T (=CECT30431T = LMG32464T) as the type strain of this novel species.16S rRNA gene accession number: GenBank = OK001858.Genome accession number: The Whole Genome Shotgun project has been deposited at DDBJ/ENA/GenBank under the accession JAMQBK000000000. The version described in this paper is version JAMQBK010000000. |
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