Pseudidiomarina gelatinasegens sp. nov., isolated from surface sediment of the Terra Nova Bay, Antarctica. Issue 2 (7th November 2019)

• Record Type: Journal Article
• Authors: Li, Anzhang; Zhang, Mingxia; Xu, Shuaishuai; Chen, Meng; Yao, Qing; Zhu, Hong-Hui
• Is Part Of: International journal of systematic and evolutionary microbiology. Volume 70:Issue 2(2020)
• Page Start: 708
• Page End: 714
• Publication Date: 2019-11-07
• Subjects: Pseudidiomarina -- Antarctica -- polyphasic taxonomy -- marine sediment -- Alteromonadales; Microbiology -- Periodicals; Microbiology -- Classification -- Periodicals; 579
• DOI: 10.1099/ijsem.0.003760
• Languages: English
• ISSNs: 1466-5026

Abstract

Abstract : Polyphasic taxonomic analysis was performed to characterize a novel bacterium, which was isolated from surface sediment of the Terra Nova Bay, Antarctica, and designated as R04H25 T . The cells of the isolate were Gram-stain-negative, aerobic, non-motile, slightly curved rods. Growth occurred at 4–42 °C, pH 7.0–9.5, and in 1–15 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences indicated that strain R04H25 T formed an independent lineage within the genus Pseudidiomarina and its nearest neighbours were Pseudidiomarina donghaiensis 908033 T (98.2 %), Pseudidiomarina marina PIM1 T (98.1 %), Pseudidiomarina woesei W11 T (97.8 %), Pseudidiomarina maritima 908087 T (97.1 %) and Pseudidiomarina tainanensis PIN1 T (97.0 %). The average nucleotide identities between strain R04H25 T and the nearest neighbours were 76.2–77.7 %. The major fatty acids were iso-C17 : 0, summed feature 9, iso-C15 : 0, C16 : 0 and iso-C11 : 0 3-OH. The polar lipids comprised phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, an unidentified aminophospholipid, three unidentified glycolipids and two unidentified lipids. The predominant respiratory quinone was ubiquinone 8. The genomic DNA G+C content was 48.2 mol%. On the basis of the phylogenetic, physiological and chemotaxonomic results, we propose a novel species named as Pseudidiomarina gelatinasegens sp. nov. in the genus Pseudidiomarina, with the type strain R04H25 T (=GDMCC 1.1503 T =KCTC 62911 T ).