Aurantimonas marianensis sp. nov., isolated from deep-sea sediment of the Mariana Trench. Issue 4 (11th April 2023)

• Record Type: Journal Article
• Authors: Liu, Renzong; Sun, Yi; Ma, Meina; Han, Liyuan; Gao, Sheng; Zhang, Youming; Yan, Fu
• Is Part Of: International journal of systematic and evolutionary microbiology. Volume 73:Issue 4(2023)
• Publication Date: 2023-04-11
• Subjects: Aurantimonas marianensis -- polyphasic taxanomy -- Mariana Trench; Microbiology -- Periodicals; Microbiology -- Classification -- Periodicals; 579
• DOI: 10.1099/ijsem.0.005816
• Languages: English
• ISSNs: 1466-5026

Abstract

Abstract : A novel strain, designated as LRZ36 T, was isolated from deep-sea sediment (from a depth of 5400 m) from the Mariana Trench. Cells of this strain are rod-shaped, Gram-stain-negative, strictly aerobic and non-motile. Phylogenetic analysis of LRZ36 T based on 16S rRNA gene sequences revealed a lineage in the family Aurantimonadaceae but distinct from the most closely related species Aurantimonas marina CGMCC 1.17725 T, ' Aurantimonas litoralis ' KCTC 12094 and Aurantimonas coralicida DSM 14790 T with sequence identities of 99.4 %, 98.0 and 97.9 %, respectively. The genome of LRZ36 T was 3.8 Mbp in size with a DNA G+C content of 64.8 %, containing 3623 predicted coding genes. LRZ36 T showed average nucleotide identity values of 89.8 %, 78.7 and 78.5 % and digital DNA–DNA hybridization values of 38.9 %, 21.7 and 21.6 % with A. marina CGMCC 1.17725 T, ' A. litoralis ' KCTC 12094 and A. coralicida DSM 14790 T, respectively. The major respiratory quinone was ubiquinone-10 (Q-10), and the predominant fatty acids were C18 : 1 ω7 c (74.4 %) and C16 : 0 (12.1 %). The polar lipids in LRZ36 T are diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylmethylethanolamine, phosphatidylcholine, phosphatidylinositol mannoside, an unidentified aminophospholipid, three unidentified lipids, three unidentified phospholipids and two unidentified aminolipids. On the basis of genotypic and phenotypic evidence, LRZ36 T represents a novel species of the genus Aurantimonas, for which the name Aurantimonas marianensis sp. nov. is proposed. The type strain is LRZ36 T (= KCTC 92065 T = GDMCC 1.2985 T =MCCC 1K07227 T ).