Aurantimonas marianensis sp. nov., isolated from deep-sea sediment of the Mariana Trench.
Int J Syst Evol Microbiol
; 73(4)2023 Apr.
Article
de En
| MEDLINE
| ID: mdl-37040429
ABSTRACT
A novel strain, designated as LRZ36T, 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 LRZ36T based on 16S rRNA gene sequences revealed a lineage in the family Aurantimonadaceae but distinct from the most closely related species Aurantimonas marina CGMCC 1.17725T, 'Aurantimonas litoralis' KCTC 12094 and Aurantimonas coralicida DSM 14790T with sequence identities of 99.4â%, 98.0 and 97.9â%, respectively. The genome of LRZ36T was 3.8 Mbp in size with a DNA G+C content of 64.8â%, containing 3623 predicted coding genes. LRZ36T showed average nucleotide identity values of 89.8â%, 78.7 and 78.5â% and digital DNA-DNA hybridization values of 38.9â%, 21.7 and 21.6â% with A. marina CGMCC 1.17725T, 'A. litoralis' KCTC 12094 and A. coralicida DSM 14790T, respectively. The major respiratory quinone was ubiquinone-10 (Q-10), and the predominant fatty acids were C18ââ1ω7c (74.4â%) and C16ââ0 (12.1â%). The polar lipids in LRZ36T 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, LRZ36T represents a novel species of the genus Aurantimonas, for which the name Aurantimonas marianensis sp. nov. is proposed. The type strain is LRZ36T (= KCTC 92065T = GDMCC 1.2985T=MCCC 1K07227T).
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Eau de mer
/
Acides gras
Langue:
En
Journal:
Int J Syst Evol Microbiol
Sujet du journal:
MICROBIOLOGIA
Année:
2023
Type de document:
Article