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Volume 73, Issue 10

, gen. nov., sp. nov., a novel bacterial species of the family that could produce flexirubin type pigments No Access

Abstract

Two Gram-stain-negative, non-spore-forming, rod-shaped, and obligately aerobic bacteria, designated strains CX-624 and cx-311, were isolated from soil samples in Qinghai Province, China. The two strains grew best at 28 °C on the plate with Tryptone soya agar (TSA). Cells formed circular, convex, translucent, smooth, and orange colonies with approximately 1.0 mm diameter after 2 days of incubation on TSA at 28 °C. The strains were oxidase-negative and catalase-positive. The predominant cellular fatty acids were iso-C and anteiso-C, and major polar lipids included phosphatidylethanolamine, an unidentified aminophospholipid, four unidentified lipids and an aminolipid. MK-6 was the sole menaquinone in strain CX-624. Comparative analysis of the nearly full-length 16S rRNA gene sequences showed strains CX-624 and cx-311 were member of the family , with the highest similarity to H38 (96.66 %), DSM 18015 (96.59 %), and DSM 18014 (96.53 %). Both phylogenetic analysis of the 16S rRNA gene and 177 core genes revealed that strains CX-624 and cx-311 formed an independent clade. Average nucleotide identity values (< 72.64 %), average amino-acid identity values (<72.61 %) and digital DNA–DNA hybridization (< 21.10 %) indicated that the strains CX-624 and cx-311 should constitute a novel genus. The DNA G+C contents of strains CX-624 and cx-311 were 43.0 mol% and 42.7 mol%. According to the data obtained in this study, strain CX-624 represents a novel species belonging to a novel genus of the , for which the name gen. nov., sp. nov. is proposed. The type strain is CX-624 (=GDMCC 1.1714 = JCM 33925).

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Keyword(s): flexirubin type pigments , genus Marnyiella , novel species , Tibetan soil samples , Weeksellaceae and whole-genome sequence
© 2023 The Authors
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2023-10-31
2024-05-08
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Marnyiella aurantia, gen. nov., sp. nov., a novel bacterial species of the family Weeksellaceae that could produce flexirubin type pigments
Int J Syst Evol Microbiol 73, 006020 (2023); https://doi.org/10.1099/ijsem.0.006020
/content/journal/ijsem/10.1099/ijsem.0.006020
/content/journal/ijsem/10.1099/ijsem.0.006020
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