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|Title:||Nonomuraea antri sp. nov., an actinomycete isolated from cave soil in Thailand|
Wee Fei Aaron Teo
Wee Fei Aaron Teo
|Keywords:||Agricultural and Biological Sciences;Immunology and Microbiology|
|Abstract:||© 2020 The Authors. A novel actinobacterium, designated strain NN258T, was isolated from a cave soil sample collected from a karst cave at Khao No-Khao Kaeo, Nakhon Sawan province, Thailand. The morphological, chemotaxonomic and phylogenetic characteristics were consistent with its classification in the genus Nonomuraea. Strain NN258T showed the highest 16S rRNA gene sequence similarity values to Nonomuraea candida HMC10T, Nonomuraea mesophila 6K102T, Nonomuraea rubra DSM 43768T, Nonomuraea diastatica KC712T and Nonomuraea helvata IFO 14681T. The strain formed an extensively branched substrate and aerial mycelia. The whole-cell hydrolysates contained meso-diaminopimelic acid as the diagnostic diamino acid, with glucose, madurose, mannose and ribose as the whole-cell sugars. The polar lipids were diphosphatidylglycerol, phosphotidylmethylethanolamine, phosphatidylethanolamine, hydroxy-phosphatidylmonomethylethanolamine, hydroxy-phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside, two unidentified phospholipids, three unidentified sugar-containing phosphoaminolipids, an unidentified glycolipid and two unidentified lipids. The predominant menaquinone was MK-9(H4), with minor amounts of MK-9(H0), MK-9(H2) and MK-9(H6). Major cellular fatty acids (>10%) were iso-C 16: 0 and 10-methyl- C 17: 0. The G+C content of the genomic DNA was 71.0 mol%. The average nucleotide identity and digital DNA-DNA hybridization values between strain NN258T and the reference strains were 79.9-80.9 % and 26.1-27.0 %, respectively. On the basis of phenotypic, genotypic and phylogenetic data, strain NN258T represents a novel species of the genus Nonomuraea, for which the name Nonomuraea antri sp. nov. is proposed. The type strain is NN258T (=TBRC 11478T=NBRC 114269T).|
|Appears in Collections:||CMUL: Journal Articles|
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