Abstract
A Gram-staining positive and nonmotile strain designated SYSUP0005T was isolated from tubers of Gastrodia elata Blume. The 16S rRNA gene sequence result showed that strain SYSUP0005T shared highest sequence similarity with the type strain of Amycolatopsis cappadoca (95.7%), Amycolatopsis taiwanensis (95.4%), Amycolatopsis pigmentata (95.4%), Amycolatopsis ruanii (95.1%), and Amycolatopsis helveola (94.8%). Growth occurs at 14–37 °C (optimum temperature, 28 °C), at pH 6–9 (optimum, pH 8) and in the presence of up to 6% (w/v) NaCl. Strain SYSUP0005T had meso-diaminopimelic acid in its peptidoglycan. The whole cell sugars were galactose, ribose, and xylose. The predominant menaquinone was MK-9(H4) and minor menaquinones were MK-9(H2) and MK-9(H8). The polar lipids were diphosphatidylglycerol (DPG); phosphatidylmonomethylethanolamine (PME), phosphatidylethanolamine (PE), phosphatidylinositol (PI), unidentified glycolipid (GL), and unidentified phospholipid (PL). The genomic DNA G + C content was 69.6 mol%. The major fatty acids were iso-C16:0, anteiso-C17:0, C16:0, iso-C14:0, C17:1 ω6c, C17:0, and Summed Feature 3 (C16:1 ω7c/C16:1 ω6c). On the basis of the phenotypic, phylogenetic, chemotaxonomic characters, and genomic comparison, SYSUP0005T represents a novel species of the genus Amycolatopsis, for which the name Amycolatopsis alkalitolerans sp. nov. is proposed. The type strain is SYSUP0005T (=KCTC 49024T = CGMCC4.7463T).
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Acknowledgements
The authors are grateful to Professor Jung-Sook Lee (KCTC, Korea) for kindly providing the reference type strain. This research was supported by Natural Science Foundation of Guangdong Province, PR China (number 2016A030312003).
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Narsing Rao, M.P., Li, YQ., Zhang, H. et al. Amycolatopsis alkalitolerans sp. nov., isolated from Gastrodia elata Blume. J Antibiot 73, 35–39 (2020). https://doi.org/10.1038/s41429-019-0222-8
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DOI: https://doi.org/10.1038/s41429-019-0222-8
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