1887

Abstract

A Gram-reaction-positive, facultatively anaerobic, rod-shaped and non-motile bacterial strain, designated TEYR-7, was isolated from the leaves of Sinopodophyllum hexandrum collected from the Qinling Mountains in Shaanxi Province, northwest China. Growth of strain TEYR-7 occurred at 15–37 °C (optimum, 28–30 °C), at pH 6.0–9.0 (optimum, pH 7.0) and in the presence of 0–3 % (w/v) NaCl (optimum, 0–1 %). Propionate and acetate were produced from glucose fermentation. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain TEYR-7 was a member of the phylum Actinobacteria, exhibiting the highest sequence similarity to Propioniciclava tarda DSM 22130 (94.3 %). The only respiratory quinone detected in strain TEYR-7 was menaquinone MK-9(H4) and the major cellular fatty acids (>10 %) were anteiso-C15 : 0 and C16 : 0. The polar lipid profile consisted of phosphatidylglycerol, diphosphatidylglycerol, two unidentified glycolipids, an unidentified phospholipid and three unidentified lipids. The genomic DNA G+C content was 71.2 mol%. meso-Diaminopimelic acid was detected in the peptidoglycan. On the basis of data from the present polyphasic taxonomic study, strain TEYR-7 is considered to represent a novel species of the genus Propioniciclava , for which the name Propioniciclava sinopodophylli sp. nov. is proposed. The type strain is TEYR-7 (=CCTCC AB 2015257=KCTC 33808).

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2017-09-13
2019-10-18
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