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  • Title: Niastella populi sp. nov., isolated from soil of Euphrates poplar (Populus euphratica) forest, and emended description of the genus Niastella.
    Author: Zhang K, Wang Y, Tang Y, Dai J, Zhang L, An H, Luo G, Rahman E, Fang C.
    Journal: Int J Syst Evol Microbiol; 2010 Mar; 60(Pt 3):542-545. PubMed ID: 19654358.
    Abstract:
    A novel bacterial strain, designated THYL-44(T), was isolated from the soil of a Euphrates poplar (Populus euphratica) forest in Xinjiang, China. The cells were strictly aerobic, Gram-staining-negative, non-flagellated, non-motile and filamentous. Growth occurred at 17-37 degrees C (optimum 30 degrees C), at pH 5.0-8.0 (optimum pH 7.0) and with 0-1 % NaCl (w/v; optimum 0 %). Flexirubin pigments were not produced. A phylogenetic analysis based on 16S rRNA gene sequences revealed that strain THYL-44(T) was closely related to Niastella koreensis KACC 11465(T) (95.5 % sequence similarity). The major respiratory quinone was MK-7 and the predominant cellular fatty acids were iso-C(15 : 0) (28.6 %), iso-C(17 : 0) 3-OH (23.9 %) and iso-C(15 : 1) G (17.4 %). The DNA G+C content was 45.2 mol%. Therefore, the phylogenetic, physiological and chemotaxonomic data demonstrated that strain THYL-44(T) represents a novel species of the genus Niastella , for which the name Niastella populi sp. nov. is proposed. The type strain is THYL-44(T) (=CCTCC AB 208238(T)=KCTC 22560(T)). On the basis of new data, an emended description of the genus Niastella is also proposed.
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