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  • Title: Halomonas alkalitolerans sp. nov., a novel moderately halophilic bacteriun isolated from soda meadow saline soil in Daqing, China.
    Author: Wang S, Yang Q, Liu ZH, Sun L, Wei D, Zhang JZ, Song JZ, Wang Y, Song J, Fan JX, Meng XX, Zhang W.
    Journal: J Microbiol; 2011 Feb; 49(1):24-8. PubMed ID: 21369975.
    Abstract:
    A moderately halophilic bacterial strain 15-13(T), which was isolated from soda meadow saline soil in Daqing City, Heilongjiang Province, China, was subjected to a polyphasic taxonomic study. The cells of strain 15-13 were found to be Gram-negative, rod-shaped, and motile. The required growth conditions for strain 15-13(T) were: 1-23% NaCl (optimum, 7%), 10-50°C (optimum, 35°C), and pH 7.0-11.0 (optimum, pH 9.5). The predominant cellular fatty acids were C(18:1) ω7c (60.48%) and C(16:0) (13.96%). The DNA G+C content was 67.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons indicated that strain 15-13(T) clustered within a branch comprising species of the genus Halomonas. The closest phylogenetic neighbor of strain 15-13(T) was Halomonas pantelleriensis DSM 9661(T) (98.9% 16S rRNA gene sequence similarity). The level of DNA-DNA relatedness between the novel isolated strain and H pantelleriensis DSM 9661(T) was 33.8%. On the basis of the phenotypic and phylogenetic data, strain 15-13(T) represents a novel species of the genus Halomonas, for which the name Halomonas alkalitolerans sp. nov. is proposed. The type strain for this novel species is 15-13(T) (=CGMCC 1.9129(T) =NBRC 106539(T)).
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