Abstract
A novel bacteria strain, designated YIM B02787T, was isolated from rhizosphere soil of Ageratina adenophora, in Yunnan, southwest China. The strain was aerobic, Gram-stain-negative, rod-shaped and motile with one polar flagellum. Growth occurred at 4-45°C (optimum, 20-30°C) and pH 6.0-10.0 (optimum, 7.0-8.0), and in presence of 0-1% (w/v) NaCl. Phylogenetic analyses based on both 16S rRNA gene and genome sequences data revealed that strain YIM B02787T belongs to the genus Massilia, being closely related to Massilia phosphatilytica KCTC 52513T (98.93% similarity), M. putida KCTC 42761T (98.86%), and M. kyonggiensis JCM 19189T (98.78%). The DNA G+C content was 65.9%. The digital DNA-DNA hybridization and average nucleotide identity values between the isolate strain and aforementioned closely neighbors were low, at 35.8-48.9 and 88.5-92.5%, respectively. Strain YIM B02787T contained Q-8 as the ubiquinone and major fatty acids were summed feature 3 (C16:1ω7c and/or C16:1ω6c, 45.5%) and C16:0 (27.5%). The polar lipid profile consisted of phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, two unidentified phospholipids, two unidentified aminophospholipids, and one unidentified polar lipid. On the basis of its phylogenetic, phenotypic and chemotaxonomic characteristics, strain YIM B02787Trepresents a novel species of the genus Massilia, for which the name Massilia orientalis sp. nov. is proposed. The type strain is YIM B02787T (= NBRC 116628T = CGMCC 1.61539T).
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