Abstract
One Gram-negative aerobic bacterial strain was isolated from the bark tissue of Populus × euramericana and investigated using a polyphasic approach including 16S rRNA gene sequencing and both phenotypic and chemotaxonomic assays. The 16S rRNA gene and housekeeping gene phylogenies suggest that the novel isolate is different from the other genera of the family Alcaligenaceae. The G+C content, major fatty acids, physiological and biochemical data supported the distinctiveness of the novel strain from reference species. The major fatty acids detected in the novel isolate were C16 : 1ω7c and/or C16 : 1ω6c, C16 : 0, C14 : 0 3OH and/or C16 : 1isoI and C18 : 1ω7c. The phospholipid profile of strain d3-2-2T contained diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, aminolipid, aminophospholipid and an unidentified lipid. The quinone of the novel isolate was Q-8. Therefore, based on the data, the strain constitutes a novel species of a novel genus within the family Alcaligenaceae, for which the name Corticimicrobacter populi gen. nov., sp. nov. is proposed. The type strain is 3d-2-2T (=CFCC 11891T=KCTC 52807T).
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