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A Gram-stain-positive, rod-shaped, endospore-forming, aerobic bacterial strain, designated M327T, was isolated from the weathered surfaces of rock (mica schist) from Susong, Anhui Province, PR China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain M327T belonged to the genus Paenibacillus and was related most closely to Paenibacillus terrigena A35T (98.6 % similarity) and Paenibacillus selenitireducens ES3-24T (98.3 %). Strain M327T contained meso-diaminopimelic acid in the cell wall and MK-7 as the major menaquinone. The main fatty acids of strain M327T were anteiso-C15 : 0 and iso-C16 : 0. The polar lipid profile contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, three unknown aminophospholipids and an unknown lipid. The total DNA G+C content of strain M327T was 48.6 mol%. Based on the low level of DNA–DNA relatedness (ranging from 26.6 to 33.1 %) to these type strains of species of the genus Paenibacillus and unique phenotypic characteristics, it is suggested that strain M327T represents a novel species of the genus Paenibacillus , for which the name Paenibacillus susongensis sp. nov. is proposed. The type strain is M327T ( = CCTCC AB 2014058T = LMG 28236T = JCM 19951T).
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