Abstract
A Gram-stain-positive, rod-shaped, endospore-forming, motile bacterium, designated D33T, was isolated from a forest soil sample. The strain grew optimally at 30-37 °C, pH 8.0 and with 1 % (w/v) NaCl. The 16S rRNA gene sequence of the isolate showed similarities lower than 97 % with respect to species of the genus Paenibacillus. Strain D33T contained meso-diaminopimelic acid in the cell-wall peptidoglycan, and ribose and lower amounts of glucose and galactose as the whole-cell sugars. The major cellular fatty acid was anteiso-C15 : 0, and menaquinone-7 (MK-7) was the only respiratory quinone. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylmethylethanolamine, two glycolipids and an unknown lipid. The DNA G+C content was 51.1 mol%. The low DNA-DNA relatedness values between strain D33T and recognized species of the genus Paenibacillus, together with many phenotypic properties supported the classification of strain D33T as representative of a novel species of the genus Paenibacillus, for which the name Paenibacillus terreus sp. nov. is proposed. The type strain is D33T ( = KACC 18491T = DSM 100035T = CCTCC AB 2015273T).
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