A Gram-stain-positive, rod-shaped, non-endospore-forming,
motile by means of peritrichous flagella, facultatively anaerobic
bacterium designated TI45-13arT was isolated from Nuruk,
a Korean traditional Makgeolli fermentation starter. It grew
at 4–35°C (optimum, 28–30°C), pH 5.0–9.0 (optimum, pH
7.0) and NaCl concentrations up to 5% (w/v). Phylogenetic
trees generated using 16S rRNA gene sequences revealed that
strain TI45-13arT belonged to the genus Paenibacillus and
showed the highest sequence similarities with Paenibacillus
kyungheensis DCY88T (98.5%), Paenibacillus hordei RH-N24T
(98.4%) and Paenibacillus nicotianae YIM h-19T (98.1%). The
major fatty acid was anteiso-C15:0. The DNA G+C content
was 39.0 mol%, and MK-7 was the predominant isoprenoid
quinone. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol,
phosphatidylethanolamine, three unidentified
glycolipids, and one unidentified aminoglycolipid. The
cell-wall peptidoglycan contained meso-diaminopimelic acid.
On the basis of polyphasic taxonomy study, it was suggested
that strain TI45-13arT represents a novel species within the genus
Paenibacillus for which the name Paenibacillus nuruki
sp. nov. is proposed. The type strain was TI45-13arT (= KACC
18728T = NBRC 112013T).
Citations
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