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A Gram-stain-negative, strictly aerobic bacterium, designated strain N7T, was isolated from a rice paddy in South Korea. Cells of strain N7T were non-motile, non-spore-forming rods. Growth was observed at 15–35 °C (optimum of 25–30 °C) and between pH 6.0 and 8.0 (optimum of pH 6.5–7.5). The predominant isoprenoid quinone was menaquinone-7. The major cellular fatty acids of strain N7T were summed feature 3 (comprising C16 : 1 ω7c and/or iso-C15 : 0 2-OH), iso-C15 : 0, anteiso-C15 : 0, C15 : 0 and iso-C16 : 0. The G+C content of the genomic DNA was 37.7 mol%. Comparative 16S rRNA gene sequence analyses showed that strain N7T formed a distinct phyletic line within the genus Pedobacter. Phylogenetic distances from strains of other Pedobacter species with validly published names were greater than 5.0 % (i.e. <95.0 % 16S rRNA gene sequence similarities). On the basis of phenotypic and molecular data, it is clear that strain N7T represents a novel species within the genus Pedobacter, for which the name Pedobacter oryzae sp. nov. is proposed. The type strain is N7T (=KACC 12821T =DSM 19973T).
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International Journal of Systematic and Evolutionary Microbiology vol. 59 , part 10, pp. 2491 - 2495
Supplementary Fig. S1. Transmission electron micrograph showing the general morphology of a negatively stained cell of strain N7 Tafter growth for 2 days at 30 °C on R2A agar. Bar, 700 nm.