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Abstract

An aerobic, Gram-stain-negative and short rod-shaped bacterial strain, designated M6-31, was isolated from rice paddy soil sampled in Miryang, Republic of Korea. Growth was observed at 4–35 °C (optimum, 28 °C), pH 6.0–9.0 (optimum, pH 7.0–8.0) and in the presence of 0–4 % (w/v) NaCl (optimum, 0 % w/v). Phylogenetic analysis based on 16S rRNA gene sequences grouped strain M6-31 with IBFC2009, SCU-B140 and MLS-26-JM13-11 in the same clade, with the 16S rRNA gene sequence similarities ranging from 95.8 to 96.6 %. A genome-based phylogenetic tree reconstructed by using all publicly available genomes placed strain M6-31 with KACC 22910, ‘’ ACCC 05744, CGMCC 1.12966 and CGMCC 1.12801. Orthologous average nucleotide identity and digital DNA–DNA hybridization values between strain M6-31 and its closely related strains were lower than 74.6 and 22.0 %, respectively. The respiratory quinone was menaquinone-7, and the major polar lipid was phosphatidylethanolamine. The major fatty acids (>10 %) were C iso, C iso 3OH and summed feature 3. The phenotypic, chemotaxonomic and genotypic data obtained in this study showed that strain M6-31 represents a novel species of the genus , for which the name sp. nov. (type strain M6-31=KACC 22765=JCM 35893) is proposed.

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2024-05-07
2024-05-19
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