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Abstract

A bacterial strain, designated Jyi-05, was isolated from a flooded rice field and characterized using a polyphasic taxonomic approach. Cells of strain Jyi-05 were Gram-stain-negative, strictly aerobic, bright-yellow-pigmented rods that were motile by gliding. Growth occurred at 10–30 °C (optimum 30 °C), at pH 6.5–7.5 (optimum pH 7.0) and with 0–2 % (w/v) NaCl (optimum 1 %, w/v, NaCl). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain Jyi-05 belonged to the genus and was most closely related to DSM 1076 with sequence similarity of 97.6 %. Strain Jyi-05 contained iso-C (16.6 %), anteiso-C (10.8 %), summed feature 3 (Cω7 and/or Cω6; 10.3 %), iso-C 3-OH (9.2 %), C (7.3 %) and iso-C 3-OH (7.2 %) as the predominant fatty acids. The major isoprenoid quinone was MK-6. The polar lipid profile consisted of phosphatidylethanolamine and several uncharacterized aminophospholipids and phospholipids. The major polyamine was homospermidine. The genomic DNA G+C content of strain Jyi-05 was 34.2 mol%. The DNA–DNA relatedness of strain Jyi-05 with respect to recognized species of the genus was less than 70 %. On the basis of the phylogenetic inference and phenotypic data, strain Jyi-05 should be classified as a novel species, for which the name sp. nov. is proposed. The type strain is Jyi-05 ( = BCRC 80522 = LMG 27292 = KCTC 32240). Emended descriptions of , and are also presented.

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2014-11-01
2019-11-18
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