1887

Abstract

Two Gram-staining-negative, strictly aerobic, rod-shaped bacteria, designated strains AVA-1 and AVA-2, were isolated from the root of (L.) Brum.f. derived from Chachoengsao Province, Thailand. The strains contained cytochrome oxidase and catalase activities. They grew in 4 % (w/v) NaCl, at a pH range of 6.0–9.0 (optimally at pH 7) and at 20–42 °C (optimally at 30–37 °C). The major isoprenoid quinone was ubiquinone with eight isoprene units (Q-8). The major fatty acids were C and C cyclo. On the basis of 16S rRNA gene sequence analysis, the strains represent a species belonging to the genus and are closely related to NBRC 15126 (98.80 %), LMG 6003 (98.64 %) LMG 26690 (98.59 %), LMG 26696 (98.58 %) and LMG 26845 (98.58 %). The DNA G+C content of strain AVA-1 was 66.5 mol%. The novel strains had low DNA–DNA relatedness values with related type strains. On the basis of the phenotypic and genotypic data obtained, the strains clearly represent a novel species, for which the name sp. nov. is proposed. The type strain is strain AVA-1 (=LMG 29108=NBRC 111463=PCU 352=TISTR 2383).

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2017-01-01
2020-01-23
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