Abstract

Strain CJN36-1NT, a Gram-stain-positive, non-flagellated, strictly aerobic and short rod-shaped bacterium, was isolated from flowerpot soil sampled in the Jeonju region of the Republic of Korea. Based on 16S rRNA gene sequences and the resulting phylogenetic tree, the strain belonged to the genus Microbacterium. Strain CJN36-1NT contained a chromosome of 3.6 Mbp with a G+C content of 68.5 mol%. The strain grew at 10-37 °C (optimally at 28 °C), at pH 5.0-8.0 (optimally at pH 8.0), and in the presence of 0-7 % NaCl (w/v; optimally with 0 % NaCl). Digital DNA-DNA hybridization, average nucleotide identity and average amino acid identity values between strain CJN36-1NT and its closest related species, Microbacterium protaetiae DFW100M-13T, were 82.0, 81.2, and 23.2 %, respectively. We propose naming this novel species Microbacterium horticulturae sp. nov., with CJN36-1NT (=KACC 23027T=NBRC 116065T) as the type strain.

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