Edaphobaculum flavum gen. nov., sp. nov., a member of family Chitinophagaceae, isolated from grassland soil
2017
A yellow-coloured, Gram-stain-negative, non-motile, rod-shaped, strictly aerobic bacterium, designated 1-116T, was isolated from Erdos grassland soil of Inner Mongolia, PR China. Phylogenetic analysis based on 16S rRNA genes showed that strain 1-116T was a member of family
Chitinophagaceae
and exhibited the highest similarities to Taibaiella koreensis THG-DT86T (90.1 %) and
Flavihumibacter
solisivae 3-3T (90.0 %), while the similarities to the other
Chitinophagaceae
type strains were lower than 90.0 %. Strain 1-116T grew at 16–33 °C (optimum 28 °C), pH 6.0–9.0 (optimum 7.0–8.0) and 0–0.5 % NaCl (w/v; optimum without NaCl). A flexirubin-type pigment was present. The DNA G+C content was 43.2 mol% and the only quinone present was menaquinone-7. The only polyamine detected was sym-homospermidine [30.7 µmol (g dry weight)−1] and the predominant fatty acids were iso-C15 : 0 (20.8 %), iso-C15 : 1 G (25.1 %), summed feature 4 (anteiso-C17 : 1 B and/or iso-C17 : 1 I; 13.8 %) and iso-C17 : 0 3-OH (13.2 %). The major polar lipids were phosphatidylethanolamine, three unidentified lipids, an unidentified aminophospholipid and an unidentified glycolipid. On the basis of the polyphasic analyses, strain 1-116T represents a novel genus and species in the family
Chitinophagaceae
, for which the name Edaphobaculum flavum gen. nov., sp. nov., is proposed. The type strain of Edaphobaculum flavum is 1-116T (=CCTCC AB 2017054=KCTC 52843).
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