Lysobacter tabacisoli sp. nov., isolated from rhizosphere soil of Nicotiana tabacum L.
2018
A Gram-stain-negative, aerobic, rod-shaped bacterium, designated strain C8-1T, was isolated from the rhizosphere soil of Nicotiana tabacum L. collected from Kunming, south-west China. The cells showed oxidase-positive and catalase-positive reactions. Growth was observed at 10–40 °C, at pH 6.0–8.0 and in the presence of up to 1 % (w/v) NaCl, with optimal growth at 30 °C and pH 7.0. The predominant isoprenoid quinone was Q-8. The major fatty acids were identified as iso-C15 : 0, iso-C17 : 0 and iso-C17 : 1ω9c. The cellular polar lipids contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmethylethanolamine, five unidentified phospholipids and two unidentified aminophospholipids. The genomic DNA G+C content was 70.7 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain C8-1T should be assigned to the genus
Lysobacter
. 16S rRNA gene sequence similarity analysis showed that strain C8-1T was closely related to
Lysobacter cavernae
YIM C01544T (98.6 %),
Lysobacter soli
DCY21T (97.6 %),
Lysobacter panacisoli
CJ29T (97.3 %),
Lysobacter firmicutimachus
PB-6250T (97.3 %),
Lysobacter niastensis
GH41-7T (97.3 %) and
Lysobacter gummosus
KCTC 12132T (97.1 %). DNA–DNA hybridization data indicated that the isolate may represent a novel genomic species belonging to the genus
Lysobacter
. Polyphasic taxonomic characteristics indicated that strain C8-1T represents a novel species of the genus
Lysobacter
, for which the name
Lysobacter
tabacisoli sp. nov. is proposed. The type strain is C8-1T (=KCTC 62034T=CGMCC 1.16271T) .
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