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  • Title: Burkholderia insecticola sp. nov., a gut symbiotic bacterium of the bean bug Riptortus pedestris.
    Author: Takeshita K, Tamaki H, Ohbayashi T, Meng XY, Sone T, Mitani Y, Peeters C, Kikuchi Y, Vandamme P.
    Journal: Int J Syst Evol Microbiol; 2018 Jul; 68(7):2370-2374. PubMed ID: 29863457.
    Abstract:
    A Gram-negative, aerobic, rod-shaped, non-spore-forming, motile bacterium, designated strain RPE64T, was isolated from the gut symbiotic organ of the bean bug Riptortus pedestris, collected in Tsukuba, Japan, in 2007. 16S rRNA gene sequencing showed that this strain belongs to the Burkholderia glathei clade, exhibiting the highest sequence similarity to Burkholderia peredens LMG 29314T (100 %), Burkholderia turbans LMG 29316T (99.52 %) and Burkholderia ptereochthonis LMG 29326T (99.04 %). Phylogenomic analyses based on 107 single-copy core genes and Genome blast Distance Phylogeny confirmed B. peredens LMG 29314T, B. ptereochthonis LMG 29326T and several uncultivated, endophytic Burkholderia species as its nearest phylogenetic neighbours. Digital DNA-DNA hybridization experiments unambiguously demonstrated that strain RPE64T represents a novel species in this lineage. The G+C content of its genome was 63.2 mol%. The isoprenoid quinone was ubiquinone 8 and the predominant fatty acid components were C16 : 0, C18 : 1ω7c and C17 : 0 cyclo. The absence of nitrate reduction and the capacity to grow at pH 8 clearly differentiated strain RPE64T from related Burkholderia species. Based on these genotypic and phenotypic characteristics, strain RPE64T is classified as representing a novel species of the genus Burkholderia, for which the name Burkholderia insecticola sp. nov. is proposed. The type strain is RPE64T (=NCIMB 15023T=JCM 31142T).
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