Burkholderia stagnalis sp. nov. and Burkholderia territorii sp. nov., two novel Burkholderia cepacia complex species from environmental and human sources

Brigit De Smet, Mark Mayo, Charlotte Peeters, James E. A. Zlosnik, Theodore Spilker, Trevor J. Hird, John LiPuma, Timothy Kidd, Mirjam Kaestli, Jennifer L Ginther, David M Wagner, Paul S Keim, Scott Bell, Jan A. Jacobs, Bart Currie, Peter Vandamme

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    Abstract

    Nine Burkholderia cepacia complex (Bcc) bacteria were isolated during environmental surveys for the ecological niche of Burkholderia pseudomallei, the aetiological agent of melioidosis, in the Northern Territory of Australia. They represented two multi-locus sequence analysis-based clusters, referred to as Bcc B and Bcc L. Three additional environmental and clinical Bcc B isolates were identified upon deposition of the sequences in the PubMLST database. Analysis of the concatenated nucleotide sequence divergence levels within both groups (1.4 and 1.9%, respectively) and towards established Bcc species (4.0 and 3.9%, respectively) demonstrated that the two taxa represented novel Bcc species. All 12 isolates were further characterized using 16S rRNA and recA gene sequence analysis, RAPD analysis, DNA base content determination, fatty acid methyl ester analysis and biochemical profiling. Analysis of recA gene sequences revealed a remarkable diversity within each of these taxa, but, together, the results supported the affiliation of the two taxa to the Bcc. Bcc B strains can be differentiated from most other Bcc members by the assimilation of maltose. Bcc L strains can be differentiated from other Bcc members by the absence of assimilation of N-acetylglucosamine. The names Burkholderia stagnalis sp. nov. with type strain LMG 28156T (=CCUG 65686T) and Burkholderia territorii sp. nov. with type strain LMG 28158T (=CCUG 65687T) are proposed for Bcc B and Bcc L bacteria, respectively.
    Original languageEnglish
    Pages (from-to)2265-2271
    Number of pages7
    JournalInternational Journal of Systematic and Evolutionary Microbiology
    Volume65
    DOIs
    Publication statusPublished - 2015

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    De Smet, B., Mayo, M., Peeters, C., Zlosnik, J. E. A., Spilker, T., Hird, T. J., LiPuma, J., Kidd, T., Kaestli, M., Ginther, J. L., Wagner, D. M., Keim, P. S., Bell, S., Jacobs, J. A., Currie, B., & Vandamme, P. (2015). Burkholderia stagnalis sp. nov. and Burkholderia territorii sp. nov., two novel Burkholderia cepacia complex species from environmental and human sources. International Journal of Systematic and Evolutionary Microbiology, 65, 2265-2271. https://doi.org/10.1099/ijs.0.000251