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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 71, Issue 12

sp. nov. and sp. nov., two new rapidly growing mycobacterial species No Access

Abstract

Four bacterial strains (LJ126/S18 and Z-34/S20) recovered from faecal samples of Tibetan antelopes on the Qinghai–Tibet Plateau of China were analysed using a polyphasic approach. All four isolates were aerobic, short rod-shaped, non-motile, Gram-stain-positive, acid-fast and fast-growing. Phylogenetic analyses based upon 16S rRNA and whole-genome sequences showed that the two pair of strains formed two distinct branches within the evolutionary radiation of the genus . Strains LJ126/S18 and Z-34/S20 were most closely related to CCUG 37667, NCTC 10437, DSM 44605, JCM 15658, JCM 30395, JCM 6373 and JCM 13392, but readily distinguished from the known species by a combination of chemotaxonomic and phenotypic features and by low average nucleotide identity values (74.4–84.9 %). Consequently, the two strain pairs are considered to represent different novel species of for which the names sp. nov. and sp. nov. are proposed, with LJ126 (=CGMCC 1.1992=KCTC 49535) and Z-34 (=CGMCC 1.1993=DSM 106172) as the respective type strains.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Mycolicibacterium , polyphasic taxonomy and Qinghai–Tibet Plateau
Funding
This study was supported by the:
  • research units of discovery of unknown bacteria and function (Award 2018RU010)
    • Principle Award Recipient: JianguoXu
  • state key r&d program of china (Award 2019YFC1200505)
    • Principle Award Recipient: JingYang
  • state key r&d program of china (Award 2019YFC1200500)
    • Principle Award Recipient: JingYang
© 2021 The Authors
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2021-12-08
2024-04-24
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Mycolicibacterium baixiangningiae sp. nov. and Mycolicibacterium mengxianglii sp. nov., two new rapidly growing mycobacterial species
Int J Syst Evol Microbiol 71, 005019 (2021); https://doi.org/10.1099/ijsem.0.005019
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