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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 76, Issue 4

sp. nov. and sp. nov., two bacterial species isolated from the burying beetle No Access

Abstract

Two novel bacterial strains, designated MP11Mi and MP213Fo, were isolated from the burying beetle and subjected to a polyphasic taxonomic study. Strain MP11Mi was placed in the genus , showing the highest 16S rRNA gene sequence similarities to HY366 (98.8% sequence identity), followed by HY002 (98.4%). The strain exhibited low genomic relatedness to its closest relatives [ANI (average nucleotide identity) <90% and dDDH (digital DNA–DNA hybridization) <37%], far below the accepted species thresholds (95–96% ANI and 70% dDDH), unambiguously supporting species-level distinctiveness. Strain MP213Fo was affiliated with the genus , with LMG 32378 as its closest relative. ANI (79.4–79.9%), dDDH (22.8–23.1%), average amino acid identity (82.5–83.8%) and percentage of conserved proteins (71.6–77.2%) values confirmed its clear separation from all hitherto recognized species of this genus. The genome of MP213Fo comprises a circular chromosome and a plasmid carrying conserved genus-specific features. Analysis of specialized biosynthetic potential identified 13 gene clusters in MP11Mi and 4 in MP213Fo, highlighting their capacity for specialized metabolite biosynthesis. Based on phylogenomic, chemotaxonomic and phenotypic characteristics, strains MP11Mi and MP213Fo are proposed as representatives of two novel species, for which the names sp. nov. (type strain MP11Mi=DSM 113667=CCM 9219) and sp. nov. (type strain MP213Fo=DSM 113682=CCM 9218) are introduced.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): burying beetle , Gordonia , insect-associated bacteria , Nicrophorus vespilloides and Pseudochrobactrum
Funding
This study was supported by the:
  • Alexander von Humboldt Foundation
    • Principal Award Recipient: JuanGuzman
  • Hessisches Ministerium für Wissenschaft und Kunst
    • Principal Award Recipient: AndreasVilcinskas
  • Fraunhofer-Gesellschaft
    • Principal Award Recipient: AndreasVilcinskas
© 2026 The Authors
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2026-04-08
2026-04-14

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Gordonia abscondita sp. nov. and Pseudochrobactrum mosebachae sp. nov., two bacterial species isolated from the burying beetle Nicrophorus vespilloides
Int J Syst Evol Microbiol 76, 007114 (2026); https://doi.org/10.1099/ijsem.0.007114
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