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

Volume 74, Issue 5

sp. nov. and sp. nov., isolated from an automobile air conditioning system No Access

Abstract

Two strictly aerobic and rod-shaped bacteria, labelled as DB1703 and DB2414S, were obtained from an automobile air conditioning system. Strain DB1703 was Gram-stain-negative, while strain DB2414S was Gram-stain-positive. Both strains were catalase-positive and oxidase-negative. Strains DB1703 and DB2414S were able to grow at 18–42 °C. Strain DB1703 grew within a NaCl range of 0–3 % and a pH range of 6.0–8.0; while strain DB2414S grew at 0–1 % and pH 6.5–8.5. The phylogenetic and 16S rRNA gene sequence analysis indicated that strains DB1703 and DB2414S belonged to the genera and , respectively. Strain DB1703 showed the closest phylogenetic similarity to YIM 100770 (94.8 %), whereas strain DB2414S was most closely related to ATCC BAA-1496 (97.7 %). The genome sizes of strains DB1703 and DB2414S were 4 652 148 and 4 282 418 bp, respectively, with DNA G+C contents of 68.8 and 70.5 mol%, respectively. Chemotaxonomic data showed Q-10 as the sole ubiquinone in DB1703 and ML-8 (H4) in DB2414S. The predominant cellular fatty acid in DB1703 was summed feature 8 (C 7 and/or C 6), whereas iso-C, C 8, and iso-C were dominant in DB2414S. Overall, the polyphasic taxonomic comparisons showed that strains DB1703 and DB2414S were distinct from their closest taxa and represent novel species within the genera and , respectively. Accordingly, we propose the names sp. nov., with the type strain DB1703 (=KCTC 72724=NBRC 114759), and sp. nov., with the type strain DB2414S (=KCTC 49355=NBRC 114620).

  • Received:
  • Accepted:
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Keyword(s): automobile air conditioning system , Enterovirga aerilata sp. nov. , Intrasporangiaceae , Knoellia koreensis sp. nov. and Methylobacteriaceae
Funding
This study was supported by the:
  • Rural Development Administration (Award PJ014897032023)
    • Principle Award Recipient: Dong-UkKim
© 2024 The Authors
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2024-05-14
2025-04-27
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Enterovirga aerilata sp. nov. and Knoellia koreensis sp. nov., isolated from an automobile air conditioning system
Int J Syst Evol Microbiol 74, 006383 (2024); https://doi.org/10.1099/ijsem.0.006383
/content/journal/ijsem/10.1099/ijsem.0.006383
/content/journal/ijsem/10.1099/ijsem.0.006383
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