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

Volume 75, Issue 3

sp. nov., sp. nov., sp. nov. and gen. nov., sp. nov., four new species isolated from polluted soil Open Access

Abstract

A taxonomic study was conducted on four bacterial strains isolated from the soil of a coking plant. Phylogenetic analysis showed that the four strains belonged to three families: , and . Identification of the 16S rRNA gene exhibited that their sequence similarities were between 94.96 and 98.98% when compared to known and validly nominated species. Their genomes ranged from 3.4 to 7.2 Mb, with DNA G+C molar contents varying from 62.3 to 67.2%. The average nucleotide identities ranged from 71.4 to 92.3%, and digital DNA–DNA hybridization values were 19.7–47.0% when comparing them with closely related type species, supporting the classification of these four strains. Functional analysis demonstrated that strain H3Y2-7 was robustly resistant to chromate (VI) and arsenite (III) and was able to grow on aromatic compounds including naphthalene as carbon sources even in the presence of chromate (VI). These features reflect its ability to treat combined pollutants and adapt to a polluted environment. Based on the analysis of polyphasic taxonomy, we propose the four bacterial strains representing novel species, namely sp. nov. (type strain H39-3-26=JCM 36178=CGMCC 1.61344), sp. nov. (type strain H3M7-6=JCM 36176=CGMCC 1.61336), sp. nov. (type strain H3Y2-7=JCM 36482=CGMCC 1.61323) and gen. nov., sp. nov. (type strain H3SJ34-1=JCM 36465=CGMCC 1.61333).

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  • Accepted:
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Keyword(s): Curvibacter soli , Extensimonas soli , pollutant degradation , polyphasic characterization , Pseudarthrobacter naphthalenicus and Terripilifer ovatus
Funding
This study was supported by the:
  • National Natural Science Foundation of China (Award No. 41991333)
    • Principal Award Recipient: Shuang-JiangLiu
© 2025 The Authors
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License. This article was made open access via a Publish and Read agreement between the Microbiology Society and the corresponding author’s institution.
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2025-03-06
2026-02-14

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Curvibacter soli sp. nov., Extensimonas soli sp. nov., Pseudarthrobacter naphthalenicus sp. nov. and Terripilifer ovatus gen. nov., sp. nov., four new species isolated from polluted soil
Int J Syst Evol Microbiol 75, 006698 (2025); https://doi.org/10.1099/ijsem.0.006698
/content/journal/ijsem/10.1099/ijsem.0.006698
/content/journal/ijsem/10.1099/ijsem.0.006698
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