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

Volume 76, Issue 3

Description of sp. nov. isolated from mountain soil and sp. nov. isolated from plant root No Access

Abstract

Two novel bacterial strains designated CR2-8 and HWE2-09 were isolated from mountain soil and plant root, respectively, and characterized using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequence indicated that strain CR2-8 shared the highest sequence similarity with 301 (98.0%), and HWE2-09 with CC-FH12-1 (97.8%). The genome-based comparison indicated that both CR2-8 and HWE2-09 shared the highest relatedness with CU4, sharing 84.05% and 84.7 % orthologous average nucleotide identity and 29.3% and 30.3 % digital DNA–DNA hybridization, respectively, all of which were clearly below the suggested cutoffs for species distinction. For both strains, the major fatty acids were two summed features, one consisting of C ω7c and/or C ω6c and the other consisting of C ω7c and/or C ω6c, and also C 2OH and C. The major ubiquinone was Q-10, and the main polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and phosphatidyldimethylethanolamine for both strains. The DNA G+C content of strain CR2-8 was 63.16 %, and that of strain HWE2-09 was 63.26 %. The phenotypic, chemotaxonomic and phylogenetic analyses indicate that each of the strains CR2-8 and HWE2-09 should be classified as a new species of , for which the names sp. nov. (type strain=CR2-8=KCTC 8939=JCM 36935) and sp. nov. (type strain=HWE2-09=KCTC 8940=JCM 36936) are proposed.

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Keyword(s): in silico metabolic potential , mountain soil , plant root , Sphingobium erigeronicola and Sphingobium wonjuense
Funding
This study was supported by the:
  • National Institute of Biological Resources
    • Principal Award Recipient: SeungBum Kim
© 2026 The Authors
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2026-03-09
2026-04-19

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Description of Sphingobium wonjuense sp. nov. isolated from mountain soil and Sphingobium erigeronicola sp. nov. isolated from plant root
Int J Syst Evol Microbiol 76, 007100 (2026); https://doi.org/10.1099/ijsem.0.007100
/content/journal/ijsem/10.1099/ijsem.0.007100
/content/journal/ijsem/10.1099/ijsem.0.007100
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