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

Volume 75, Issue 6

sp. nov., a bacterium isolated from the gill homogenate of the mussel in a cold seep No Access

Abstract

A novel Gram-negative, oxidase- and catalase-positive, rod-shaped bacterium, designated strain KX21116, was isolated from the mussel collected from a cold seep field in the South China Sea. Strain KX21116 grew optimally at 28 °C, pH 6.0 with 3% (w/v) NaCl, under aerobic and microaerobic conditions. Its genome size was 3.16 Mb, with a G+C content of 28.4 mol%. The 16S rRNA sequences revealed that strain KX21116 was closely related to DSM 7299 (98.77% gene sequence similarity) and AR-13 (95.58%). Phylogenetic and phylogenomic analysis revealed that strain KX21116 clustered with the type species of the genus , with DSM 7299 as its nearest neighbour. The genomic average nucleotide identity (orthoANI) values between strain KX21116 and DSM 7299 were 92.74%, while the DNA–DNA hybridization (GGDC) values of the two strains were 48.8%. The predominant fatty acids are C, C c/C1 c and C c/C1 c. Based on a comparative analysis of phylogenetic, phylogenomic, phenotypic and chemotaxonomic characteristics, strain KX21116 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is KX21116 (=MCCC 1K08505=KCTC 92900=JCM 35939).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Arcobacter iocasae sp. nov. , Arcobacteraceae , cold seep , Gigantidas platifrons and polyphasic taxonomy
Funding
This study was supported by the:
  • Key Technologies Research and Development Program (Award 2023YFC2811501)
    • Principal Award Recipient: ZhangHuan
  • Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao) (Award 2022QNLM030004-3)
    • Principal Award Recipient: ZhangHuan
  • National Natural Science Foundation of China (Award 42030407)
    • Principal Award Recipient: LiChaolun
© 2025 The Authors

Erratum

A correction has been published for this content:
sp. nov., a bacterium isolated from the gill homogenate of the mussel in a cold seep
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Arcobacter iocasae sp. nov., a bacterium isolated from the gill homogenate of the mussel Gigantidas platifrons in a cold seep
Int J Syst Evol Microbiol 75, 006818 (2025); https://doi.org/10.1099/ijsem.0.006818
/content/journal/ijsem/10.1099/ijsem.0.006818
/content/journal/ijsem/10.1099/ijsem.0.006818
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