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

Volume 72, Issue 10

sp. nov., isolated from abalone viscera and emended description of the genus No Access

Abstract

Two novel strains, Z083 and Z084, were isolated from the viscera of abalone, , sampled in Weihai, PR China. The phenotypic, chemotaxonomic and genomic characteristics of the two strains were studied. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between the two strains were 99.8 and 98.9 %, respectively, suggesting that the two strains belonged to the same species. The 16S rRNA gene sequence analysis showed 99.8 % similarity between the two strains, while the genome analysis indicated that they were not from one clonal origin. Phylogenetic analysis of 16S rRNA gene sequences showed the two strains belonged to the genus and JCM 32043 was the closest strain (97.5 %). Genomic analysis, including calculations of ANI, dDDH, amino acid identity (AAI) and percentage of conserved proteins (POCP), between Z083, Z084 and JCM 32043 clearly separated those two strains from JCM 32043 as the values were below the thresholds for species delineation. The genome size of strains Z083 and Z084 were approximately 4.16 and 4.23 Mbp, respectively, and the DNA G+C contents of both strains were 51.8 mol%. According to the phenotypic, chemotaxonomic and phylogenetic characterizations and the results of genome analysis, Z083 and Z084 could be identified as belonging to a novel species of the genus , for which the name sp. nov., is proposed, with Z083 (=MCCC 1H00501=KCTC 92006) as the type strain.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): 16S rRNA gene , Aestuariirhabdus haliotis sp. nov. and phylogenetic analysis
Funding
This study was supported by the:
  • National Natural Science Foundation of China (Award 32070002)
    • Principle Award Recipient: Zong-JunDu
  • National Natural Science Foundation of China (Award 31770002)
    • Principle Award Recipient: Zong-JunDu
© 2022 The Authors
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2022-10-18
2025-01-16
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Aestuariirhabdus haliotis sp. nov., isolated from abalone viscera and emended description of the genus Aestuariirhabdus
Int J Syst Evol Microbiol 72, 005548 (2022); https://doi.org/10.1099/ijsem.0.005548
/content/journal/ijsem/10.1099/ijsem.0.005548
/content/journal/ijsem/10.1099/ijsem.0.005548
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