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

Volume 73, Issue 4

sp. nov., an algicidal bacterium isolated from seawater No Access

Abstract

A taxonomic study was carried out on strain BGMRC 0090, which was isolated from seawater. The isolate was a Gram-negative, aerobic, flagellated, rod-shaped bacterium with algicidal activity. Optimal growth was observed at 30 °C, pH 6.0 and with 2 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain BGMRC 0090 belonged to the genus , with highest sequence similarity to CC-MMS-1 (98.4 %). Average nucleotide identity, amino acid identity and digital DNA–DNA hybridization values between strain BGMRC 0090 and five strains of the genus with publicly available genomes were below 84.0, 69.2 and 21.4 %, respectively. The genome of strain BGMRC 0090 was 3.2 Mb with 64.8 mol% DNA G+C content and encoded 2905 predicted proteins, three rRNA, 42 tRNA and four ncRNA genes. Some algicidal biosynthesis-associated genes were detected in the genome. Strain BGMRC 0090 contained Q-10 as the major quinone. The predominant fatty acids were identified as summed feature 8 (Cω7/ω6) and C. Based on the polyphasic evidence presented in this paper, strain BGMRC 0090 is concluded to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is BGMRC 0090 (= KCTC 92591=MCCC 1K08100).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): algicidal bacterium , genome , Parvularcula , seawater and species
Funding
This study was supported by the:
  • Science and Technology Major Project of Guangxi Autonomous Region (Award AA18242047)
    • Principle Award Recipient: FeiLi
  • Science and Technology Major Project of Guangxi Autonomous Region (Award ZY21195027)
    • Principle Award Recipient: Jun-XiangLai
  • This research was supported by the National Natural Science Foundation of China (Award 42066002)
    • Principle Award Recipient: Xian-LingQin
© 2023 The Authors
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2023-04-06
2025-06-19
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Parvularcula maris sp. nov., an algicidal bacterium isolated from seawater
Int J Syst Evol Microbiol 73, 005825 (2023); https://doi.org/10.1099/ijsem.0.005825
/content/journal/ijsem/10.1099/ijsem.0.005825
/content/journal/ijsem/10.1099/ijsem.0.005825
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