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Volume 71, Issue 3

sp. nov., a novel marine bacterium isolated from the phycosphere of dinoflagellate Free

Abstract

A Gram-stain-negative, aerobic, rod-shaped and non-motile bacterium was isolated from a liquid culture of dinoflagellate and further designated as LMIT004. Optimal growth was observed at 25 °C, pH 7.0 and in the presence of 2 % (w/v) NaCl. Oxidase and catalase were positive. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain LMIT004 showed high similarities to type strains SM17004 (96.77 %) and JCM11811 (95.60 %) but formed a separate branch in the genus . The G+C content of strain LMIT004 was 39.0 mol%. The dominant fatty acids were iso-C and iso-C G. The polar lipids mainly contained phosphatidylethanolamine, five unidentified phospholipids and five unidentified polar lipids. The sole respiratory quinone was menaquinone-6 (MK-6). The draft genome of the type strain was 3.88 Mbp. The average nucleotide identity values between strain LMIT004 and the two reference strains SM17004 and JCM11811 were 77.47 and 73.49 %, respectively. Based on the polyphasic analysis, strain LMIT004 is suggested to represent a novel specie in the genus of , for which the name sp. nov. is proposed. The type strain is LMIT004 (=CICC 24871=KCTC 72948).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Amphidinium carterae , Bacteroidetes , dinoflagellate and Muricauda amphidinii
Funding
This study was supported by the:
  • Guangdong Science and Technology Department (Award 2019A1515011139)
    • Principle Award Recipient: HuiWang
  • Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) (Award GML2019ZD0606)
    • Principle Award Recipient: HuiWang
  • Innovative Research Group Project of the National Natural Science Foundation of China (Award 92051118)
    • Principle Award Recipient: HuiWang
© 2021 The Authors
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2021-03-18
2024-04-26
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Muricauda amphidinii sp. nov., a novel marine bacterium isolated from the phycosphere of dinoflagellate Amphidinium carterae
Int J Syst Evol Microbiol 71, 004764 (2021); https://doi.org/10.1099/ijsem.0.004764
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