Marine Drugs (Apr 2019)

Marine Bacterium <i>Vibrio</i> sp. CB1-14 Produces Guanidine Alkaloid 6-<i>epi</i>-Monanchorin, Previously Isolated from Marine Polychaete and Sponges

  • Tatyana Makarieva,
  • Larisa Shubina,
  • Valeria Kurilenko,
  • Marina Isaeva,
  • Nadezhda Chernysheva,
  • Roman Popov,
  • Evgeniya Bystritskaya,
  • Pavel Dmitrenok,
  • Valentin Stonik

DOI
https://doi.org/10.3390/md17040213
Journal volume & issue
Vol. 17, no. 4
p. 213

Abstract

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Twenty-three bacterial strains were isolated from the secreted mucus trapping net of the marine polychaete Chaetopterus variopedatus (phylum Annelida) and twenty strains were identified using 16S rRNA gene analysis. Strain CB1-14 was recognized as a new species of the genus Vibrio using the eight-gene multilocus sequence analysis (MLSA) and genome sequences of nineteen type Vibrio strains. This Vibrio sp. was cultured, and 6-epi-monanchorin (2), previously isolated from the polychaete and two sponge species, was found in the cells and culture broth. The presence of the 6-epi-monanchorin was confirmed by its isolation followed by 1H NMR and HRESIMS analysis. These results showed the microbial origin of the bicyclic guanidine alkaloid 2 in C. variopedatus.

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