Secondary metabolites of aeromonas veronii strain A134 isolated from a Microcystis aeruginosa Bloom

Gad Weiss, Dimitry Kovalerchick, Omer Murik, Assaf Sukenik, Aaron Kaplan, Shmuel Carmeli

Research output: Contribution to journalArticlepeer-review

Abstract

Aeromonas veronii strain A134 was isolated from Microcystis aeruginosa colonies collected from Lake Kinneret (Sea of Galilee), Israel. The Aeromonas culture media inhibited the growth of M. aeruginosa (strain MGK). The crude extract of a large-scale culture of A. veronii A134 was separated in a few chromatographic steps to yield three new secondary metabolites, 9-chlorolumichrome (1), veronimide (2) and veronipyrazine (3), along with a known lumichrome and several known diketopiperazines. The structures of the new compounds were established by analyses of the data from 1D and 2D NMR experiments and HRMS data of the compounds, as well as a single-crystal X-ray analysis of synthetic 1. The structure elucidation and proposed biogenesis of the new compounds are described below.

Original languageEnglish
Article number110
JournalMetabolites
Volume9
Issue number6
DOIs
StatePublished - Jun 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Aeromonas veronii
  • Microcystis aeruginosa
  • Secondary metabolites

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Biochemistry
  • Molecular Biology

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