Peniterester, a carotane-type antibacterial sesquiterpene from an artificial mutant Penicillium sp. T2-M20

Fitoterapia. 2020 Jan:140:104422. doi: 10.1016/j.fitote.2019.104422. Epub 2019 Nov 19.

Abstract

Peniterester (1), a new tricyclic sesquiterpene, together with 6 known compounds (2-7) were isolated from the secondary metabolites of an artificial mutant Penicillium sp. T2-M20 which was obtained from the parental strain Penicillium sp. T2-8 via UV irradiation as well as nitrosoguanidine (NTG) induction. Peniterester was only produced by the mutant T2-M20 on the basis of LC-MS analysis. Meanwhile, the results of in vitro bioactivities screening indicated that peniterester owned obvious antibacterial activities against Bacillus subtilis, Escherichia coli and Staphylococcus aureus with MICs of 8.0, 8.0 and 4.0 μg/mL, respectively.

Keywords: Antibacterial activity; Artificial mutation; Penicillium sp.; Secondary metabolites; Sesquiterpene.

MeSH terms

  • Anti-Bacterial Agents / isolation & purification
  • Anti-Bacterial Agents / pharmacology*
  • Bacillus subtilis / drug effects
  • Cell Line, Tumor
  • China
  • Escherichia coli / drug effects
  • Gastrodia / microbiology
  • Humans
  • Microbial Sensitivity Tests
  • Molecular Structure
  • Penicillium / chemistry*
  • Rhizome / microbiology
  • Secondary Metabolism
  • Sesquiterpenes / isolation & purification
  • Sesquiterpenes / pharmacology*
  • Staphylococcus aureus / drug effects

Substances

  • Anti-Bacterial Agents
  • Sesquiterpenes