New meroterpenoids from a soil-derived fungus Penicillium sp. SSW03M2 GY and their anti-virulence activity

J Antibiot (Tokyo). 2023 Feb;76(2):57-64. doi: 10.1038/s41429-022-00587-7. Epub 2022 Dec 16.

Abstract

Two new berkeley meroterpenoids (1 and 2), along with seven known compounds (3‒9) were isolated from a fungus, Penicillium sp. SSW03M2 GY derived from a sediment at Seosan bay, South Korea. Chemical structures of the isolated compounds were elucidated on the basis of 1D, 2D NMR, HRESIMS, and optical rotation. All the isolated compounds, 1 showed anti-virulence activity by significantly inhibiting α-toxin (Hla) secreted by methicillin-resistant Staphylococcus aureus without its growth inhibition.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Magnetic Resonance Spectroscopy
  • Methicillin-Resistant Staphylococcus aureus*
  • Molecular Structure
  • Penicillium* / chemistry
  • Republic of Korea