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Updated: Dec 11, 2025

A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
Biphenyl metabolites from the patchouli endophytic fungus Alternaria sp. PfuH1
Fan-Dong Kong1, Tian-Feng Yi2, Qing-Yun Ma1
1Hainan Key Laboratory for Research and Development of Natural Product from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China; Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China.
Abstract:
Patchouli is a tropical medicinal and spice crop with high economic value, and the endophytic microorganism is also one of its important components and can provide new active compounds with medicinal use. In the present study, four new biphenyl compounds named 3-O-demethylaltenuisol (1), (-)-dialtenuisol (5) and (+)-dialtenuisol (6), and altertoxin VII (9), as well as six known related compounds, were isolated from the patchouli (Pogostemon cablin) endophytic fungus Alternaria sp. PfuH1. The structures of the new compounds were elucidated from spectroscopic data, ECD spectra analysis, and ECD calculations. Compounds 5 and 6 are a pair of dimeric axially chiral enantiomers. Compounds 2, 4, and 9 showed antibacterial activities against S. agalactiae with MIC values of 9.3, 85.3, and 17.3 μg/mL, respectively, and compound 4 also showed weak antibacterial activity against E. coli with MIC value of 128 μg/mL.
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