Alternariol (AOH), a mycotoxin synthesized by Alternaria species, displays numerous therapeutic and biological effects, including phytotoxic, cytotoxic, anti-HIV, anti-cancer, and anti-microbial properties. It functions by inhibiting the catalytic activity of topoisomerase I and II enzymes.
4-Hydroxyalternariol 9-methyl ether displays promising antioxidant effects. It also shows antibacterial activity against several tested bacterial pathogens with minimum inhibitory concentration values in the range of 86.7-364.7 uM.