Curvulinic acid is a fungal metabolite originally isolated from C. siddiqui.1 It inhibits C. bursa-pastoris seed germination, root growth, and shoot growth by 73.3, 73.5, and 66.7%, respectively, when used at a concentration of 600 µg/ml.2
1.Kamal, A., Ahmad, N., Khan, M.A., et al.Studies in the biochemistry of microorganisms—I: Curvulin and curvulinic acid, metabolic products of Curvularia siddiquiTetrahedron18(4)433-436(1962) 2.Li, E., Yea, Y., Wang, X., et al.Herbicidal activity of curvulinic acid isolated from Nimbya alternantheraeNat. Prod. Commun.7(1)51-52(2012)