Antifeedant, Antifungal Cryptic Polyketides with Six Structural Frameworks from Tea Endophyte Propelled by the Antagonistic Coculture with Phytopathogen and Different Culture Methods.

The antagonistic coculture with tea phytopathogen induces antifungal cryptic metabolites from isogenesis endophyte against tea phytopathogens. Sixteen new polyketides with six structural frameworks including ten cryptic ones, named coldaldols A-C (-), collediol (), and daldinrins A-L (- and ), were found from the coculture of and by different culture methods. The unique framework of compounds and featured a benzopyran-C polyketone hybrid, and compounds - were characterized by the novel benzopyran dimer.

The antifungal metabolites isolated from maize endophytic fungus Fusarium sp. induced by OSMAC strategy.

Six new sesquiterpenes, fusarchlamols A-F (1, 2, 4-7); one new natural product of sesquiterpenoid, methyltricinonoate (3); and ten known compounds were found from Fusarium sp. cultured in two different media by the one strain many compounds strategy. The compounds (1, 2, and 4-11) were isolated from Fusarium sp.