A Shared Biosynthetic Pathway for Botcinins and Botrylactones Revealed Through Gene Deletions

Isotopic labelling experiments and the study of mutants with disrupted genes encoding botcinic acid have revealed a common link in the biosynthesis of the polyketide toxins excreted by Botrytis cinerea: botcinins and botrylactones. Furthermore, the results reported here shed light on the origin of the starter unit, thereby solving a long-standing mystery in the biosynthesis of botcinins.