ID 4.2.3.74 DE presilphiperfolanol synthase. CA (2E,6E)-farnesyl diphosphate + H2O = diphosphate + presilphiperfolan- CA 8beta-ol. CC -!- Presilphiperfolan-8beta-ol is the precursor of botrydial, CC a phytotoxic sesquiterpene metabolite secreted by the fungus CC Botryotinia fuckeliana (Botrytis cinerea), the causal agent of gray CC mold disease in plants. DR Q6WP50, BOT2_BOTFU ; //