Biosynthetic incorporation of labelled sodium acetates into
bisorbicillinol in Trichoderma sp. USF-2690 suggests that
bisorbicillinol is derived from 12 acetate units. Successful bioconversion
of the labelled bisorbicillinols to bisorbibutenolides (bislongiquinolides)
and bisorbicillinolides using the washed mycelium of the strain suggests
that there are biosynthetic routes from bisorbicillinol to
bisorbibutenolide and from bisorbicillinol to bisorbicillinolide.