Part of the gene cluster that mediates the biosynthesis of (2Z,4E,6E,10E)-9-hydroxydodeca-2,4,6,10-tetraenoic acid (BAA), (2E,4E,6E,10E)-9-hydroxydodeca-2,4,6,10-tetraenoic acid (BAB), and (2Z,4E,6E)-octa-2,4,6-trienedioic acid (PBA) (PubMed:33991663). The highly reducing polyketide synthase Ba17a is sufficent to produce PBA and BAA (PubMed:33991663). The still to be characterized protein Ba17b leads to an increased production of BAA as well as to the production of the new compound BAB (PubMed:33991663). BAA does not possess insecticidal activity against G.mellonella larvae, however, both BAA and BAB increase the growth of Candida albicans and BAA can mitigate the fungicidal effects of fluconazole over C.albicans, suggesting that generalist pathogens such as M.anisopliae, can potentially manipulate the yeast microbiota found in arthropods (and anywhere else) by the activity of compounds as BAA and BAB (PubMed:33991663). Secondary metabolite biosynthesis. Expression is induced under mimicked-infection conditions. Belongs to the SAT4 family.