The chemical reactions and pathways resulting in the formation of indole phytoalexins, any indole compound produced by plants as part of their defense response.
indole phytoalexin catabolic process
indoleacetic acid biosynthetic process +
indoleacetic acid conjugate biosynthetic process +
isoflavonoid phytoalexin biosynthetic process
melatonin biosynthetic process
positive regulation of phytoalexin biosynthetic process +