Trisporic acid stimulates gene transcription of terpenoid biosynthesis in Blakeslea trispora

► TA, the pheromone of Blakeslea trispora, increases terpenoid production. ► TA increased the transcripts of several genes involved in terpenoid biosynthesis. ► The action of TA results from higher expression of these genes. ► Terpenoid biosynthesis could be regulated at transcription level by TA.