In vitro production of the meroterpene bakuchiol by Psoralea drupacea Bge (Fabaceae) has been studied using aseptically-grown plants, callus cultures of different origin, cell suspensions and transgenic hairy root cultures. The effect of phytohormones and methyl jasmonate on bakuchiol production was also investigated. Bakuchiol was not detected in cell suspensions or hairy root preparations of P. drupacea. In contrast, aerial parts of P. drupacea grown in vitro were found to accumulate up to 11% dry weight of bakuchiol and can therefore be regarded as a potentially useful source of this antimicrobial compound.

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