Optogenetic control of transgene expression in Marchantia polymorpha.
Abstract:
The model liverwort Marchantia polymorpha is an emerging testbed species for plant metabolic engineering but lacks well-characterized inducible promoters, which are necessary to minimize biochemical and physiological disruption when over-accumulating target products. Here, we demonstrate the functionality of the light-inducible plant-usable light-switch elements (PULSE) optogenetic system in Marchantia and exemplify its use through the light-inducible overproduction of the bioplastic poly-3-hydroxybutyrate (PHB).