A long-distance inhibitory system regulates haustoria numbers in parasitic plants

Transcriptomic response changes following infection in shoots of the parasitic plant Phtheirospermum japonicum. We performed RNAseq on shoots of Phtheirospermum japonicum infecting and not infecting at 10 days after addition of the host Arabidopsis thaliana. We investigated the systemic transcriptomic changes in the shoot following the establishment of haustoria in the roots of P.japonicum. Transcriptomic changes in the shoots of 17 days old Phtheirospermum japonicum that has been infecting 7 days old Arabidopsis thaliana (Col-0) for 10 days in vitro. Samples taken at 10 days after addition of the host. Shoots from infecting plants were compared to shoots from not-infecting plants grown in the same conditions.