To investigate whether Pi signalling affects the response of Arabidopsis to P. cinnamomi, ecotype Col-0 and several PSR mutants phr1-1, pho2-1, and pho1-2 were screened for their susceptibility to the pathogen and the level of infection was determined quantitatively according to Eshraghi et al. [37]. This evidence concerns the gene JMJD6 and infection.