Salicylic acid and its role in defence against plasmodiophora brassicae

Salicylic acid is a crucial plant hormone involved defence responses against biotrophic pathogens. This thesis aimed to induce a defence response against the soil-borne biotroph, Plasmodiophora brassicae, by application of salicylic acid. Using broccoli and Arabidopsis thaliana pathway mutants I have shown that salicylic acid is essential in this interaction.