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   To understand the disease resistance mechanisms active towards Phytophthora species, an Arabidopsis - Phytophthora brassicae pathosystem was established in our lab.
   Genetic evidence suggests that the resistance against P.brassicae is based on salicylate-, ethylene- or jasmonic acid- independent signaling paythway (Plant Journal 28, 293, 2001).

In the compatible interaction, the pathogen invade the host plant.
The mycelium grows in the cells and complete collapse of the leaves is visible after a couple of days.
The plant can not trigger defence reactions.