Phytophthora and Pythium species are among the most aggressive plant pathogens, as they invade many economically important crops and forest trees. They secrete large amounts of 10 kDa proteins called elicitins that can act as elicitors of plant defence mechanisms. These proteins may also induce a hypersensitive response (HR) including plant cell necrosis, with different levels of toxicity depending on their pI....
The oomycetous fungus Phytophthora cinnamoni plays and important role in the necrotic activity observed on feeder root of cork oaks (Quercus suber L.) and eucalyptus (eucalyptus marginata Donn. Ex. Sm.)trees reducing the capacity of these hosts to absorb water and nutrients.
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