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Researchers discover primer to plant defense system
Date:4/3/2009

ates the production of AZ11, a protein that the researchers found to be essential for the increased systemic plant immunity.

Azelaic acid moves throughout the stem and leaves and bolsters the plant's immune system so it can respond quicker and more effectively to diseases compared to nave plants, according to the researchers. Through this process, plants accumulate very high levels of the defense signal salicylic acid, and this helps inhibit the progression of secondary infections.

"With respect to future science, a number of other novel signatures are clearly evident and can be pursued as a component of the plant-microbe scientific focus area if that is a route we decide to go," Tschaplinski said.

In the meantime, the authors note that, "The identification of novel systemic acquired resistance components may be useful for plant protection and provides new insight into how some interactions trigger systemic plant immunity."


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Contact: Ron Walli
wallira@ornl.gov
865-576-0226
DOE/Oak Ridge National Laboratory
Source:Eurekalert

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