Journal
PLANT SIGNALING & BEHAVIOR
Volume 1, Issue 4, Pages 179-184Publisher
TAYLOR & FRANCIS INC
DOI: 10.4161/psb.1.4.3221
Keywords
Arabidopsis; benzothiadiazole; defense response potentiation; 2,6-dichloroisonicotinic acid; elicitor; MAP kinase; parsley cell culture; priming; salicylic acid; sensitization
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Funding
- BASF
- BASF Plant Science, Bayer
- Heinrich Hertz-Foundation
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Upon infection with necrotizing pathogens many plants develop an enhanced resistance to further pathogen attack also in the uninoculated organs. This type of enhanced resistance is referred to as systemic acquired resistance (SAR). In the SAR state, plants are primed (sensitized) to more quickly and more effectively activate defense responses the second time they encounter pathogen attack. Since SAR depends on the ability to access past experience, acquired disease resistance is a paradigm for the existence of a form of plant memory. Although the phenomenon has been known since the beginning of the 20th century, major progress in the understanding of SAR was made over the past sixteen years. This review covers the current knowledge of molecular, biochemical and physiological mechanisms that are associated with SAR.
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