Abstract
After infection by a necrotising pathogen, colonisation of the roots with certain beneficial microbes, or after treatment with various chemicals, many plants establish a unique physiological situation that is called the ‘primed’ state of the plant. In the primed condition, plants are able to ‘recall’ the previous infection, root colonisation or chemical treatment. As a consequence, primed plants respond more rapidly and/or effectively when re-exposed to biotic or abiotic stress, a feature that is frequently associated with enhanced disease resistance. Though priming has been known as a component of induced resistance for a long time, most progress in the understanding of the phenomenon has been made over the past few years. Here we summarize the current knowledge of priming and its relevance for plant protection in the field.
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Abbreviations
- BABA:
-
β-aminobutyric acid
- IR:
-
induced resistance
- ISR:
-
induced systemic resistance
- MAMP:
-
microbe-associated molecular pattern
- SA:
-
salicylic acid
- SAR:
-
systemic acquired resistance
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Acknowledgements
Research on priming in the Plant Biochemistry & Molecular Biology Group is supported by BASF, BASF Plant Science, Bayer CropScience, the German Science Foundation (DFG) and the Peter and Traudl Engelhorn Foundation.
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Goellner, K., Conrath, U. Priming: it’s all the world to induced disease resistance. Eur J Plant Pathol 121, 233–242 (2008). https://doi.org/10.1007/s10658-007-9251-4
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DOI: https://doi.org/10.1007/s10658-007-9251-4