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Systemic signalling in plant defence.

eLS, 1-9 (2017)
DOI Verlagsversion bestellen
Systemic signalling involves a complex network of signal transduction and amplification that leads to the activation of defence genes and establishment of systemic resistance throughout the entire plant. On microbial invasion, pathogen-associated molecular patterns and effectors are frequently detected and recognised by plant receptors. Localised perception at the infection site rapidly triggers a cascade of early signalling events, including protein phosphorylation and production of reactive oxygen species. Subsequently, secondary signal molecules are synthesised and involved in amplification of defence signalling and the establishment of systemic acquired resistance (SAR). An increasing number of long-distance signalling intermediates has been identified. Most of these act together and specifically promote systemic defence via the regulation of the local release of a set of systemically mobile signals. In the systemic tissue, the induction of SAR depends on synergistic interactions between systemic and ubiquitous salicylic acid-associated immune signals.
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Publikationstyp Artikel: ePaper
Schlagwörter systemic acquired resistance;plant defence response;salicylic acid;long-distance signalling;signal transduction
Quellenangaben Band: , Heft: , Seiten: 1-9 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort Chichester