| Literature DB >> 26251881 |
Abstract
The Wall Associated Kinases (WAKs) bind to both cross-linked polymers of pectin in the plant cell wall, but have a higher affinity for smaller fragmented pectins that are generated upon pathogen attack or wounding. WAKs are required for cell expansion during normal seedling development and this involves pectin binding and a signal transduction pathway involving MPK3 and invertase induction. Alternatively WAKs bind pathogen generated pectin fragments to activate a distinct MPK6 dependent stress response. Evidence is provided for a model for how newly generated pectin fragments compete for longer pectins to alter the WAK dependent responses.Keywords: Arabidopsis; cell wall; plant defense; receptors; signaling
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Year: 2015 PMID: 26251881 PMCID: PMC4622591 DOI: 10.1080/15592324.2015.1035854
Source DB: PubMed Journal: Plant Signal Behav ISSN: 1559-2316