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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | De Vries, Sacco C. Gimenez-ibanez, Selena Rathjen, John P. Segonzac, Cécile Albrecht, Catherine Chinchilla, Delphine Zipfel, Cyril Boutrot, Freddy Schwessinger, Benjamin |
| Description | Author Affiliation: Albrecht C ( Laboratory of Biochemistry, Wageningen University, 6703 HA Wageningen, The Netherlands.); |
| Abstract | Plants and animals use innate immunity as a first defense against pathogens, a costly yet necessary tradeoff between growth and immunity. In Arabidopsis, the regulatory leucine-rich repeat receptor-like kinase (LRR-RLK) BAK1 combines with the LRR-RLKs FLS2 and EFR in pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) and the LRR-RLK BRI1 in brassinosteroid (BR)-mediated growth. Therefore, a potential tradeoff between these pathways mediated by BAK1 is often postulated. Here, we show a unidirectional inhibition of FLS2-mediated immune signaling by BR perception. Unexpectedly, this effect occurred downstream or independently of complex formation with BAK1 and associated downstream phosphorylation. Thus, BAK1 is not rate-limiting in these pathways. BRs also inhibited signaling triggered by the BAK1-independent recognition of the fungal PAMP chitin. Our results suggest a general mechanism operative in plants in which BR-mediated growth directly antagonizes innate immune signaling. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 1 |
| Volume Number | 109 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2012-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Arabidopsis Immunology Microbiology Brassinosteroids Pharmacology Plant Immunity Drug Effects Pseudomonas Metabolism Receptors, Pattern Recognition Signal Transduction Enzymology Arabidopsis Proteins Enzyme Activation Flagellin Protein Kinases Protein-Serine-Threonine Kinases Steroids, Heterocyclic Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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