Equilibrium theory of erosional slopes approached by frequency distribution analysis; Part II

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ID: 292639
1950
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Abstract

Abstract

Plant sensor nucleotide-binding leucine-rich repeat (NLR) receptors detect pathogen effectors through their integrated domains (IDs). The RGA5 sensor NLR recognizes its corresponding effectors AVR-Pia and AVR1-CO39 from the blast fungus Magnaporthe oryzae through direct binding to its heavy metal-associated (HMA) ID to trigger the RGA4 helper NLR-dependent resistance in rice. Here we report a mutant of RGA5 named RGA5HMA5 that confers complete resistance in transgenic rice plants to the M. oryzae strains expressing the noncorresponding effector AVR-PikD. RGA5HMA5 carries three engineered interfaces, two of which lie in the HMA ID and the other in the C-terminal Lys-rich stretch tailing the ID. However, the RGA5 variants having one or two of the three interfaces, including replacing all the Lys residues with Glu residues in the Lys-rich stretch, failed to activate RGA4-dependent cell death of rice protoplasts. Altogether, this work demonstrates that sensor NLRs require a concerted action of multiple surfaces within and outside the IDs to both recognize noncorresponding effectors and activate helper NLR-mediated resistance, and has implications in structure-guided designing of sensor NLRs.
Reference Key
openalex_W2004728888 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors A. N. Strahler
Journal american journal of science
Year 1950
DOI
10.2475/ajs.248.11.800
URL
https://ajsonline.org/article/58246.pdf
Keywords Keywords not found

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