Publication Date:
2001-01-06
Description:
Plant disease resistance (R) genes control the recognition of specific pathogens and activate subsequent defense responses. We show that the Arabidopsis thaliana locus RESISTANCE TO POWDERY MILDEW8 (RPW8) contains two naturally polymorphic, dominant R genes, RPW8.1 and RPW8.2, which individually control resistance to a broad range of powdery mildew pathogens. Although the predicted RPW8.1 and RPW8.2 proteins are different from the previously characterized R proteins, they induce localized, salicylic acid-dependent defenses similar to those induced by R genes that control specific resistance. Apparently, broad-spectrum resistance mediated by RPW8 uses the same mechanisms as specific resistance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xiao, S -- Ellwood, S -- Calis, O -- Patrick, E -- Li, T -- Coleman, M -- Turner, J G -- New York, N.Y. -- Science. 2001 Jan 5;291(5501):118-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11141561" target="_blank"〉PubMed〈/a〉
Keywords:
Alleles
;
Amino Acid Sequence
;
Arabidopsis/*genetics/*microbiology/physiology
;
*Arabidopsis Proteins
;
Ascomycota/growth & development/*pathogenicity
;
Base Sequence
;
Cosmids
;
Genes, Dominant
;
*Genes, Plant
;
Hydrogen Peroxide/metabolism
;
Molecular Sequence Data
;
Open Reading Frames
;
*Plant Diseases
;
Plant Proteins/chemistry/*genetics/physiology
;
Plants, Genetically Modified
;
Polymorphism, Genetic
;
Salicylic Acid/metabolism
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink