Nonhost resistance genes and race-specific resistance.
Apart from physical barriers, plants have two major types of defense against potential pathogens. In 'race-specific' resistance, plants match single mendelian resistance genes with the 'avirulence' genes possessed by races of a pathogen. Plants also employ the more complex and evolutionarily more robust system of 'nonhost resistance' against a broad range of pathogenic species. In peas, both types of resistance are associated with the expression of a common group of 'resistance response' genes.
Hadwiger
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Dept of Plant Pathology, Washington State University, Pullman 99164-6430.
Culley
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D002963:Cladosporium / Q000235:genetics* / Q000472:pathogenicity; D005798:Genes, Bacterial; D005800:Genes, Fungal; D007113:Immunity, Innate / Q000235:genetics*; D010935:Plant Diseases / Q000235:genetics*; D010944:Plants / Q000276:immunology*; D011548:Pseudomonadaceae / Q000235:genetics* / Q000472:pathogenicity; D013045:Species Specificity; D014774:Virulence / Q000235:genetics