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| Lozoya-Saldaña,Héctor; Guzmán-Galindo,Leonel; Fernández-Pavia,Sylvia; Grünwald,Niklaus J.; McElhinny,Elaine. |
| Abstract The molecular identity of Phytophthora infestans strains infecting potatoes in the Toluca Valley has been documented. Nevertheless, the relationship of the P. infestans genotypes to the host’s genetic resistance is unclear. In order to identify potential host-pathogen specificity, isolates of the oomycete obtained from five potato varieties with differing levels of disease resistance were compared regarding mating type (MT), isozyme genotype for glucose-6-phosphate isomerase (Gpi) and peptidase (Pep), and sensitivity to metalaxyl. Also, host resistance components and specificity on the host-pathogen interaction were assessed twice in detached leaves in the laboratory and once in attached leaves in the greenhouse for three of the varieties. No... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Compatibility; Isozymes; Metalaxyl resistance; Genetic resistance; Host-pathogen specificity. |
| Ano: 2006 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952006000200205 |
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