Evaluation of resistance to race 3, biovar 2 of Ralstonia solanacearum in tomato germplasm

Carmeille Amandine, Prior Philippe, Kodja Hippolyte, Chiroleu Frédéric, Luisetti Jacques, Besse Pascale. 2006. Evaluation of resistance to race 3, biovar 2 of Ralstonia solanacearum in tomato germplasm. Journal of Phytopathology, 154 (8) : 398-402.

https://doi.org/10.1111/j.1439-0434.2006.01112.x

Article de revue ; Article de revue à facteur d'impact

Version publiée - Anglais
Accès réservé aux personnels Cirad
Utilisation soumise à autorisation de l'auteur ou du Cirad.
533639.pdf
Télécharger (94kB) | Demander une copie

Résumé : Sources of resistance to tropical race 1 strains of #Ralstonia solanacearum#, the causative agent of bacterial wilt, have been identified in the tomato germplasm. Till, now no experimental data are available on #Lycopersicon# spp.(now Solanum spp.) sources for resistance to temperate race 3, biovar 2 strains. Eighty-two accessions belonging to different #Lypercopersicon esculentum# cv. Roma as susceptible control. No immunity or complete resistance was observed in any accession tested under our experimental conditions. Therefore, race 3 strain was demonstrated to be highly pathogenic on all the #Lycopersicon# accessions tested. Partial resistance was significantly detected in only one accession belonging to the species #Lypersicon peruvianum#, and one #L.esculentum var. cerasiforme# tomato line. Five other genotypes from the species #L.esculentum#, Lypersicon hirsutum# and #L. peravianum# were noteworthy. The Hawaii 7996 line represented the best source of partial resistance to race 3 with 52% of wilting. It can therefore be used as a starting point for introducing resistance to bacterial wilt caused by #R.solanacearum# race 3 in tomato and studying its genetic control.

Classification Agris : H20 - Maladies des plantes

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations