Plant Disease (2003) 87, 960-964

Juan Antonio Díaz, Cristina Mallor, Carmen Soria, Rocío Camero, Elisa Garzo, Alberto Fereres, José María Alvarez, María Luisa Gómez-Guillamón, Marisol Luis-Arteaga and Enrique Moriones (2003)
Potential sources of resistance for melon to nonpersistently aphid-borne viruses
Plant Disease 87 (8), 960-964
Abstract: Two hundred and sixty-eight Cucumis melo and wild relative accessions were evaluated for resistance to Cucumber mosaic virus (CMV), Papaya ringspot virus strain W (PRSV-W), Watermelon mosaic virus (WMV), and Zucchini yellow mosaic virus (ZYMV). Symptom development and systemic infection based on double antibody sandwich enzyme-linked immunosorbent assays were monitored. Sources of resistance were scarce. However, a number of them were found among the C. melo accessions tested. Thus, the accession C-189 behaved similarly to PI 161375 and showed resistance to "common" CMV strains although it was infected by a "song" type CMV. For WMV, the accessions C-768 and C-425, although infected, exhibited very mild symptoms, and recovery from infection occurred in some occasions in the former. A similar trait was also found in C-105, although in this case symptoms rarely appear and part of the plants are not infected. In addition, C-105 was highly resistant to virus transmission by Aphis gossypii, similarly to PI 161375. Accessions C-885 and C-769 exhibited resistance to PRSV-W, WMV, and ZYMV; therefore they are potential sources of multiple resistance. Resistance traits were also found in wild relatives that could be exploited when interspecific barriers with C. melo can be circumvented.
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Database assignments for author(s): Cristina Mallor, Alberto Fereres, José Ma. Alvarez

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphis gossypii	Melon (Cucumis melo)	Spain (continental)
	Cucumber mosaic virus	Melon (Cucumis melo)	Spain (continental)
	Zucchini yellow mosaic virus	Melon (Cucumis melo)	Spain (continental)
	Watermelon mosaic virus	Melon (Cucumis melo)	Spain (continental)
	Papaya ringspot virus W	Melon (Cucumis melo)