Variation in Sensitivity of Different Grapevine Genotypes to Erysiphe necator Growing under Unfavourable Climatic Conditions

S. Boso, P. Gago, J.L. Santiago, M.C. Martínez


This paper reports the susceptibility to powdery mildew of 41 grapevine genotypes growing in the north and northwest of Spain over a three-year period. Although the humid climate of these vine-growing areas is not particularly favourable to the development of this disease, serious damages appears in some years when dry weather alternates with times of some rain. All the examined genotypes belonged to the collection of the Misión Biológica de Galicia (CSIC) (Pontevedra, Galicia, Spain). The incidence and severity of powdery mildew were determined on leaves three weeks after the onset of flowering and on clusters at harvest. The values for both variables were smaller than those recorded for other fungal diseases, although great differences in susceptibility between the different genotypes were observed. The most susceptible was Castañal (recently included in the Spanish Registry of Commercial Varieties), a genotype native to the O Rosal subzone of the Rias Baixas denomination of origin area. The present results could help viticulturalists grow different grapevine genotypes more successfully in regions with climatic conditions similar to those where the study was undertaken.


Clusters; Leaves; Erysiphe necator; Fungal diseases; Incidence; Vitis vinifera

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Amati, A., Piva, A., Castellari, M. & Arfelli, G.,1996. Preliminary studies on the effect of Oidium tuckeri on the phenolic composition of grapes and wines. Vitis 35,149-150.

Atak, A., 2017. Determination of downy mildew and powdery mildew resistance of some grape cultivars. S. Afr. J. Enol. Vitic., 38, 11-17

Boso, S., Santiago, J.L. & Martínez, M.C., 2005. A method to evaluate downy mildew resistance in grapevine. Agronomie 25, 163-165.

Carroll, J.E. & Wilcox, W.F., 2003. Effect of humidity on the development of grapevine powdery mildew. Phytopathology 93, 1137-1144.

Dai, G.H., Andary, C., Mondolot-Cosson, L. & Boubals, D., 1995. Histochemical studies on the interaction between three species of grapevine, Vitis vinifera, V. rupestris and V. rotundifolia and the downy mildew fungus, Plasmopara viticola. Physiol. Plant Pathol. 46, 177-188.

Frenkel, O., Portillo, I., Brewer, M.T., Péros, J.P., Cadle-Davidson, L. & Milgroom, M.G., 2012. Development of microsatellite markers from the transcriptome of Erysiphe necator for analysing population structure in North America and Europe. Plant Pathol. 61,106-119

Gadoury, D.M., Seeme, R.C. Pearson, W. Wilcox, F. & Dunst, R.M., 2001. Effects of powdery mildew on vine growth, yield and quality of Concord grapes. Plant Dis. 85, 137-140.

Gaforio, L., García-Muñoz, S., Cabello, F. & Muñoz-Organero, G., 2011. Evaluation of susceptibility to powdery mildew (Erysiphe necator) in Vitis vinifera varieties. Vitis 50(3). 123-126.

Huetz de Lemps, A. 1967. Vineyards and wines in Northwest of Spain. Volumes I-II. Institute of Geography. Letter faculty. =Vignobles et vins du Nord-Ouest de l´Espagne. Tomos I-II. Institut de Géographie. Faculté des Lettres, Bordeaux (in French).

Gubler, W.D., Rademacher, M.R. & Vasquez, S.J., 1999. Control of Powdery Mildew Using the UC Davis Powdery Mildew Risk Index. APSnet Features. Online. doi: 10.1094/APSnetFeature-1999-0199

Jarvis, W.R., Gubler, W.D.& Grove, G.G., 2002. Epidemiology of powdery mildews in agricultural pathosystems. Pages 169-199. In: Bélanger R. R., Bushnell, W.R. Dikana, A.J. Timothy, L.W. (eds.). The Powdery Mildews a Comprehensive Treatise. St. Paul. Minnesota. USA.

Langcake, P. & Pryce, R. J., 1976. The production of resveratrol by Vitis vinifera and other members of the Vitaceae as a response to infection or injury. Physiol. Mol. Plant Pathol. 9, 77-86.

Li, H., 1993. Studies on the resistance of grapevine to powdery mildew. Plant Pathol. 42, 792-796.

Merdinoglu, D., Blasi, P., Wiedemann-Merdinoglu, S., Mestre, P., Peressotti, E., Poutaraud, A., Prado, E. & Schneider, C., 2014. Breeding for durable resistance to downy and powdery mildew in grapevine. Acta Hortic. 1046, 65-72.

Montarry, J., Cartolaro, P., Delmotte, F., Jolivet, J. & Willocquet, L., 2008. Genetic structure and aggressiveness of Erysiphe necator populations during grapevine powdery mildew epidemics. Appl. Environ. Microbiol. 74, 6327-6332.

Montarry, J., Cartolaro, P., Richard-Cervera, S., & Delmotte, F., 2009. Spatio-temporal distribution of Erysiphe necator genetic groups and their relationship with disease levels in vineyards. Eur. J. Plant Pathol. 123, 61- 70.

Montero, C., Cristescu, S. M., Jiménez, J.B., Orea, J.M., Lintel Hekkert, S., Harren, F.J.M., & González Urena, A., 2003. Trans-resveratrol and grape disease resistance. A dynamical study by high-resolution laser-based techniques. Plant Physiol. 131, 129-138.

O.I.V., 2009. The OIV descriptor list for grape varieties and Vitis especies. Ed. Dedon, París.

Pearson, R.C. & Gartel, W.,1985. Occurrence of hyphae of Uncinula necator in buds of grapevine. Plant Dis. 69,149-151.

Pearson, R.C. & Gadoury, D.M., 1987. Cleistothecia, the source of primary inoculum for grape powdery mildew in New York. Phytopathology 77, 1509-1514.

Péros, J. P., Nguyen, T. H., Troulet, C., Michel-Romiti, C. & Notteghem, J. L., 2006. Assessment of powdery mildew resistance of grape and Erysiphe necator pathogenicity using a laboratory assay. Vitis 45 (1), 29–36.

Pezet, R., Gindro, K., Viret, O. & Spring, J.L., 2004. Glycosylation and oxidative dimerization of resveratrol are respectively associated to sensitivity and resistance of grapevine cultivars to downy mildew. Physiol. Mol. Plant Pathol. 65, 297–303.

Sall, M.A. & Wrysinski., J., 1982. Perennation of powdery mildew in buds of grapevine. Plant Dis. 66, 678-679.

SAS Institute Inc. 2000. SAS OnlineDoc, version 8. SAS institute, Inc., Cary, North Carolina, U.S.A.

Santiago, J.L., Boso, S., Gago, P., Alonso-Villaverde, V. & Martínez, M.C., 2008. A contribution to the maintenance of grapevine diversity: The rescue of Tinta Castañal (Vitis vinifera L.), a variety on the edge of extinction. Scientia Hortic. 116(2), 199-204.

Staudt, G., 1997. Evaluation of resistance to grapevine powdery mildew (Uncinula necator [Schw.] Burr., anamorph Oidium tuckeri Berk.) in accessions of Vitis species. Vitis 36, 151-154.

Van Der Spuy, J.E. & Mathee, F.N., 1977. Overwintering of the Oidium stage of Uncinula necator in the buds of the grapevine. Plant Dis. 61, 612-615.

Wang, Y., Li, Y., He, P., Chen, J., Lamikanra, O. & Lu, J., 1995. Evaluation of foliar resistance to Uncinula necator in Chinese wild Vitis species. Vitis 34, 159-164.

Ypema, H.L. & Gubler, W.D., 2000. The distribution of early season grapevine shoots infected by Uncinula necator from year to year: A case study in two California Vineyards. Am. J. Enol. Vitic. 51, 1-6.



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