Summary
A survey of races ofPhytophthora infestans was made in 1985 and 1986 on the western slopes of the volcano Nevado de Toluca, Mexico. Isolates were collected from infected plants of wildSolanum species found in five long (7–10 km) and some short (300–500 m) transects. The study are of 15 000 ha was between 2900 and 3900 m altitude. Isolates were collected fromSolanum demissum (35 isolates),verrucosum (11),iopetalum (2),brachycarpum (7),stoloniferum (2), r-genotype (9) and from differential hosts (11).
No isolate was identified as race 0. Ten virulence genes were identified with a set of differential hosts and the most common were numbers 2 and 4. Isolates with eight virulence genes were the most common and those with ten were found on eight occasions in the natural habitat and on three in the experimental fields.
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References
Anonymous, 1976. Annual report of International Potato Center. Apartado Postal 5659, Lima, Peru. 25 pp.
Anonymous, 1977. Annual report of International Potato Center. Apartado Postal 5969, Lima, Peru. 33 pp.
Black, W., C. Mastenbroek, W. R. Mills & L. Peterson, 1953. A proposal for an International nomenclature of races ofPhytophthora infestans and of genes controlling immunity inSolanum demissum derivatives.Euphytica 2: 173–279.
Doling, D. A., 1956. Distribution of physiological races ofPhytophthora infestans (Mont.) de Bary in Northern Ireland.Nature 177: 230.
Fernandez-Pavia, Sylvia Patricia, 1985. Caracterizacion de la resistencia en diversos clones de papita guera (Solanum cardiophyllum y S. eherenbergii (Bitt) al ataque dePhytophthora infestans (Mont.) de Bary. Tesis Maestro en Ciencias, Colegio de Postgraduados, Chapingo, Mexico.
Galindo-Alonso, J. & M. E. Gallegly, 1960. The nature of sexuality inPhytophthora infestans.Phytopathology 50: 123–128.
Gallegly, M. E. & J. J. Eichenmuller, 1959. The spontaneous appearance of the potato race 4 character in cultures ofPhytophthora infestans.American Potato Journal 36: 45–51.
Graham, K. M., J. S. Niederhauser & S. Romero, 1959. Observations of races ofPhytophthora infestans in Mexico during 1956–1957.American Potato Journal 36: 196–203.
Graham, K. M., 1955. Distribution of physiological races ofPhytophthora infestans (Mont.) de Bary in Canada.American Potato Journal 32: 277–282.
Huerta-Miranda, Eva, 1977. Aparicion cronologica de razas fisiologicas dePhytophthora infestans (Mont.) de Bary causante del tizon tardio de la papa y del tomate. Tesis profesional Instituto Politecnico Nacional.
Malcolmson, Jean F., 1969. Races ofPhytophthora infestans occurring in Great Britain.Transactions of the British Mycological Society 53: 417–423.
Malcolmson, Jean F., 1970. Vegetative hybridity inPhytophthora infestans.Nature 225: 971–972.
Malcolmson, Jean F., 1979. Isolation and identification of races ofPhytophthora infestans from breeders' assessment plots.Transactions of the British Mycological Society 73: 155–156.
Mills, W. R. & J. S. Niederhauser, 1953. Observations on races ofPhytophthora infestans in Mexico.Phytopathology 43: 454–455.
Niederhauser, J. S. & W. R. Mills, 1953. Resistance ofSolanum species toPhytophthora infestans in Mexico.Phytopathology 43: 456–457.
Niederhauser, J. S., J. Cervantes & L. Servin, 1954. Late blight in Mexico and its implications.Phytopathology 44: 406–408.
Reddick, D., 1932. Some diseases of wild potatoes in Mexico.Phytopathology 22: 609–612.
Rivera-Peña, A. & J. Molina Galan, 1989. Wild tuber-bearing species ofSolanum and incidence ofPhytophthora infestans (Mont.) de Bary on the western slopes of the volcano Nevado de Toluca. 1.Solanum species.Potato Research 32: 181–195.
Rivera-Peña, A., 1990a. Wild tuber-bearing species ofSolanum and incidence ofPhytophthora infestans (Mont.) de Bary on the western slopes of the volcano Nevado de Toluca. 2. Distribution ofPhytophthora infestans.Potato Research 33: 341–347.
Romero, S. & D C. Erwin, 1967. Genetic recombination in germinated oospores ofPhytophthora infestans.Nature 215: 1393–1394.
Schöber, Bärbel, 1983. Definition und Auftreten der Pathotypen vonPhytophthora infestans (Mont.) de Bary.Der Kartoffelbau 34: 156–158.
Shattock, R. C., B. D. Janssen, R. Whitebread & D. S. Shaw, 1977. An interpretation of the frequencies of host specific phenotypes ofPhytophthora infestans in North Wales.Annals of Applied Biology 86: 249–260.
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Rivera-Peña, A. Wild tuber-bearing species ofSolanum and incidence ofPhytophthora infestans (Mont.) de Bary on the Western slopes of the volcano Nevado de Toluca. 3. Physiological races ofPhytophthora infestans . Potato Res 33, 349–355 (1990). https://doi.org/10.1007/BF02359309
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DOI: https://doi.org/10.1007/BF02359309