Summary
An area of 15 000 ha on the Western slopes of the volcano Nevado de Toluca was surveyed during 1982–1986. The occurrence of late blight (Phytophthora infestans) was studied in 1986 along five long (7–10 km) transects from an altitude of 2900 m to 3900 m, the upper limit ofSolanum demissum (dms) and in all years in some other sites. Late blight was confined to scattered pockets, 100–500 m in diameter, separated by several kilometers. In 789 colonies of wildSolanum spp., each consisting of 4 to >100 plants per colony ofdms, verrucosum (ver), iopetalum, brachycarpum, × edinense, stoloniferum or one unidentified species, symptoms were found in 10% of the colonies or less than 1% of the plants in each colony. Plants had few (1–2) lesions which did not affect vigour. No infected tubers were found. Most (64%) of the infected colonies were ofdms, the predominant species (69%). Colonies ofver were less frequent (11%) and 17% were infected. No infected plants were found in the unidentified species, thought to bedms×ver.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Bruyn, Helena L. G. de, 1926. The overwintering ofPhytophthora infestans (Mont.) de Bary.Phytopathology 16: 121–140.
Crosier, W., 1934. Studies in the biology ofPhytophthora infestans (mont.) de Bary. Memoirs of the Cornell Agricultural Experimental Station, 155 pp.
Galindo Alonso, J. & M. E. Gallegly, 1960. The nature of sexuality inPhytophthora infestans.Phytopathology 50: 123–128.
Gallegly, M. E. & J. Galindo, 1958. Mating types and oospores ofPhytophthora infestans in nature in Mexico.Phytopathology 48: 274–277.
Gough, F. J., J. J. Smoot, H. A. Lamey & J. J. Eichenmuller, 1957. Germination of oospores ofPhytophthora infestans (abstract).Phytopathology 47: 13.
Hirst, J. M., 1955. The early history of a potato blight epidemic.Plant Pathology 4: 44–50.
Howard, H. W., 1970. Genetics of the potato,Solanum tuberosum. London, Logos Press Ltd.
Lapwood, D. H., 1971. Observations on blight (Phytophthora infestans) and resistant potatoes at Toluca, Mexico.Annals of Applied Biology 68: 41–53.
Makela, Keiho, 1966. Factors influencing the epidemics ofPhytophthora infestans (Mont.) de Bary in Finland.Acta Agraria Fennica 104 (2): 1–100.
Mills, W. R. & J. S. Niederhauser, 1953. Observations on races ofPhytophthora infestans in Mexico.Phytopathology 43: 454–455.
Niederhauser, J. S., J. Cervantes & L. Servin, 1954. Late blight in Mexico and its implications. Phytopathology 44: 406–408.
Niederhauser, J. S. & W. R. Mills, 1953. Resistance ofSolanum species toPhytophthora infestans in Mexico.Phytopathology 43: 456–457.
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.
Romero, S. & D. C. Erwin, 1967. Genetic recombination in germinated oospores ofPhytophthora infestans. Nature 215: 1393–1394.
Rowe, P. R., 1969. Nature, distribution, and use of diversity in the tuber-bearingSolanum species.Economic Botany 23: 330–338.
Smoot, J. J., F. J. Gough, H. A. Lamey, J. J. Eichenmuller & M. E. Gallegly, 1958. Production and germination of oospores ofPhytophthora infestans.Phytopathology 48: 165–171.
Toxopeus, H. J., 1964. Treasure-digging for blight resistance potatoes.Euphytica 13: 206–222.
Umaerus, V., 1970. Studies on field resistance toPhytophthora infestans 5. Mechanisms of resistance and applications to potato breeding.Zeitschrift für Pflanzenzüchtung 63: 1–23.
Umaerus, V., M. Umaerus, L. Erjefalt & B. A. Nilsson, 1983. Control ofPhytophthora by host resistance: Problems and progress. In: D. C. Erwin, S. Bertnicki-Garcia & P. H. Tsao (Eds),Phytophthora. Its biology, taxonomy, ecology, and pathology. American Phytopathological Society, St Paul, Minnesota, pp 315–326.
Zaag, D. E. van der, 1956. (Overwintering and epidemiology ofPhytophthora infestans and some new possibilities of control).Tijdschrift Plantenziekten 62: 147–154.
Zaag, D. E. van der, 1959. Some observations on breeding for resistance toPhytophthora infestans.European Potato Journal 2: 278–286.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
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. 2. Distribution ofPhytophthora infestans . Potato Res 33, 341–347 (1990). https://doi.org/10.1007/BF02359308
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02359308