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Screening of wild tomato species to infection with isolates of tomato mosaic, cucumber mosaic, and tomato spotted wilt viruses, occurring in the region of Kraków

Kazimierz Miczyński, Tadeusz Kobyłko, Barbara Czuber, Teresa Cybularz,
Zbigniew Gajewski, Ewa Hanus-Fajerska

Department of Botany
Faculty of Horticulture, Agricultural University
29 Listopada 54, 31-425 Kraków, Poland

28 accessions of wild tomato belonging to species of Lycopersicum peruvianum, L. glandulosum, L. chilense, Lpimpinellifolium, L. hirsutum, and L. pennellii were tested for their resistance to infection by mechanic inoculation with viruses of tomato mosaic (ToMV), cucumber mosaic (CMV), and tomato spotted wilt (TSWV). All plants of L. hirsutum alone showed complete resistance to ToMV, and one accession of L. peruvianum remained not infected ny TSWV. Other two accessions of that species exhibited also a high level of resistance (ca. 97% of inoculated plants remained uninfected) to the same virus. Resistance of the remaining accessions to infection with particular viruses ranged from 0 to 94% of inoculated plants. Not one of the tested forms was completely resistant simultaneosly to two or three viruses, although some of them exhibited a relatively high degree of resistance to infection with CMV and TSWV, CMV and ToMV, or TSWV and ToMV. It is suggested that from those accessions plants with multiple resistance genes to the tested viruses could be selected.

Miczyński K., Kobyłko T., Czuber B., Cybularz T., Gajewski Z., Hanus-Fajerska E., 1997. Screening of wild tomato species to infection with isolates of tomato mosaic, cucumber mosaic, and tomato spotted wilt viruses, occurring in the region of Kraków. Folia Horticulturae 9/2: 41-52.