Reaction of Some New Bolivian Tuber-Bearing Solanum Species to Different Potato Pathogenic Viruses

Horváth, József and Hoekstra, R (1989) Reaction of Some New Bolivian Tuber-Bearing Solanum Species to Different Potato Pathogenic Viruses. ACTA PHYTOPATHOLOGICA ET ENTOMOLOGICA HUNGARICA, 24 (3-4). pp. 351-362. ISSN 0238-1249

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Abstract

Host-virus and resistance relations between 9 wild Solanum species (3 of them are botanically new) collected by the Bolivian German-Netherlands Potato Expedition in 1980 and 9 isolates of 6 viruses were studied. Of the 74 new host-virus relations become known during the investigations resistance was pointed out in the case of 3 wild Solanum species and 5 viruses: Solanum neocardenasii (potato virus Y, PVY), S. paucissectum (tobacco rattle virus, TRV), S. violaceimarmoratum (alfalfa mosaic virus, AMV; cucumber mosaic virus, CMV; potato virus X, PVX). Hypersensitive resistance was found between 8 wild Solanum species and 5 isolates of 4 viruses in 14 host-virus relations: Solanum alandiae (PVX, PVY, TRV), S. astleyi (PVX), S. circaeifolium ssp. quimense (PVX), S. mochicense (AMV, PVX), S. neocardenasii (AMV), S. neorossii (AMV, PVX), S. paucissectum (AMV, PVX), S. violaceimarmoratum (PVX). Further, between the wild Solanum species and viruses examined one locally latent relationship (Solanum alandiae - CMV) and 48 local and systemic, - as well as in the case of 5 wild Solanum species and 4 viruses 6 systemic host-virus relations were pointed out.

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