ISHS Acta Horticulturae 234: VII International Symposium on Virus Diseases of Ornamental Plants
PRESENT STATUS OF THE STUDIES ON ORNAMENTAL PLANT VIRUS DISEASES IN BRAZIL |
| Author: | E.W. Kitajima |
| Abstract:
Diseases of ornamental plants had deserved little attention in Brazil because, although being an activity in expansion, ornamental plant business is still very limited. As a whole it involves an estimate of US$ 100 millions, from which less than 10% is intended for export. Concerning viral problems, there is no report of serious outbreaks, but a survey on the literature available revealed that several virus and viruslike pathogens have been described affecting ornamental plants. Probably the oldest register refers to a mosaic in rose by Kramer, in 1940. Since then various viruses have been described in flowering, bulb, foliage plants: infectious chlorosis of malvaceae ( in Abutylon, Hibiscus, Malva); cucumber mosaic virus (in ornamental musaceae, orchid, periwinkle, some commelinaceae, Salvia, Allamanda); dahlia mosaic virus; caulifower mosaic virus in Mathiola; uncharacterized potyviruses in Trapeolum and Tradescantia; several orchid viruses (orchid ringspot, Cymbidium mosaic, Odontoglossum ringspot); uncharacterized rhabdoviruses in Hibiscus, Chrysantemum, aster, orchid; Cassia mottle virus in some Cassia spp.; Bidens mosaic virus in Coreopsis; Malva vein clearing and Malva vein necrosis; cactus virus X and possibly Sammon's Opuntia virus; tobacco streak virus in dahlia; tomato spotted wilt virus in daisy; bean yellow mosaic virus in gladiolus; pepper ringspot virus in Transvaal daisy; mycoplasmalike organisms in daisy, periwinkle, Hibiscus and Gomphocarpus. | |
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