Are Polymyxa spp. specifi c carriers of plant viruses ?
(2008) the seventh symposium of the international working group on plant viruses with fungal vectors — Location: Quedlinburg, Germany (1.September.2008)
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- Abstract
- Little is currently known about the interactions between plant viruses and their plasmodiophorid vectors Polymyxa betae and P. graminis. More than 15 viruses belonging to the Beny-, Bymo-, Furo-, Peclu- and Pomovirus genera are transmitted and associated with severe diseases, such as sugar beet rhizomania, mosaics on cereals and peanut clump. The pathosystems associated with these syndromes are complex. Distinct species of viruses may be associated within a region, a fi eld or even a plant (Beet necrotic yellow vein virus, Beet soil-borne mosaic virus, Beet soil-borne virus and Beet virus Q on sugar beet; Soil-borne cereal mosaic virus, Soil-borne wheat mosaic virus, Barley yellow mosaic virus and Barley mild mosaic virus or Wheat spindle streak mosaic virus on barley or wheat). Some viruses cause different symptoms on distinct plant species (Peanut clump virus on peanut and sugar cane, Indian peanut clump virus on peanut and cereals, BNYVV on Chenopodiaceae). Their host ranges are often wider than the ranges of plants showing symptoms. In addition, at least two P. graminis form species are involved in pathosystems (cereal mosaics or peanut clump disease). Specifi c interactions between viruses and plants or between Polymyxa spp. and plants have been examined in many host range studies and molecular and genomic characterization studies, but the transmission of these viruses by their vectors needs more investigation. The mode of virus transmission by Polymyxa and the interactions between the viruses and their vectors are key factors in the epidemiological development infl uencing the future evolution of these pathosystems.
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Citations
Legrève, A., Dieryck, B., Vaïanopoulos, C., Nagy, C., Gilmer, D., & Bragard, C. (2008). Are Polymyxa spp. specifi c carriers of plant viruses ? In Charlie M. Rush (ed.), Proceedings of the seventh symposium of the international working group on plant viruses with fungal vectors (p. p. 32-37). https://hdl.handle.net/2078.5/255904