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Submitted to: Sugarbeet Research and Extension Reports
Publication Type: Proceedings Publication Acceptance Date: 1/23/2006 Publication Date: 2/6/2006 Citation: Weiland, J.J. 2006. Presence and distribution of BNYVV and BSBMV in the Glyndon rhizomania research site in 2005. 2005 Sugarbeet Research and Extension Reports, Cooperative Extension Service, North Dakota State University. 36:315-322. Interpretive Summary: Technical Abstract: Sugarbeet Rhizomania is a serious disease in many growing regions of the world that effects root growth and morphology and beet yield (Duffus and Ruppel, 1993). Disease symptoms are caused by beet necrotic yellow vein virus (BNYVV; see http://image.fs.uidaho.edu/vide/descr086.htm for a description) infection primarily in root tissues although virus movement to upper leaves of the plant may cause classic vein necrosis or fluorescent yellowing of the leaves. The virus is transmitted to beet roots by the Plasmodiophoromycete fungus Polymyxa betae which uses a motile zoospore to seek out root surfaces. The fungal vector P. betae transmits other viruses of sugarbeet having a morphology similar to that of BNYVV, namely beet soilborne mosaic virus (BSBMV), beet soilborne virus (BSBV) and beet virus Q (BVQ). Whereas BSBMV and BSBV are known to exist in the U.S., BVQ has only been reported to occur in Europe. The Glyndon MN research site for Rhizomania studies consists of 80 acres previously confirmed for the presence of BNYVV. Determination of the spatial distribution of BNYVV and related viruses across the research site would produce data that could be used by other investigators as they evaluate the performance of varieties and/or treatments tested at the location. This study reports the third year testing of sugarbeet acres planted at the site in 2005 using enzyme-linked immunosorbant assay (ELISA). |
