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United States Department of Agriculture

Agricultural Research Service

Research Project: ENHANCING PATHOGEN DETECTION AND CROP PROTECTION IN SUGARBEET USING MOLECULAR TECHNOLOGIES Title: Impact of the Soybean Cyst Nematode on Seedling Diseases of Sugarbeet

Authors
item Rudoplh, Kurt -
item Nelson, Berlin -
item Bolton, Melvin

Submitted to: Sugarbeet Research and Extension Reports
Publication Type: Proceedings
Publication Acceptance Date: January 29, 2010
Publication Date: February 15, 2010
Repository URL: http://hdl.handle.net/10113/46874
Citation: Rudoplh, K.D., Nelson, B.D., Bolton, M.D. 2010. Impact of the Soybean Cyst Nematode on Seedling Diseases of Sugarbeet. 2009 Sugarbeet Research and Extension Reports, Plant Pathology. Available: http://www.sbreb.org/research/plant/plant09/plant09.htm

Interpretive Summary: The soybean cyst nematode (SCN; Heterodera glycines Ichinohe) is a new pathogen to the Red River Valley (RRV) region of Minnesota and North Dakota. SCN populations in the RRV have started to build to high levels in cropping rotations that include soybean, the main host for SCN. SCN is very closely related to the sugarbeet cyst nematode (SBCN; Heterodera schachtii Schmidt), a devastating pathogen of sugarbeet not known to exist in the RRV. Although sugarbeet is not considered a host of SCN, the nematode may attempt to penetrate sugarbeet roots to establish a feeding association. The penetration and disruption of the tissue by SCN could provide points of entry for sugarbeet pathogens or alter the physiology of the root to increase susceptibility to pathogens. The close relatedness of SCN and SBCN, in conjunction with the recent increases in soybean production in the RRV that are increasing SCN inoculum levels, is a potential concern for sugarbeet production if SCN increases severity and/or occurrence of other sugarbeet diseases. This research project will investigate the influence of SCN on seedling diseases of sugarbeet.

Technical Abstract: The soybean cyst nematode (SCN; Heterodera glycines Ichinohe) is a new pathogen to the Red River Valley (RRV) region of Minnesota and North Dakota. SCN populations in the RRV have started to build to high levels in cropping rotations that include soybean, the main host for SCN. SCN is very closely related to the sugarbeet cyst nematode (SBCN; Heterodera schachtii Schmidt), a devastating pathogen of sugarbeet not known to exist in the RRV. Although sugarbeet is not considered a host of SCN, the nematode may attempt to penetrate sugarbeet roots to establish a feeding association. The penetration and disruption of the tissue by SCN could provide points of entry for sugarbeet pathogens or alter the physiology of the root to increase susceptibility to pathogens. The close relatedness of SCN and SBCN, in conjunction with the recent increases in soybean production in the RRV that are increasing SCN inoculum levels, is a potential concern for sugarbeet production if SCN increases severity and/or occurrence of other sugarbeet diseases. This research project will investigate the influence of SCN on seedling diseases of sugarbeet.

Last Modified: 12/20/2014
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