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ARS Home » Research » Publications at this Location » Publication #89967
Title: DISTRIBUTION OF CARLAVIRUS RED LASODA (RLASV)

Author
item Goth, Robert
item Goins, Ernest

Submitted to: American Journal of Potato Research
Publication Type: Abstract Only
Publication Acceptance Date: 6/9/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: A new Carlavirus was isolated from the potato (Solanum tuberosum) cv Red LaSoda. This virus is commonly known as the Red LaSoda virus (RLaSV). We studied the distribution of RLaSV in cultivars maintained in the USDA potato varietal collections l and 2. These collections are on Aroostook State Farm at Presque Isle, ME. Other than recommended methods to control insect vectors and rouging based on visual symptoms, no measures were taken to control the viruses in these plantings. We used Agdia ELISA PathoScreen RLaSV as the immunological assay to test for the presence of this virus in foliar tissues. Of the 135 cultivars assayed, all plants of cvs High Plains, Platte, Red LaSoda and Russet Norkotah tested positive for RLaSV. The average ELISA RLaSV titers for cvs High Plains, Platte, Red LaSoda and Russet Norkotah were 3.24, 1.56, 1.83 and 2.99, respectively. Similar results were obtained whether the tests were performed of tissues collected from the field in July 1997 or from tissues of plants grown from tubers in the greenhouse in Dec. 1997. These results suggest that although RLaSV is not widely distributed it is uniformly present in some cultivars. Extended studies on the distribution of this virus are in progress.