Sugarbeet Disease May Have Second Source
11 de março de 2007 Scientists examining diseased sugarbeets from Greeley, Colorado, discovered that although the sugarbeets had the “crazy root” beard, they did not have BNYVV. Follow-up studies were conducted, and after searching published viral genomes, they found a match in the beet black scorch virus (BBSV). BBSV has only been known to occur in China, and shows different symptoms: Black scorch marks on the plant’s leaves.
ARS scientists are now trying to determine if the US sugarbeets infected with BBSV showing rhizomania-like symptoms possess genomic changes in the US isolates, and whether BBSV is a danger by itself, or only in conjunction with other diseases like rhizomania.
Read more about the research in the March 2007 issue of Agricultural Research magazine, available online at: http://www.ars.usda.gov/is/AR/archive/mar07/plant0307.htm
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