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A Synergism Induced by Satellite Panicum Mosaic Virus

February 1999 , Volume 12 , Number  2
Pages  163 - 166

Karen-Beth G. Scholthof

Department of Plant Pathology and Microbiology, Texas A&M University, College Station 77843-2132, U.S.A.

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Accepted 15 October 1998.

Panicum mosaic virus (PMV) induces a mild mottle on millet plants, but the addition of its satellite virus (SPMV) causes a severe chlorosis and stunting. Immunoblots, RNA blots, and sucrose density gradient analyses revealed increases of PMV RNA and its p8 and capsid proteins when plants were co-infected with SPMV. A unique feature associated with this satellite virus interaction was an increased rate of systemic infection of PMV.

© 1999 The American Phytopathological Society