Submitted to: American Phytopathological Society Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: April 16, 2004
Publication Date: June 11, 2004
Citation: Tzanetakis, I.E., Postman, J.D., Martin, R.R. 2004. Identification, detection and phylogenetic analysis of new viruses infecting mint [abstract]. American Phytopathological Society Annual Meeting, July 31-August 4, 2004, Anahein, CA. 94:S104. Publication P-2004-0708-AMA. Technical Abstract: Many mint clones at the USDA-ARS National Clonal Germplasm Repository at Corvallis, Oregon have exhibited symptoms similar to those associated with virus infection. For example, Mentha x gentiles L. 'Variegata' (NCGR MEN-454) has shown dramatic vein-banding symptoms. Virus purification from infected plants of this cultivar revealed the presence of a spherical virus which was identified by RT-PCR as Strawberry latent ringspot virus. The dramatic symptoms of this clone led us to believe that more than one virus might be involved in symptom development. Cloning and sequencing of dsRNA revealed two previously undescribed viruses are also present in this plant; a potex- and a closterovirus. The potexvirus, but not the closterovirus could be transmitted mechanically to a number of herbaceous hosts. Phylogenetic analysis revealed that the closterovirus had characteristics of all three genera of the family Closteroviridae, placing it in the center of the Closteroviridae universe.