Ristaino, Jean Beagle Identification of the Tobacco Blue Mold Pathogen, Peronospora tabacina, by Polymerase Chain Reaction. [electronic resource] - Plant disease Jun 2007 - 685-691 p. digital Publication Type: Journal Article ISSN: 0191-2917 Standard No.: 10.1094/PDIS-91-6-0685 doi