[1] Slovak Acad Sci, Inst Virol, Biomed Res Ctr, Bratislava 84505, Slovakia
[2] DLR Rheinpfalz, Inst Plant Protect, Neustadt, Germany
[3] Comenius Univ, Comenius Univ Sci Pk, Bratislava 84104, Slovakia
[4] Mississippi State Univ, Dept Biochem Mol Biol Entomol & Plant Pathol, Mississippi State, MS 39762 USA