Identification of antigenic activity apple mosaic virus method of DAS-ELISA-test after storage of hop samples (Humulus lupulus)
The results of ApMV diagnostics efficiency with using frozen leaves as the tested material were presented in the article. It was determined that after leaves storage at -20 °C optical density did not differ significantly from using of fresh material. Conservation of antigenic activity didn’t depend on host plant cultivar. The estimation of ELISA-test susceptibility using the range of cell sap dilution showed that using the plant sample with high concentration of virus made possible to detect ApMV in highly diluted solution (up to 1:1000). Storage of plant extracts from frozen leaves after homogenization influenced negatively on viral capacity to react with cover antibodies.