Abstract

ANTIVIRAL ACTIVITY OF CLOVE AND BITTER ALMOND OILSAGAINSTBEAN YELLOW MOSAIC VIRUS (BYMV) INFECTING FABA BEAN IN IRAQ

N. A. Alkuwaiti*, L. J. Sabier and Mena Waleed Hatem

Abstract

This study was initiated to test the antiviral effect oftwo essential oils against Bean yellow mosaic virusinfectingfaba bean plants.Clove and bitter almond oils were selected to test their activities.BYMV source was obtained from infected faba been seeds. Symptomatic plants grown were tested for BYMV infection using double antibody sandwich-enzyme linked immunoassay (DAS-ELISA). BYMV infected plants were sprayed with 5% clove oil and bitter almond oil (20 replicates each) twice within 2 weeks intervals. Results revealed symptomatic faba bean plants, for both treatments, were improved when symptoms were faded or disappeared. Faba bean plants treated with clove oilCO showed lower virus concentration more than bitter almond oil BAO when tested by DAS-ELISA when means of absorption values were 0.72 and 1.32 respectively compared to 2.92 for infected plantcontrol IPC. Growth parameters showed plants treated with BAO Our results suggest that essential oil treatmentscould be a promising method to control BYMV infectingfaba bean in Iraq.

Keywords: potyviruses, Viciafaba, virus disease, induced resistance, broad bean, Eugenol.