TY - JOUR A2 - Kocsy, Gábor AU - Kiptui, Lucy J. AU - Toroitich, Faith J. AU - Kilalo, Dora C. AU - Obonyo, Meshack PY - 2020 DA - 2020/12/07 TI - Interaction between Cowpea Aphid-Borne Mosaic Virus Isolates and Its Effect on Passion Fruit Woodiness Disease onPassiflora edulisSims andPassiflora ligularisJuss SP - 8876498 VL - 2020 AB - In East Africa, passion fruit woodiness disease is caused by potyviruses, among which are Cowpea Aphid-Borne Mosaic Virus (CABMV) and Uganda Passiflora Virus (UPV). Previous studies suggest that synergistic interaction of viruses causes mild or severe outcomes of the disease. However, mixed infections of these viruses have not been documented. The aim of this study was to determine the effects of the interaction between two CABMVisolates causing passion fruit woodiness disease in Kenya. Healthy plants were mechanically inoculated at six-leaf stage. Four treatments were used: CABMVisolate 1, CABMVisolate 2, mixture of the two isolates, and noninoculated control. The test plants were maintained in a screen house, and data on symptom severity and rate of disease development were recorded. ELISA test was conducted to confirm virus presence and distribution. The results indicate that the CABMVisolates used are systemic. There were various differences in disease progression, which was faster in the sweet passion variety than in the purple variety. However, the latter had a higher disease severity. Coinfected plants expressed severe symptoms compared to the singly infected ones, indicating synergistic interaction between the viral isolates. This implies that coinfection has adverse impact resulting in higher economic losses. SN - 2356-654X UR - https://doi.org/10.1155/2020/8876498 DO - 10.1155/2020/8876498 JF - Advances in Agriculture PB - Hindawi KW - ER -