الكشف عن الفيروسات التي تصيب محصول البطاطا في المنطقة الجنوبية من ريف دمشق (سورية)‎

الملخص EN

A field survey was conducted in 6 potato growing regions in Rural Damascus Province during 2012 / 2013.

98 Collected morphologically infected samples were examined depending on serological tests (ELISA) using Potato leaf roll virus (Polerovirus: Luteoviridae, PLRV), Potato virus Y (Potyvirus: Potyviridae,PVY), Potato virus X (Potexvirus: Alfaflexiviridae,PVX),Potato virus S (Carlavirus: Betaflexiviridae, PVS), Potato virus A (Potyvirus, Potyviridae, PVA) and Potato virus M (Carlavirus: Betaflexiviridae, PVM) antisera.

The infection percentage was 81.6%, whereas 18 samples didn’t give any reaction toward these antisera.

Viral disease percentage was high in Zakia, Beat-Saber and Keswa (92.9%), whereas, Sa’sa’ had the lowest viral percentage (64.2%).

PVY (63.3%), PVX (34.7%) and PLRV (20.4%) were the most prevalent viruses in almost all potato samples, while PVA, PVS and PVM weren’t prevalent.

Almost all samples were infected via complex infection with more than one virus.

Moreover, mixed virus infections were observed in some of collected samples.

Viral infection occurrence may be due to the use of non-certified potato seeds, so, extra surveys are recommended, working on antisera produced from local viral strains and improve of viral detection methods.