مرکز منطقه ای اطلاع رساني علوم و فناوري - Interactions between beet necrotic yellow vein virus and beet soilborne virus in different sugar beet cultivars

Abstract :

In the present study, non-infested soil, naturally infested soils of aviruliferous Polymyxa betae and viruliferous P. betae carrying Beet necrotic yellow vein virus (BNYVV) and Beet soilborne virus (BSBV) were obtained from sugar beet fields during surveys in central and northern parts of Turkey in 2005. These soils, alone and in combination were compared to non-infested soil for their effects on plant fresh weight and virus content by using partially resistant (cv. Leila) and susceptible (cv. Arosa) varieties to the rhizomania disease (caused by BNYVV). Soils infested with P. betae, carrying one and both viruses, showed significantly reduced fresh weight of seedlings, and aviruliferous P. betae significantly decreased sugar beet growth. Partially resistant cultivar to rhizomania did not show resistance to BSBV in single infection under controlled room conditions. However, ELISA result for BSBV in mixed infection was negative in the partially resistant cultivar to rhizomania. Also, the ELISA absorbance value of BNYVV in the susceptible cultivar to rhizomania was found to be lower in mixed infection than in single infection.