Maize resistance to Sugarcane mosaic virus
R. Pokorný, M. Porubováhttps://doi.org/10.17221/10550-PPSCitation:Pokorný R., Porubová M. (2002): Maize resistance to Sugarcane mosaic virus. Plant Protect. Sci., 38: 542-544.
Under greenhouse conditions 12 maize hybrids derived from crosses of four resistant lines with several lines of different level of susceptibility were evaluated for resistance to Czech isolate of Sugarcane mosaic virus (SCMV). These hybrids were not fully resistant to isolate of SCMV, but the symptoms on their newly growing leaves usually developed 1 to 3 weeks later in comparison with particular susceptible line, the course of infection was significantly slower and rate of infection lower. As for mechanisms of resistance, the presence of SCMV was detected by ELISA in inoculated leaves both of resistant and susceptible lines, but virus was detected 7 days later in resistant line. Systemic infection developed only in susceptible lines. These results indicate restriction of viral long distance movement in the resistant line.Keywords:
Sugarcane mosaic virus; Zea mays L.; resistance; mechanisms