Local and Systemic Responses of Antioxidants to Cucumber Mosaic Virus Infection in Pepper Plants

ABSTRACT

Two lines (Okal and L57) of Capsicum annuum with different susceptibility to Cucumber mosaic virus (CMV) and influence of pathogenesis on peroxidase and catalase activities, carotenoid content and symptom appearance were investigated. Visible chlorotic spots on inoculated leaves of resistant line 57 appeared approximately 17d after CMV infection. The inoculated leaves of susceptible line Okal were symptomless. The increase of carotenoid content in Okal was observed. A relationship between changes of peroxidase and catalase activity in infected plants and their degree of susceptibility to CMV is evidence.

Keyword:

• Capsicum annuum
• CMV
• catalase
• carotenoid
• resistance
• peroxidase