Metabolic changes of cucumber plants due to two CMV Egyptian isolates

الملخص EN

Cucumber production exposed to huge losses in Egypt and worldwide due to infection with Cu-cumber mosaic Cucumovirus (CMV).

The current study focus on the impact of two Egyptian CMV isolates on metabolic and oxidative activities in cucumber plants.

Two CMV isolates was obtained from cucurbitaceous crops and confirmed by DAS-ELISA.

Inoculated cucumber plants by infectious crude sap with two CMV isolates showed differ-ence in external symptoms.

The metabolic and biochemical components of cucumber plants were affected with two CMV isolates.

The present study provided that, CMV infection caused a significant reduction in both photopigments and biochemical components while bioactive components (proline and phenol) and oxidative enzymes (POX, SOD, PPO and CAT) were increased significantly com-pared healthy ones.

It was found that cucumber-CMV isolate was more effective in metabolic and biochemical than Squash-CMV isolate