Rhizopus spp Promoting and Inducing Late Blight (Phytophthora infestans) Resistance in Solanum lycopersicum L.

Tomato (Solanum lycopersicum L) which is highly consumed by humans, suffer severe attacks of various pathogens. Among these pathogens, Phytophthora infestans the most prominent causing a devastating tomato disease called late blight. This study was aimed at evaluating protective effects Rhizopus spp on plant growth upon infection with P. infestans. The work partition into two phases: phase 1 delt effect parameters while 2 against blight in and its attributes biochemical parameters. In seedlings were raised divided five groups six plants each. Group I control Groups II to V treated (2.5; 5.0; 7.5 10.0 mg/ml respectively) for 25 days. After every 5 days’ each day treatment, (number leaves height) chlorophyll contents measured. On 25, samples collected analysis (flavonoids, phenolic content, total protein, vitamin C, catalase (CAT), reduced glutathione (GSH)). 2, obtained as best results one used. Raised four groups: healthy (H), infected (50 mg/ml) (I), 3 stimulated (5.0 (St), 4 inoculated after stimulation (St + I) 7days. Every days, diseases incidence severity recorded 10th days (total CAT GSH) analysis. As results, inoculation induced an increase number leaves, height compared group (Rhizopus 5.0 having result. A significant (p< 0.05) flavonoid, level activity recorded. Another pathogen when control. Co-inoculation significantly decreased severity. Also decrease GSH noticed. increased group. conclusion instigate induce resistance