Sodium alginate potentiates antioxidant defense and PR proteins against early blight disease caused by Alternaria solani in Solanum lycopersicum Linn.
Fig 2
Fluorescence microscopy analysis of A. solani colonization within tomato leaves on day 8.
A: Untreated control leaves; B: Untreated S. lycopersicum leaves inoculated with A. solani; C: S. lycopersicum leaves pretreated with 0.2% sodium alginate; D: S. lycopersicum leaves pretreated with 0.2% sodium alginate and inoculated with A. solani; E: S. lycopersicum leaves pretreated with 0.4% sodium alginate; F: S. lycopersicum leaves pretreated with 0.4% sodium alginate and inoculated with A. solani; G: S. lycopersicum leaves pretreated with 0.6% sodium alginate; H: S. lycopersicum leaves pretreated with 0.6% sodium alginate and inoculated with A. solani. cd: Cell death.