Figure 8.

Hydrogen peroxide and callose accumulation in the Gbvdr6 over-expressed cotton and WT plant in response to V. dahliae. Roots from the transgenic and the WT at 5 days post-inoculation with V. dahliae were stained with 3,3′-diaminobenzidinetetrahydrochloride (DAB), and photos were taken under a fluorescence microscope with bright light. Scale bar = 100 μm (upper). Callose accumulation (lower). Roots from the transgenic and the WT at 5 days post-inoculation with V. dahliae were stained with aniline blue, and photos were taken under a fluorescence microscope with UV light. Scale bar = 100 μm.