Fig 5.

Average percentage polarization of light reflected from the adaxial and abaxial surfaces of TVCV (A) or CMV (B) infected A. thaliana leaves, in comparison to healthy controls, in the blue and green channels. Error bars denote 95% confidence intervals; asterisks indicate statistically significant differences between healthy and infected leaves (** P<0.01). A total of 33 TVCV-infected leaves and 24 CMV-infected leaves (from separate plants) were analysed and compared to similar numbers of healthy leaves. All imaging experiments were performed at 21 DPI on systemically infected rosette leaves.