Figure 3.

Scanning Electron Micrographs of Leaves from PVX-Infected Plants.

(A) A PVX control leaf, showing the relatively smooth epidermal surface and trichomes of the adaxial leaf surface. Numerous airspaces in the spongy and palisade mesophyll are visible in the cross-section of the leaf.

(B) A leaf section from a PVX–NtCesA-1b plant, showing the abaxial surface distortions and cells ballooning out from the epidermis. Swollen cells can also be observed on trichomes. The mesophyll appears to have much smaller airspaces.

(C) and (D) Abaxial surface views of PVX control and PVX–NtCesA-1b leaves, respectively.

(E) and (F) Higher magnification views of PVX control and PVX–NtCesA-1b leaves, respectively.

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