Fig. 11.

Effect of leaf necrosis and chlorosis on background fluorescence. Leaves from wild-type arabidopsis were photographed with white light (A), with the filter cube containing a yellow barrier filter (Canon EOS 30D camera, 1.0 s exposure, ISO 400, f/8.0, intensity of ∼8000 lx) (B) and the filter cube containing yellow and cyan barrier filters (same photographic conditions as B) (C). Leaves 1 and 2 were controls; leaves 3 and 5 were necrotic; leaf 4 was chlorotic; and leaf 6 was necrotic on the tip and chlorotic in the middle region. The size bar is 1 cm.