Click on image to view larger version.
Fig. 2. Threshold temperature for the expression switch between stem-tip necrosis and mosaic symptoms in soybean genotypes inoculated with two Soybean mosaic virus strains. (a) Soybean genotype V262 (Rsv1-n) at 32°C 7 days after inoculation (DAI); 1 = healthy plants, 2 = plants inoculated with G1. (b) Soybean genotype V94-3971 (Rsv1) at 32°C 7 DAI; 1 = healthy plants, 2 = plants inoculated with G7. (c) Soybean genotype V262 (Rsv1-n) at 33°C 12 DAI; 1 = healthy plants, 2 = plants inoculated with G1. (d) Soybean genotype V94-3971 (Rsv1) at 33°C 12 DAI; 1 = healthy plants, 2 = plants inoculated with G7. (e) V262 (Rsv1-n) at 33°C 12 DAI; 1 = leaf from healthy plant, 2 = leaf from plant inoculated with G1 expressing mosaic symptom. (f) V94-3971 (Rsv1) at 33°C 12 DAI; 1 = leaf from healthy plant, 2 = leaf from plant inoculated with G7 expressing mosaic symptom.
