Table S1. Symptomsz induced by the Citrus psorosis virus (CPsV) isolate PB-143 in different species, cultivar or hybrids of Citrus and related genera and relative accumulation of CPsV as detected by ELISA.
z Symptoms observed in most plants (other symptoms like necrotic etching, leaf deformation, secondary shocks or dwarfing were observed only in some plants). Intensity index for each symptom was evaluated from 0 to 3: 0= absence of symptoms; 1= mild symptoms in ≤25% of the leaves; 2= moderate symptoms in up to 50% of the leaves; 3= moderate to severe symptoms throughout the whole plant; n.e= not evaluated.
y The pathogenicity index was calculated using the formula: PI= [(3xS) + (FxI) + B + (2xBFxI) + (3xNExI) + (3xPB)]/2x100, where S is the number of plants showing shock reaction in the first flush, F is the number of plants with chlorotic flecking in young leaves, B, is the number of plants with chlorotic blotching in young leaves, BF is the number of plants with chlorotic blotching in fully expanded leaves, NE is the number of plants with necrotic etching in fully expanded leaves, PB is the number of plants with PsB lesions in old leaves, and I is the intensity index estimated for each symptom.
x Samples with ELISA readings more than three times the mean value of the healthy control were considered positive and used to calculate the mean values in the table. The mean negative control values for each plate were subtracted from each experimental ELISA value and from the mean positive control value. These adjusted experimental values were expressed as a ratio with the adjusted mean positive control value ± standard deviation.