A New Bacterial Agglutinin from Soybean: II. EVIDENCE AGAINST A ROLE IN DETERMINING PATHOGEN SPECIFICITY

The activity of a bacterial agglutinin from soybean seed Glycine max (L.) Merrill cv. Clark] against two bacterial pathogens, Pseudomonas glycinea (causal agent of bacterial blight) and Xanthomonas phaseoli var. sojensis (causal agent of bacterial pustule) was determined. The agglutinin was active against several strains of X. phaseoli var. sojensis grown on nutrient agar, but there was no correlation between pathogenicity and agglutination. Agglutination was affected by the age of the bacterial cells and the growth medium used. None of seven strains of P. glycinea was agglutinated.