Barak, R., Department of Plant Pathology and Microbiology, The Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, 76100, Israel
Elad, Y., Department of Plant Pathology and Microbiology, The Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, 76100, Israel
Chet, I., Department of Plant Pathology and Microbiology, The Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, 76100, Israel

The adherence of Escherichia coli B cells to cell wall associated-agglutinin of the soil borne plant pathogen Rhizoctonia solani, was inhibited by l-fucose, l-galactose, trypsin, SDS, cycloheximide and Na2-EDTA. The coiling of the biocontrol agent Trichoderma harzianum around Rhizoctonia hyphae was prevented by SDS, cycloheximide, Na2-EDTA and methyl-α-l-fucoside - an inhibitor of Rhizoctonia agglutinin not metabolized by both fungi. The possible role of the agglutinin in Trichoderma-Rhizoctonia interaction is discussed. © 1986 Springer-Verlag.