PROBLEM TO BE SOLVED: To provide new means for pest-controlling a plant pathogen.SOLUTION: There is provided a plant pathogen resistance enhancer containing protein which recognizes and binds a polysaccharide binding site of protein expressed by a plant pathogen or the like, or polynucleotide which codes the protein as an active ingredient.EFFECT: Because the protein of the present invention recognizes and binds a polysaccharide binding site of protein derived from a plant pathogen, and can suppress its function, the protein can be used as a plant pathogen resistance enhancer. Further, a gene which codes the protein of the present invention is introduced into a plant, and a transgenic plant which expresses polysaccharide binding site recognition protein at a high level can be created. Further, there is also provided a recovery method of protein having a polysaccharide binding site by using the function of the protein of the present invention.SELECTED DRAWING: None
