Previously, we reported that a LIM domain-binding protein, Ldb1, is necessary for vegetative growth, infection-related morphogenesis and pathogenicity of the rice blast fungus, however, we could not detect a direct interaction between Ldb1 and putative LIM proteins (Pax1, Lrg1, Rga1/Lrg2 and Ldp1) in yeast two-hybrid assays [41]. Here, PAX1 is linked to infection.