Figure 4From: The tep1 gene of Sinorhizobium meliloti coding for a putative transmembrane efflux protein and N-acetyl glucosamine affect nod gene expression and nodulation of alfalfa plantsNodulation efficiency upon addition of different concentrations of Nod factor precursors. Just before inoculation with S. meliloti GR4, alfalfa plants were supplemented with 50 μM glucosamine (GA) (open squares), 5 mM glucosamine (filled squares), 50 μM N-acetyl glucosamine (NAGA) (open triangles), 5 mM N-acetyl glucosamine (closed triangles) or without the addition of Nod factor precursors (filled circles). A representative example from 3 independent experiments is shown.Back to article page