Figure 7.

Effects of the NO scavenger cPTIO on nodulation. Nodule number of Medicago truncatula plants inoculated by IAA and control strain and treated with 1 mM cPTIO. Results are means ± SE (n = at least 12). cPTIO treatments are significantly different from respective controls, (P < 0.05). IAA: nodules produced by the S. meliloti IAA strain. Control: nodules produced by the S. meliloti control strain.