How Legumes Select Their Sweet Talking Symbionts

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Science  24 Oct 2003:
Vol. 302, Issue 5645, pp. 575-578
DOI: 10.1126/science.1091269

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Legumes form a symbiotic relationship with rhizobial bacteria, which live in root nodules and fix nitrogen to form ammonia. A key event in the initiation of this symbiotic relationship is the release of Nod factor signals by bacteria. In his Perspective, Cullimore and Dénarié discuss new work published here ( Limpens et al.) and elsewhere that identifies the plant receptors recognizing Nod factors.