Legume root nodules are the product of a nitrogen-fixing symbiosis involv ing bacteria of
three genera, Rhizobium, Bradyrhizobium, and Azorhi zobium, collectively termed rhizobia …

Bacterial infection of interior tissues of legume root nodules is controlled at the epidermal
cell layer and is closely coordinated with progressing organ development. Using …

Under nitrogen limitation, Rhizobium meliloti Nod factors induce cell divisions in the inner
cortex of alfalfa roots in a still unknown way. These cell division clusters subsequently …

Nodulation of legume roots typically begins with rhizobia attaching to the tip of a growing
root-hair cell. The attached rhizobia secrete Nod factors (NF), which are perceived by the …

As the legume-rhizobia symbiosis is established, the plant recognizes bacterial-signaling
molecules, Nod factors (NFs), and initiates transcriptional and developmental changes …

Legumes are important food sources and therefore, the nitrogen fixing ability of legume–
rhizobia symbioses have great potential to improve crop yields and/or reduce the use of …

Mechanisms regulating legume root nodule development are still poorly understood, and
very few regulatory genes have been cloned and characterized. Here, we describe EFD (for …

Nitrogen-fixing nodules on plants such as alfalfa, pea and vetch arise from the root inner
cortex and grow via a persistent meristem. Thus, these nodules are defined as …

Legumes form a mutualistic symbiosis with bacteria collectively referred to as rhizobia. The
bacteria induce the formation of nodules on the roots of the appropriate host plant, and this …

The legume-rhizobia symbiosis is estimated to fix per annum as much nitrogen as the
fertilizer industry and is of great agronomic and ecological importance. This efficient nitrogen …