Nodule morphogenesis

Oldroyd GED, Downie JA. 2008. Coordinating nodule morphogenesis with rhizobial infection in legumes. Annu Rev Plant Biol 59 519-546. 

Successful infection proceeds simultaneously with nodule morphogenesis triggered by the signal compounds produced by Rhizobium in response to its host, and leads to the release of bacteria from the infection threads into the cortical cells. Concomitantly, the bacteria are enveloped in a host-derived plasma membrane called the peribacteroid membrane (PBM) (Verma et al., 1978 Robertson et al., 1978). Both host- and bacterium-derived proteins are specifically targeted to this membrane (Fortin et al., 1985, 1987 Katinakis Verma, 1985 Katinakis et al., 1988), making it a unique subcellular compartment. 

J. Denarie, F. Debellc, and J.-C. Prome, Rhizobium lipo-ehitooligosaccharide nodulation factors signaling molecules mediating recognition and morphogenesis, Annu. Rev. Biochem. 65 503 (1996). 

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