In the basal state, 

GAPs inhibit RalA and Rab10 function by enhancing their rates of GTP hydrolysis

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#XL - R Botany

Bacterial Nod genes are activated to initiate nodulation in plants by plant signals flavonoids

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NodD proteins interact directly with the signals generated by the plants and activates most conserved Nod ABC genes in bacteria

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NodA is an N-acyltransferase that catalyzes the addition of a fatty acyl chain.

NodB is a chitin-oligosaccharide deacetylase that removes the acetyl group from the terminal nonreducing sugar.

NodC is a chitin-oligosaccharide synthase that links N-acetyl-D-glucosamine monomers.

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Nod factor is b-1,4-linked N-acetyl-D-glucosamine backbone

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Type III/Type IV secretion systems play a major role in transfer of bacterial Nod factor in plant cell. 

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#Id: 9279

#XL - R Botany

The binding of Nod factors to the Nod factor receptors (NFRs), which contain extracellular LysM motifs, initiates an interaction with the conserved SYMRK receptor-like kinases containing a leucine-rich repeat (LRR) domain.