GmPBS1, a Hub Gene Interacting with Rhizobial Type-III Effectors NopT and NopP, Regulates Soybean Nodulation

Rhizobial Nodulation Genes nodIJ

Although many aand some b-proteobacterial species are symbiotic with legumes, the evolutionary origin of nitrogenfixing nodulation remains unclear. We examined aand b-proteobacteria whose genomes were sequenced using largescale phylogenetic profiling and revealed the evolutionary origin of two nodulation genes. These genes, nodI and nodJ (nodIJ), play key roles in the secretion of Nod factors, ...

Hijacking of leguminous nodulation signaling by the rhizobial type III secretion system.

Root-nodule symbiosis between leguminous plants and nitrogen-fixing bacteria (rhizobia) involves molecular communication between the two partners. Key components for the establishment of symbiosis are rhizobium-derived lipochitooligosaccharides (Nod factors; NFs) and their leguminous receptors (NFRs) that initiate nodule development and bacterial entry. Here we demonstrate that the soybean micr...

Pseudomonas type-III effectors

Non-rhizobial nodulation in legumes

Legume Rhizobium associations are undoubtedly form the most important N2-fixing symbiosis and play a subtle role in contributing nitrogen and maintaining/improving soil fertility. A great diversity in the rhizobial species nodulating legumes has been recognized, which belongs to α subgroup of proteobacteria covering the genera, Rhizobium, Sinorhizobium (renamed as Ensifer), Mesorhizobium, Brady...

Type III effectors in action

The way proteins are translocated across the peroxisomal membrane is poorly understood. Though the existence of transient pores in the membrane had been proposed, their identification had remained elusive until now. In a new study, Erdmann and colleagues tagged peroxisomal matrix protein receptor Pex5p and isolated three Pex5p-containing complexes from yeast peroxisomal membranes. These three c...