@article{10902/36119, year = {2020}, url = {https://hdl.handle.net/10902/36119}, abstract = {Small non-coding RNAs (sRNAs) are ubiquitous components of bacterial adaptive regulatory networks underlying stress responses and chronic intracellular infection of eukaryotic hosts. Thus, sRNA-mediated regulation of gene expression is expected to play a major role in the establishment of mutualistic root nodule endosymbiosis between nitrogen-fixing rhizobia and legume plants. However, knowledge about this level of genetic regulation in this group of plant-interacting bacteria is still rather scarce. Here, we review insights into the rhizobial non-coding transcriptome and sRNA-mediated post-transcriptional regulation of symbiotic relevant traits such as nutrient uptake, cell cycle, quorum sensing, or nodule development. We provide details about the transcriptional control and protein-assisted activity mechanisms of the functionally characterized sRNAs involved in these processes. Finally, we discuss the forthcoming research on riboregulation in legume symbionts.}, organization = {Funding: This research was funded by the Spanish Ministerio de Ciencia, Innovación y Universidades, ERDF co-financed grants BFU2013-48282-C2-2-P and BFU2017-82645-P to J.I.J.-Z.}, publisher = {MDPI}, publisher = {Microorganisms, 2020, 8(3), 384}, title = {Riboregulation in nitrogen-fixing endosymbiotic bacteria}, author = {Robledo Garrido, Marta and García Tomsig, Natalia I. and Jiménez Zurdo, José I.}, }