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The extended mobility of plasmids

  • cyrilrenassia
  • Jul 22
  • 1 min read

Nucleic Acid Research


Maria Pilar Garcillán-Barcia, Fernando de la Cruz, Eduardo P C Rocha


Summary


Plasmids play key roles in the spreading of many traits, ranging from antibiotic resistance to varied secondary metabolism, from virulence to mutualistic interactions, and from defense to antidefense. Our understanding of plasmid mobility has progressed extensively in the last few decades. Conjugative plasmids are still often the textbook image of plasmids, yet they are now known to represent a minority. Many plasmids are mobilized by other mobile genetic elements, some are mobilized as phages, and others use atypical mechanisms of transfer. This review focuses on recent advances in our understanding of plasmid mobility, from the molecular mechanisms allowing transfer and evolutionary changes of plasmids to the ecological determinants of their spread. In this emerging, extended view of plasmid mobility, interactions between mobile genetic elements, whether involving exploitation, competition, or elimination, affect plasmid transfer and stability. Likewise, interactions between multiple cells and their plasmids shape the latter patterns of transfer through transfer-mediated bacterial predation, interference, or eavesdropping in cell communication, and by deploying defense and antidefense activity. All these processes are relevant for microbiome intervention strategies, from plasmid containment in clinical settings to harnessing plasmids in ecological or industrial interventions.


More information at DOI: https://doi.org/10.1093/nar/gkaf652

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