Lower termites harbor diverse consortia of symbiotic gut flagellates. Despite numerous evidence for co-cladogenesis, the evolutionary history these associations remains unclear. Here, we present Retractinymphidae fam. nov., a monogeneric lineage Trichonymphida from Serritermitidae. Although Retractinympha glossotermitis gen. nov. sp. morphologically resembles members genus Pseudotrichonympha , ...

Cold shock-domain family proteins (Csps) are highly conserved nucleic acid binding proteins regulating the expression of various genes including those involved in stress resistance and virulence in bacteria. We show here that Csps are involved in virulence, cell aggregation and flagella-based extracellular motility of Listeria monocytogenes. A L. monocytogenes mutant deleted in all three csp ge...

Swarming motility, a flagellum-dependent behavior that allows bacteria to move over solid surfaces, has been implicated in biofilm formation and bacterial virulence. In this study, light and electron microscopic analyses and genetic and functional investigations have shown that at least 50% of Aeromonas isolates from the species most commonly associated with diarrheal illness produce lateral fl...

The locomotion of microorganisms and spermatozoa in complex viscoelastic fluids is critical importance many biological processes such as fertilization, infection, biofilm formation. Depending on their propulsion mechanisms, microswimmers display various responses to a fluid environment: increasing or decreasing swimming speed efficiency, modifying kinematics gaits, experiencing different hydrod...