The study shows that in liquid environments, where bacteria rely on movement to navigate, the rotation of flagella acts as a mechanical signal that turns on a set of genes required for DNA transfer.

Among the various mechanosensors of interest to the team, one is located in the slender appendages known as flagella, which power bacterial swimming. One of the group's objectives is to determine ...

1. Mena KD, Gerba CP. Risk Assessment of Pseudomonas aeruginosa in Water. Reviews of Environmental Contamination and Toxicology, Vol 201 2009;201:71-115. doi:10.1007 ...

fischeri, further studies revealed its involvement in the regulation of virulence-related gene transcription of pathogenic bacteria, such as the production of proteases in Pseudomonas aeruginosa ...

Thus, in the present study, we aimed to generate a new class of therapeutics based on a recombinant single-domain antibody (sdAb) immunotoxin derived from the PE38 Pseudomonas aeruginosa exotoxin A.

Each of the underlying single-celled parasites — Trypanosoma brucei and its relatives — has one flagellum, a whiplike appendage that is essential for moving, infecting hosts and surviving in different ...

Previous studies had examined sperm movement near surfaces, but this is the first time scientists have visualized both the flagellum’s motion and the full 3D flow field surrounding the cell.

When viewed under the microscope, sperm appear as oval-shaped cells with long tails (flagellum) that enable movement. Healthy sperm are those whose size and shape are relatively consistent and have ...