I’ve spoke a lot lately about bacterial chemotaxis. I wanted to give you a taste of the real deal. These cells are happily navigating the medium with many swimming in circles, a phenotype of Azospirillum brasilense cells prior to cell aggregation (grouped cells).
- Bacterial aerotaxis in an oxygen gradient animated GIF. Enjoy! (mhrussel.wordpress.com)
- MyTH: Week 2 bacteria focus organism: Azospirillum brasilense (mhrussel.wordpress.com)
- How do bacteria make decisions? Part 2 (mhrussel.wordpress.com)
Qi, X. et al. Swimming motility plays a key role in the stochastic dynamics of cell clumping. (2013) Physical Biology 10: 026005. Link
Bible, AN., Russell, MH., Alexandre, G. The Azospirillum brasilense Che1 chemotaxis pathway controls swimming velocity, which affects transient cell-to-cell clumping. (2012) Journal of Bacteriology 194: 3343. Link