Citation
Receptor Sensitivity in Bacterial Chemotaxis
TL;DR
E. coli measures concentration changes over ~1-second runs
This foundational research on E. coli chemotaxis demonstrates how bacteria navigate using remarkably limited information. The run-and-tumble mechanism - measuring concentration changes over ~1-second runs spanning ~20 micrometers - shows how organisms make effective decisions through temporal comparison rather than spatial sensing.
For business leaders, this research reveals that perfect information isn't required for effective navigation. Like E. coli, organizations can thrive by comparing 'now' to 'just now' and adjusting accordingly. The key is tight feedback loops, not comprehensive data.
Key Findings from Sourjik & Berg (2002)
- E. coli measures concentration changes over ~1-second runs
- Bacteria use temporal comparison (now vs. moment ago) rather than spatial sensing
- Run-and-tumble mechanism creates biased random walk toward attractants
- Effective navigation possible with extremely limited sensory information