Topic: Biology

Researchers at Arizona State University found that bacteria can move across surfaces without their usual propulsion system. This new way of movement is called 'swashing' and it's driven by the bacteria's metabolism.

Scientists have long known that bacteria move using flagella, whip-like structures that spin to push the cells forward. However, a new study from Arizona State University shows that bacteria can still spread across surfaces even when their flagella are disabled. This movement is called 'swashing' and it's driven by the bacteria's metabolism.

The researchers found that when bacteria ferment sugars, they create tiny outward flowing currents across the wet surface. These flows slowly push the bacterial colony outward, similar to leaves drifting along a thin stream.

This discovery could help explain how disease-causing microbes manage to colonize medical devices, wounds, and food processing equipment. By understanding how bacterial metabolism drives this type of motion, scientists may be able to slow or stop it by altering environmental conditions such as pH or sugar levels.

The study was conducted by researcher Navish Wadhwa and his team at the Biodesign Center for Mechanisms of Evolution and the Department of Physics at ASU. The findings were published in the Journal of Bacteriology and selected as an Editor's Pick, highlighting its significance.

Why It Matters

This discovery is important because it could help prevent infections by understanding how bacteria spread across surfaces. In India, this knowledge could be used to improve sanitation strategies in food processing facilities and hospitals.

Key Facts

• Bacteria can move across surfaces without their usual propulsion system, a process called 'swashing'.
• Swashing is driven by the bacteria's metabolism, specifically the fermentation of sugars.
• The study was conducted by researcher Navish Wadhwa and his team at Arizona State University.
• The findings were published in the Journal of Bacteriology and selected as an Editor's Pick.

Key Terms

Flagella

Whip-like structures that spin to push bacteria forward

Implications

This discovery is important because it could help prevent infections by understanding how bacteria spread across surfaces. In India, this knowledge could be used to improve sanitation strategies in food processing facilities and hospitals.