How is the bacterium

Most bacterial species do not have eyes or nose, but how can they hunt?

The team of scientists at the University of Utah (USA) led by Professor John Parkinson said that although there are no functions mentioned above, the species of bacteria can still smell food thanks to the centralized sensors. one head body.

This structure allows them to orient the food source to move purposefully.

This expert group stated that the dense arrangement of sensors creates a sensitive ' nose ' many times, helping bacteria to sniff out food far away. For example, when observing E.coli (which causes intestinal diseases - photos), the scientists found that they had extremely sensitive receptors densely concentrated at one end of the bacterium.

This system helps it identify food amino acids quickly. In another experiment, scientists used transgenic methods to produce dense E.coli bacteria three times normal. As a result, they can sniff out food sources twice as wide as other bacteria.

NGUYEN SINH