Decoy Molecules Trick Bacteria to Degrade Pollutants
Why it matters: This method offers a new way to clean up soil contaminated with persistent pollutants like dioxins without using genetically engineered organisms.
- Nagoya University researchers demonstrated that decoy molecules can induce native soil bacteria to degrade persistent pollutants such as dioxins, effectively giving them new capabilities without genetic modification.
- Professor Osami Shoji and his team utilized decoy molecules that mimic fatty acids to bind to cytochrome P450 enzymes, creating a confined space that allows pollutants to enter and undergo hydroxylation.
- Cytochrome P450BM3, derived from Priestia megaterium, naturally hydroxylates fatty acids but, when combined with specific decoy molecules, was shown to hydroxylate benzene in particular strain-decoy combinations.
Nagoya University researchers have developed a novel method using decoy molecules to enable native soil bacteria to degrade persistent pollutants like dioxins and benzene, circumventing the need for genetic engineering. This approach tricks naturally occurring enzymes, specifically cytochrome P450, into breaking down non-native toxic compounds by creating a confined reaction space without altering the bacteria's genetic makeup.
