By Kristen E. Strubberg Editor-in-Chief
Oil spills, industrial waste…..such environmental disasters may now have an environmental answer. Scientists have mapped the enzymatic process by which organisms found far underground and underwater digest these toxic substances.
Organohalides, their environmental “nasty” of choice is broken-down by a special enzyme that detaches the toxic halide molecule from the hydro-carbons. It’s called a reductive halogenase and organisms with the enzyme have already been relied on – in their natural habitat – to assist in clean-ups such as the 2010 Deepwater Horizon Spill. During that atrocity, they used 830,00 gallons of dispersant so the microbes could more easily tackle the spilled oil. However widespread application of the hydro-carbon loving organisms has been limited due to bacteria’s slow reproduction rate in lab conditions. Now, according to the journal Nature, that hurdle may be crossed. With the discovery of the reductive halogenase mechanism researches realized that vitamin B12 is necessary for catalysis. Knowing this important factor they can introduce the enzyme into other bacteria that are faster growing. Large quantities of oil-eating microbes may soon be ready for cleaning up our messes.
To date, the oil-eating organisms have not been employed at the recent pipeline rupture off the California coast. Maybe now they will.
For more information see The Smithsonian Magazine.