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Media Contacts
![Researchers gained new insights into the mechanisms some methane-feeding bacteria called methanotrophs (pictured) use to break down the toxin methylmercury. Credit: Andy Sproles/ORNL, U.S. Dept. of Energy; Jeremy Semrau/Univ. of Michigan](/sites/default/files/styles/list_page_thumbnail/public/2021-09/OB3b_5Cu_5a01.jpg?h=535a555c&itok=FLOo_uRv)
A team led by ORNL and the University of Michigan have discovered that certain bacteria can steal an essential compound from other microbes to break down methane and toxic methylmercury in the environment.
![The Oak Ridge National Environmental Research Park encompasses a 20,000 acre area that includes Oak Ridge National Laboratory. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-09/2019-P16158_0.jpg?h=036a71b7&itok=_6tQ24p4)
Anyone familiar with ORNL knows it’s a hub for world-class science. The nearly 33,000-acre space surrounding the lab is less known, but also unique.
![As the leader of ORNL’s Biodiversity and Ecosystem Health Group, environmental scientist Teresa Mathews works to understand the impacts of energy generation on water and solve challenging problems, including mercury pollution. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-08/2021-P05311%5B10%5D%5B13%5D_0.jpg?h=f99713cc&itok=zd0wGqpx)
Moving to landlocked Tennessee isn’t an obvious choice for most scientists with new doctorate degrees in coastal oceanography.
![ORNL metabolic engineer Adam Guss develops genetic tools to modify microbes that can perform a range of processes needed to create sustainable biofuels and bioproducts. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-08/2021-P05224.jpg?h=8f9cfe54&itok=_5e3ckBD)
As a metabolic engineer at Oak Ridge National Laboratory, Adam Guss modifies microbes to perform the diverse processes needed to make sustainable biofuels and bioproducts.
![ORNL’s Josh Michener, a microbiologist and metabolic engineer, led the discovery of a useful new enzyme that breaks down stubborn bonds in lignin, a polymer found in plants that typically becomes waste during bioconversion. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-06/2019-P05683_0.jpg?h=4c5cadcc&itok=FSVdbEYP)
In a step toward increasing the cost-effectiveness of renewable biofuels and bioproducts, scientists at ORNL discovered a microbial enzyme that degrades tough-to-break bonds in lignin, a waste product of biorefineries.
![Researchers Adam Guss and Melissa Tumen-Velasquez work with microbes to understand how the organisms consume plastics and break them into chemical components that can be used to make higher-value products.](/sites/default/files/styles/list_page_thumbnail/public/2020-11/2020-P17629.jpg?h=98541007&itok=54ubVna4)
From soda bottles to car bumpers to piping, electronics, and packaging, plastics have become a ubiquitous part of our lives.
![Water from local creeks now flows through these simulated streams in the Aquatic Ecology Laboratory, providing new opportunities to study mercury pollution and advance solutions. Credit: ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2020-10/img_3692.jpg?h=77bd3ecb&itok=dM1eszup)
New capabilities and equipment recently installed at the Department of Energy’s Oak Ridge National Laboratory are bringing a creek right into the lab to advance understanding of mercury pollution and accelerate solutions.
![A new method uses E. coli to generate DNA with methylation patterns that target microbes recognize and accept as their own, facilitating customization of microbes for biofuels production.](/sites/default/files/styles/list_page_thumbnail/public/2019-09/bacteria_combinedwlabels1.png?h=f0ebf81d&itok=S-lziAuh)
Scientists at the US Department of Energy’s Oak Ridge National Laboratory have demonstrated a method to insert genes into a variety of microorganisms that previously would not accept foreign DNA, with the goal of creating custom microbes to break down plants for bioenergy.
![Alex Johs at ORNL's Spallation Neutron Source](/sites/default/files/styles/list_page_thumbnail/public/2019-06/2019-p01807.jpg?h=f8570409&itok=KBUOueeI)
Sometimes solutions to the biggest problems can be found in the smallest details. The work of biochemist Alex Johs at Oak Ridge National Laboratory bears this out, as he focuses on understanding protein structures and molecular interactions to resolve complex global problems like the spread of mercury pollution in waterways and the food supply.
![Kevin Robb, a staff scientist at the Department of Energy’s Oak Ridge National Laboratory, is taking what he learned from developing the Liquid Salt Test Loop—a key tool in deploying molten salt technology applications Kevin Robb, a staff scientist at the Department of Energy’s Oak Ridge National Laboratory, is taking what he learned from developing the Liquid Salt Test Loop—a key tool in deploying molten salt technology applications](/sites/default/files/styles/list_page_thumbnail/public/news/images/2017-P03818_1.jpg?itok=qQLLL9dH)
Thanks in large part to developing and operating a facility for testing molten salt reactor (MSR) technologies, nuclear experts at the Energy Department’s Oak Ridge National Laboratory (ORNL) are now tackling the next generation of another type of clean energy—concentrating ...