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Two hybrid poplar plants, middle and right, engineered with the PtrXB38 hub gene exhibited a drastic increase in root and callus formation compared with a wild-type control plant, left. Credit: Tao Yao/ORNL, U.S. Dept. of Energy

Oak Ridge National Laboratory scientists identified a gene “hotspot” in the poplar tree that triggers dramatically increased root growth. The discovery supports development of better bioenergy crops and other plants that can thrive in difficult conditions while storing more carbon belowground.

Elizabeth Herndon uses spectroscopic techniques at ORNL to analyze the chemical composition of leaves and other environmental samples to better understand the soil carbon cycle. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy

ORNL biogeochemist Elizabeth Herndon is working with colleagues to investigate a piece of the puzzle that has received little attention thus far: the role of manganese in the carbon cycle.

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While studying the genes in poplar trees that control callus formation, scientists at Oak Ridge National Laboratory have uncovered genetic networks at the root of tumor formation in several human cancers.

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For decades, biologists have believed a key enzyme in plants had one function—produce amino acids, which are vital to plant survival and also essential to human diets. But for Wellington Muchero, Meng Xie and their colleagues, this enzyme does more than advertised. They had run a series of experiments on poplar plants that consistently revealed mutations in a structure of the life-sustaining enzyme that was not previously known to exist.

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A new process to identify certain microbes in women could be used to diagnose endometriosis without invasive surgery, even before symptoms start. A collaborative research team including Oak Ridge National Laboratory analyzed bacteria from a small sample of premenopausal women undergoing laparoscopic surgery for suspected endometriosis.
Brian Davison

Brian Davison, a researcher at the Department of Energy's Oak Ridge National Laboratory, has been awarded a 2017 fellowship by the Society for Industrial Microbiology and Biotechnology (SIMB).

GWAS SNP Populus trees under study

Researchers at the Department of Energy’s Oak Ridge National Laboratory (ORNL) have released the largest-ever single nucleotide polymorphism (SNP) dataset of genetic variations in poplar trees, information useful to plant scientists

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GreenWood Resources has licensed an Oak Ridge National Laboratory technology based on the discovery of a gene in poplar (Populus trichocarpa) that makes it easier to convert poplar trees into biofuels. GreenWood, a global timberland investment and asset m...

An artist’s rendering of the five protein structures solved using neutrons shown on top of the MaNDi instrument detectors. Image credit - ORNL/DOE
Plants and other biomass can be converted into a variety of renewable high-value products including carbon fibers, plastics, and liquid fuels such as ethanol and biodiesel that are beneficial for reducing petroleum use and vehicle emissions. Breaking down plants in order to release...
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Biofuels pioneer Mascoma LLC and the Department of Energy's BioEnergy Science Center have developed a revolutionary strain of yeast that could help significantly accelerate the development of biofuels from nonfood plant matter.