December 30, 2010
Davison Awarded ORNL Science Communicator of the Year
UT-Battelle has given the Science Communicator Award for 2010 to Brian H. Davison, Ph.D. "For his outstanding efforts in communicating the science of biofuels research—both to scientific audiences and to the public"
October 22, 2010
Phylogenetic, Microbiological, and Glycoside Hydrolase Diversities within the Extremely Thermophilic, Plant Biomass-Degrading Genus Caldicellulosiruptor
Preliminary genome sequencing data highlighted diverse glycoside hydrolase (GH) inventories. Each Caldicellulosiruptor species is capable of deconstructing lignocellulosic biomass in unique and complementary manner.
October 22, 2010
Multiple Members of the Genera Caldicellulosiruptor are Now Sequenced
Extremely thermophilic, gram+ bacteria capable of fermenting cellulose.
October 01, 2010
Mutation of Key TF Increases Pith Cell Wall Thickness
The discovery of negative regulators of secondary wall formation in pith opens up the possibility of significantly increasing the mass of fermentable cell wall components in bioenergy crops.
June 29, 2010
BESC and Harvard Scientists Report Label-Free, Real-Time Coherent Raman Scattering Microscopy for Chemical Imaging of Biomass
Coherent Raman Scattering (CRS) Microscopy has been developed and applied for biomass imaging at NREL in collaboration with Harvard University, and this unique tool is powerful in imaging complex biological systems in situ, specifically in identifying recalcitrant features evolving in biomass with reference to their processing to biofuels.
June 01, 2010
UTK-ORNL Scientists Report the Identification of Bacterial Signal Transduction Networks from Sequence Information
Probes the origins of bacterial chemotactic (navigation) response as they developed from simple signal transduction systems that control transcription. This study has revealed more than a dozen of versions of this navigation system and assigned hundreds of bacterial species to each of them.
April 01, 2010
Gene Discovery is a Step to Cost-Competitive Cellulosic Biofuel
Overexpression of a sodium-proton antiporter gene (nhaA) identified at ORNL confers enhanced tolerance of acetate salts (a potential inhibitor of biofuels production) in multiple microorganisms that can be employed for biofuel production, thus moving cellulosic biofuel closer to commercial viability.
April 01, 2010
A Paradigm for Strain Improvement Breaks Down Barriers for Biofuel Production
The application of classical and systems biology tools is a paradigm for industrial strain improvement. Evolved acetate resistance Z. mobilis strains resequenced. Identification and overexpression of Na+/H+ antiporter genes confers enhanced tolerance to acetate salts in yeast and Z. mobilis.
January 11, 2010
Surface Chemistry of Pretreated Poplar Changes Measured by ToF-SIMS
The relative content of xylan after DAP increased by 30% on the surface, while the relative concentration of xylose by bulk carbohydrate analysis decreased 10-fold in comparison with untreated poplar wood.
January 01, 2010
Small Scale and Automatable Compositional Analysis of Biomass
Method is based on NREL wet chemistry procedure at 1/100x. Downscaled method produces statistically identical carbohydrate results to conventional wet chemistry procedures.