Assessing the cellulase accessibility of lignocellulosic substrate before and after pretreatment
Xianzhi Meng¹, Marcus Foston¹, Charles Wyman², Jaclyn DeMartini³ and Arthur Ragauskas¹, (1)School of Chemistry and Biochemistry, BioEnergy Science Center/Georgia Institute of Technology, Atlanta, GA, (2)Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, Riverside, CA, (3)Department of Chemical & Environmental Engineering, Center for Environmental Research and Technology, University of California, Riverside, Riverside, CA

Macromolecular modeling of cellulose microfibrils in deconstructed biomass from transmission electron tomography
Peter N. Ciesielski, James F. Matthews, Melvin P. Tucker, Michael F. Crowley, Micheal E. Himmel and Bryon S. Donohoe, Biosciences Center, National Renewable Energy Laboratory, Golden, CO

Comparative glycomics of plant biomass and insights into cell wall components that affect recalcitrance
Sivakumar Pattathil¹, Shishir P. S. Chundawat², Jaclyn DeMartini³, Hongja Li³, Jeffrey Miller¹, Virginia Brown¹, Sindhu Kandemkavil¹, Ajaya K. Biswal¹, Trina Saffold¹, Malcolm O'Neill¹, William S. York¹, Charles E. Wyman⁴, Debra Mohnen⁵, Richard A. Dixon⁶, F. Chen⁶, Bruce E. Dale⁷ and Michael Hahn¹, (1)Complex Carbohydrate Research Center, BioEnergy Science Center (BESC), University of Georgia, Athens, GA, (2)Biomass Conversion Research Laboratory, Deparment of Chemical Engineering and Materials Science, DOE Great Lakes Bioenergy Research Center, Michigan State University, Lansing, MI, (3)Department of Chemical & Environmental Engineering, Center for Environmental Research and Technology, BioEnergy Science Center, University of California, Riverside, Riverside, CA, (4)Center for Environmental Research and Technology and Chemical and Environmental Engineering Department, University of California Riverside, BioEnergy Science Center, Riverside, CA, (5)Biochemsitry and Molecular Biology, University of Georgia, Athens, GA, (6)Plant Biology Division, BioEnergy Science Center (BESC), Samuel Roberts Noble Foundation, Ardmore, OK, (7)Chemical Engineering and Materials Science, DOE Great Lakes Bioenergy Research Center, Michigan State University, Lansing, MI

Break/Exhibits open Napoleon Foyer, 3rd fl

Polysaccharide O-acetylation and wall recalcitrnace
Markus Pauly, Sascha Gille, Amancio de Souza and Guangyan Xiong, UC Berkeley / Energy Biosciences Institute, Berkeley, CA

Lignin and ABC transport modification to reduce recalcitrance
Angela Ziebell¹, Robert Sykes¹, Bryon Donohoe¹, Dayakar Badri², Fang Chen³, Richard A. Dixon³, Stephen R. Decker⁴, Jorge Vivanco² and Mark F. Davis¹, (1)National Bioenergy Center and BioEnergy Science Center, National Renewable Energy Laboratory, Golden, CO, (2)Horticulture, Colorado State University, Ft. Collins, CO, (3)Plant Biology Division, Samuel Roberts Noble Foundation, Ardmore, OK, (4)Biosciences Center and BioEnergy Science Center, National Renewable Energy Laboratory, Golden, CO

Varied recalcitrance in sugar cane hybrids with contrasting lignin contents
André Ferraz, Fernando Masarin, Thales HF Costa, Fernanda M. Mendes, Debora F. Laurito, Walter Carvalho and Adriane MF Milagres, Departamento de Biotecnologia, Escola de Engenharia de Lorena - USP, Lorena, Brazil