1 Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA; Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA.
2 Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA; Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA.
3 Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA.
4 Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA; The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, TN, 37996, USA.
5 Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA; Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA. Electronic address: gregg.beckham@nrel.gov.
6 Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA; Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA. Electronic address: michenerjk@ornl.gov.