1. Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824
2. Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan 48824
3. The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, The University of Edinburgh, The King’s Buildings, Edinburgh EH9 3BF, United Kingdom
4. Øster Søgade 36, 1357 Copenhagen, Denmark
5. MSU-DOE Plant Research Lab, Michigan State University, East Lansing, Michigan 48824
6. Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824