Efforts toward optimization of aerobic biohydrogen reveal details of secondary regulation of biological nitrogen fixation by nitrogenous compounds in Azotobacter vinelandii
1.Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN, 55108-6130, USA ;2.Biotechnology Institute, University of Minnesota, St. Paul, MN, 55108, USA ;