Lightfoot DA, Baron AJ, Wootton JC(1988).“Expression of the Escherichia coli glutamate dehydrogenase gene in the cyanobacterium Synechococcus PCC6301 causes ammonium tolerance”.Plant Molecular Biology11(3): 335-344.doi:10.1007/BF00027390.
Lightfoot DA, Bernhardt K, Mungur R, Nolte S, Ameziane R, Colter A, Jones K, Iqbal MJ, Varsa E, Young B(2007).“Improved drought tolerance of transgenic Zea mays plants that express the glutamate dehydrogenase gene (gdhA) of E. coli”.Euphytica156(1-2): 103-116.doi:10.1007/s10681-007-9357-y.