William A. Jackson Feng, J. N., Volk, R. J., & Jackson, W. A. (1998). Source and magnitude of ammonium generation in maize roots. PLANT PHYSIOLOGY, 118(3), 835–841. https://doi.org/10.1104/pp.118.3.835 JACKSON, W. A., & VOLK, R. J. (1995). ATTRIBUTES OF THE NITROGEN UPTAKE SYSTEMS OF MAIZE (ZEA-MAYS L) - MAXIMAL SUPPRESSION BY EXPOSURE TO BOTH NITRATE AND AMMONIUM. NEW PHYTOLOGIST, 130(3), 327–335. https://doi.org/10.1111/j.1469-8137.1995.tb01827.x JACKSON, W. A., CHAILLOU, S., MOROTGAUDRY, J. F., & VOLK, R. J. (1993). ENDOGENOUS AMMONIUM GENERATION IN MAIZE ROOTS AND ITS RELATIONSHIP TO OTHER AMMONIUM FLUXES. JOURNAL OF EXPERIMENTAL BOTANY, 44(261), 731–739. https://doi.org/10.1093/jxb/44.4.731 JACKSON, W. A., KWIK, K. D., & VOLK, R. J. (1976). NITRATE UPTAKE DURING RECOVERY FROM NITROGEN DEFICIENCY. PHYSIOLOGIA PLANTARUM, 36(2), 174–181. https://doi.org/10.1111/j.1399-3054.1976.tb03931.x JACKSON, W. A., JOHNSON, R. E., & VOLK, R. J. (1974). NITRITE UPTAKE BY NITROGEN-DEPLETED WHEAT SEEDLINGS. PHYSIOLOGIA PLANTARUM, 32(1), 37–42. https://doi.org/10.1111/j.1399-3054.1974.tb03723.x JACKSON, W. A., JOHNSON, R. E., & VOLK, R. J. (1974). NITRITE UPTAKE PATTERNS IN WHEAT SEEDLINGS AS INFLUENCED BY NITRATE AND AMMONIUM. PHYSIOLOGIA PLANTARUM, 32(2), 108–114. https://doi.org/10.1111/j.1399-3054.1974.tb03736.x JACKSON, W. A., FLESHER, D., & HAGEMAN, R. H. (1973). NITRATE UPTAKE BY DARK-GROWN CORN SEEDLINGS - SOME CHARACTERISTICS OF APPARENT INDUCTION. PLANT PHYSIOLOGY, 51(1), 120–127. https://doi.org/10.1104/pp.51.1.120