Cover Articles

Kronzucker et al.
(2013, Plant & Soil)

Kronzucker et al.
(2003, Physiologia Plantarum)

Balkos et al.
(2010, Plant, Cell & Environment)

Li et al.
(2022, Plant, Cell & Environment)

Publication Highlights

Measurements of NH4+ and NO3 root acquisition capacity with N-13 radiotracer in roots of late-successional conifers reveal a strong preference for NH4+-nitrogen and limited capacity to access NO3—nitrogen from soil (Kronzucker et al., 1997, Nature 385,59). Plant roots differ in their adaptation to the NH4+ or NO3 sources of nitrogen, which can determine plant distribution patterns in ecology (Britto & Kronzucker, 2002, Journal of Plant Physiology 159, 567; Kronzucker et al., 2003, Physiologia Plantarum 117, 264).

Fertilizer nitrogen (N) losses in the field for the “big three” crops, rice, wheat, and maize (Coskun et al., 2017, Nature Plants 3, 1). Losses as high as 50-70% of N applied by farmers are frequently encountered.

Demonstration of NH3 gas transport across plant membranes by radioisotope techniques and electrophysiology (Coskun et al., 2013, Plant Physiology 163, 1859).

Oxygen measurements in cereal roots reveal the shift from ionic NH4+ to gaseous NH3 transport under special conditions, producing very large transmembrane nitrogen fluxes (Coskun et al.,2013, Plant Physiology 163, 1859).


Sodium toxicity in the world’s most important crops species rice, relates to Na+ transport in apoplastic spaces (spaces outside living cells), while transport across root cell membranes is quite small (from a cover article in Canada’s largest national newspaper, The Globe & Mail; see as well Flam-Shepherd et al., 2018, Journal of Experimental Botany 69, 1679).


  1. Ji, R.T, Min, J., Wang, Y., Kronzucker, H.J., Shi, W.M. (2022). The role of plant growth regulators in modulating root architecture and tolerance to high-nitrate stress in tomato. Frontiers in Plant Science 13, 864285.
  2. Kronzucker, H.J., Qiu, Q.S., Sonnewald, U. (2022). The good and the bad of preprint servers in plant physiology. Journal of Plant Physiology 271, 153661.
  3. Li, G.J., Zhang, L., Wu, J.L., Yue, X.W., Wang, M., Sun, L., Di, D.W., Kronzucker, H.J., Shi, W.M. (2022). OsEIL1 protects rice growth under NH4+ nutrition by regulating OsVTC1-3-dependent N-glycosylation and root NH4+ efflux. Plant Cell & Environment 45, 1537-1553 (cover article).
  4. Wu, J.J., Lu, Y.F., Di, D.W., Cai,Y., Zhang, C.H., Kronzucker, H.J., Shi, W.M., Gu, K.J. (2022). OsGF14b is involved in regulating coarse root and fine root biomass partitioning in response to elevated [CO2] in riceJournal of Plant Physiology 268, 153586.
  5. Lu, Y.F., Zhang, X., Ma, M., Zu, W., Kronzucker, H.J., Shi, W.M. (2022). Syringic acid from rice as a biological nitrification and urease inhibitor and its synergism with 1,9-decanediolBiology and Fertility of Soils 58, 277-289.
  6. Min, J., Sun, H., Wang, Y., Pan, Y.F., Kronzucker, H.J., Zhao, D.Q., ShiW.M. (2021). Mechanical side-deep fertilization mitigates ammonia volatilization and nitrogen runoff and increases profitability in rice production independent of fertilizer type and split ratioJournal of Cleaner Production 316, 128370.
  7. Lu, Y.F., Kronzucker, H.J., Shi, W.M. (2021). Stigmasterol root exudation arising from Pseudomonas inoculation of the duckweed rhizosphere enhances nitrogen removal from polluted watersEnvironmental Pollution 287, 117587.
  8. Chen, H.J., Huang, X.F., Shi, W.M., Kronzucker, H.J., Hou, L.H., Yang, H.Y., Song, Q.N., Liu, J., Shi, J.M., Yang, Q.P., Zou, N. (2021). Coordination of nitrogen uptake and assimilation favours the growth and competitiveness of moso bamboo over native tree species in high-NH4+ environmentsJournal of Plant Physiology 266,153508.
  9. Di, D.W., Sun, L., Wang, M., Wu, J.J., Kronzucker, H.J., Fang, S., Chu, J.F., Shi, W.M., Li, G.J. (2021). WRKY46 promotes ammonium tolerance in Arabidopsis by repressing NUDX9 and IAA-conjugating genes and by inhibiting NH4efflux in the root elongation zoneNew Phytologist 232, 190-207.
  10. Britto, D.T., Coskun, D., Kronzucker, H.J. (2021). Potassium physiology from Archean to Holocene: A higher-plant perspectiveJournal of Plant Physiology (Humboldt Review) 262, 153432.  (accompanied by a commissioned Commentary).
  11. Zhang, L., Song, H.Y., Li, B.H., Wang, M., Di, D.W., Lin, X.Y., Kronzucker, H.J., Shi, W.M., Li, G.J. (2021). Induction of S-nitrosoglutathione reductase protects root growth from ammonium toxicity by regulating potassium homeostasis in Arabidopsis and riceJournal of Experimental Botany 72, 4548-4564.
  12. Di, D.W., Li, G.J., Sun, L., Wu, J.J., Wang, M., Kronzucker, H.J., Fang, S., Chu, J.F., Shi, W.M. (2021). High ammonium inhibits root growth in Arabidopsis thaliana by promoting auxin conjugation rather than inhibiting auxin biosynthesis. Journal of Plant Physiology 261, 153415.
  13. Ruwanpathirana, G. P., Plett, D., Williams, R.C., Davey, C.E., Johnston, L.A., Kronzucker, H.J. (2021). Continuous monitoring of plant sodium transport dynamics using clinical PETPlant Methods 17, 8.
  14. Melino, V.J., Plett, D.C., Bendre, P., Thomsen, H.C., Zeisler-Diehl, V.V., Schreiber, L.Kronzucker, H.J. (2021). Nitrogen depletion enhances endodermal suberization without restricting transporter-mediated root NO3– influx.  Journal of Plant Physiology 257, 153334.
  15. Min, J., Sun, H.J., Kronzucker, H.J., Wang, Y., Shi, W.M. (2021). Comprehensive assessment of the effects of nitrification inhibitor application on reactive nitrogen loss in intensive vegetable production systemsAgriculture, Ecosystems and Environment 307, 107227.
  16. Zhou, X.B., Yang, J.Kronzucker, H.J., Shi, W.M. (2020). Selenium biofortification and interaction with other elements in plantsFrontiers in Plant Science 11, 586421.
  17.  Li, Y., Yuan, W., Li, L.C., Dai, H., Dang, X.L., Miao, R., Baluska, F., Kronzucker, H.J., Lu, C.M., Zhang, J.H., Xu, W.F. (2020). Comparative analysis reveals gravity is involved in the MIZ1-regulated root hydrotropismJournal of Experimental Botany 71, 7316-7330.
  18. Zou, N., Shi, W.M., Hou, L., Kronzucker, H.J., Huang, L., Gu, H., Yang, Q., Deng, G., Yang, G. (2020). Superior growth, N uptake, and NH4tolerance in the giant bamboo Phyllostachys edulis over the broad-leaved tree Castanopsis fargesii at elevated NH4+ may underlie community succession and favor the expansion of bambooTree Physiology 44, 1606-1622.
  19. Siao, W., Coskun, D., Baluška, F., Kronzucker, H.J., Xu, W.F. (2020). Root-apex proton fluxes at the centre of soil-stress acclimationTrends in Plant Science 25, 794-804.
  20. Chen, M., Chen, G., Di, D.W., Kronzucker, H.J., Shi, W.M. (2020). Higher nitrogen use efficiency (NUE) in hybrid “super rice” links to improved morphological and physiological traits in seedling roots. Journal of Plant Physiology 251, 153191.
  21. Plett, D.C., Ranathunge, K., Melino, V.J., Kuya, N., Uga, Y., Kronzucker, H.J. (2020). The intersection of nitrogen nutrition and water use in plants: New paths toward improved crop productivityJournal of Experimental Botany 71, 4452-4468.
  22. Sun, L., Di, D.W., Li, G.J., Kronzucker, H.J., Wu, X., Shi, W.M. (2020). Endogenous ABA alleviates rice ammonium toxicity by reducing ROS and free ammonium via regulation of the SAPK9-bZIP20 pathwayJournal of Experimental Botany 71, 4562-4577.
  23. Sun, L., Di, D.W., Li, G.J., Li, Y., Kronzucker H.J., Shi, W.M. (2020). Transcriptome analysis of rice (Oryza sativa L.) in response to ammonium resupply reveals the involvement of phytohormone signaling and the transcription factor OsJAZ9 in reprogramming of nitrogen uptake and metabolismJournal of Plant Physiology 246, 153137.
  24. Wang, M., Zhang, P., Liu, Q., Li, G.J., Di, D.W., Xia, G.M., Kronzucker, H.J., Fang, S., Chu, J.F., Shi, W.M. (2020). TaANR1-TaBG1 and TaWabi5-TaNRT2s/NARs link ABA metabolism and nitrate acquisition in wheat roots. Plant Physiology 182, 1440-1453.
  25. Munns, R., Day, D.A., Fricke, W., Watt, M., Arsova, B., Barkla, B.J., Bose, J., Byrt, C.S., Chen, Z., Foster, K.J., Gilliham, M., Henderson, S.W., Jenkins, C.L.D., Kronzucker, H.J., Miklavcic, S.J., Plett, P., Roy, S.J., Shabala, S., Shelden, M., Soole, K., Taylor, N.L., Tester, M., Wege, S., Wegner, L., Tyerman, S.D. (2020). Energy costs of salt tolerance in crop plants. New Phytologist (Tansley Review) 225, 1072-1090.
  26. Zhang, X., Lu, Y.F., Yang, T., Kronzucker, H.J., Shi, W.M. (2019). Factors influencing the release of the biological nitrification inhibitor 1,9-decanediol from rice (Oryza sativa L.) roots.  Plant and Soil 436253-265.
  27. Coskun, D., Deshmukh, R., Sonah, H., Menzies, J., Reynolds, O., Ma, J.F., Kronzucker, H.J., Bélanger, R. (2019). In defense of the selective transport and role of silicon in plants. New Phytologist  223, 514-516.
  28. Li, G.J., Zhang, L., Wang, M., Di, D.W., Kronzucker, H.J., Shi, W.M. (2019). The Arabidopsis AMOT1/EIN3 gene plays an important role in the amelioration of ammonium toxicity.  Journal of Experimental Botany 701375-1388.
  29. Wang, R., Min, J, Kronzucker, H.J., Li, Y.L., Shi, W.M. (2019). N and P runoff losses in China’s vegetable production systems: Loss characteristics, impact, and management practices. Science of the Total Environment 663, 971-979.
  30. Coskun, D., Deshmukh, R., Sonah, H., Menzies, J.G., Reynolds, O., Ma, J.F., Kronzucker, H.J., Bélanger, R.R. (2019). The controversies of silicon’s role in plant biology. New Phytologist (Tansley Review221, 67-85.
  31. Xu, F.Y., Wang, K., Yuan, W., Xu, W.F., Shuang, L., Kronzucker, H.J., Chen, G.L., Miao, R., Zhang, M.X., Ding, M., Xiao, L., Kai, L., Zhang, J.H., Zhu, Y.Y. (2019). Overexpression of rice aquaporin OsPIP1;2 improves yield by enhancing mesophyll CO2 conductance and phloem sucrose transport. Journal of Experimental Botany 70, 671-681.
  32. Lu, Y.F., Zhang, X., Jiang, J.F., Kronzucker, H.J., Shen, W.S., Shi, W.M. (2019). Effects of the biological nitrification inhibitor 1,9-decanediol on nitrification and ammonia oxidizers in three agricultural soils. Soil Biology and Biochemistry 129, 48-59.
  33. Hamam, A.M., Coskun, D., Britto, D.T., Plett, D., Kronzucker, H.J. (2019). Plasma-membrane electrical responses to salt and osmotic gradients contradict radiotracer kinetics, and reveal Na+-transport dynamics in rice (Oryza sativa L.). Planta 2491037-1051.
  34. Zhang, L., Li, G.J., Dong, G.Q., Wang, M., Di, D.W., Kronzucker, H.J., Shi, W.M. (2019). Characterization and comparison of nitrate fluxes in Tamarix ramosissima and cotton roots under simulated drought conditionTree Physiology 39, 628-640.
  35. Di, D.W., Sun, L., Zhang, X., Li, G.J., Kronzucker, H.J., Shi, W.M. (2018). Involvement of auxin in the regulation of ammonium tolerance in rice (Oryza sativa L.). Plant and Soil 432, 373-387.
  36. Flam-Shepherd, R., Britto, D.T., Kronzucker, H. J. (2018). vaCATE: A platform for automating data output from compartmental analysis by tracer efflux. Journal of Open Research Software 6:21, 1-9,
  37. Britto, D. T. & Kronzucker, H. J. (2018). From aquaporin to ecosystem: Plants in the water cycle.  Journal of Plant Physiology 2271-2.
  38. Zhang, L., Li, G.J., Wang, M., Di, D.W., Sun, L., Kronzucker, H.J., Shi, W.M. (2018). Excess iron stress reduces root tip zone growth through nitric oxide-mediated repression of potassium homeostasis in Arabidopsis. New Phytologist 219, 259-274.
  39. Miao, R., Wang, M., Yuan, W., Ren, Y., Li, Y., Zhang, N., Zhang, J.H., Kronzucker, H.J., Xu, W.F. (2018). Comparative Analysis of Arabidopsis Ecotypes Reveals a Role for Brassinosteroids in Root Hydrotropism. Plant Physiology 176, 2720-2736.
  40. Flam-Shepherd, R., Huynh, W.Q., Coskun, D., Hamam, A.M., Britto, D.T., Kronzucker, H.J. (2018). Membrane fluxes, bypass flows, and sodium stress in rice: the influence of silicon. (Designated by the journal editors as a “stand-out” and paradigm-shifting research paper, accompanied by a commissioned Insight article titled “Sodium fluxes and silicon at the root plasma membrane: a paradigm shift?Journal of Experimental Botany 69, 1679-1692.  Also see this article.
  41. Zhang, L., Li, G.J., Li, Y., Min, J., Kronzucker, H.J., Shi, W.M. (2018). Tomato plants ectopically expressing Arabidopsis GRF9 show enhanced resistance to phosphate deficiency and improved fruit production in the field. Journal of Plant Physiology 226, 31-39.
  42. Wu, J.J., Kronzucker, H.J., Shi, W.M. (2018). Dynamic analysis of the impact of free-air CO2 enrichment (FACE) on biomass and N uptake in two contrasting genotypes of rice. Functional Plant Biology 45, 696-704.
  43. Coskun, D., Britto, D.T., Kronzucker, H.J. (2017). The nitrogen-potassium intersection: Membranes, metabolism, and mechanism. Plant, Cell & Environment (Yearly Reviews of Environmental Plant Physiology40, 2029-2041.
  44. Coskun, D., Britto, D.T., Shi, W.M., Kronzucker, H.J. (2017). How plant root exudates shape the nitrogen cycle. Trends in Plant Science 22, 661-673.
  45. Coskun, D., Britto, D.T., Shi, W.M., Kronzucker, H.J. (2017). Nitrogen transformations in modern agriculture and the role of biological nitrification inhibition. Nature Plants 3, 1-10.  (Featured in numerous news outlets)
  46. Sun, L., Di, D.W., Li, G.J., Kronzucker, H.J., Shi, W.M. (2017). Spatio-temporal dynamics in global rice gene expression (Oryza sativa L.) in response to high ammonium stress. Journal of Plant Physiology 212, 94-104.
  47. Hessini, K., Kronzucker, H.J, Abdelly, C., Cruz, C. (2017). Drought stress obliterates the preference for ammonium as an N source in the C4 plant Spartina alterniflora. Journal of Plant Physiology 213, 98-107.
  48. Yu, F.W., Zhu, X.F., Li, G.J., Kronzucker, H.J., Shi, W.M. (2016). The chloroplast protease AMOS1/EGY1 affects phosphate homeostasis under phosphate stress. Plant Physiology 172, 1200-1208.
  49. Coskun, D., Britto, D.T., Huynh, W.Q., Kronzucker, H.J. (2016). The role of silicon in higher plants under salinity and drought stress. Frontiers in Plant Science 7,  Number  1072, doi:  10.3389/fpls.2016.01072.
  50. Sun, L., Lu, Y.F., Yu, F.W., Kronzucker, H.J., Shi, W.M. (2016). Biological nitrification inhibition by rice root exudates and its relationship with nitrogen use efficiency. New Phytologist 212,646-656. (Highlighted by the American Association for the Advancement of Science, the New Phytologist Trust, the Global Plant Council, and featured in >300 international news outlets).
  51. Sun, L, Lu, Y.F., Kronzucker, H.J., Shi, W.M. (2016). Quantification and enzyme targets of fatty acid amides from duckweed root exudates involved in the stimulation of denitrification. Journal of Plant Physiology 198, 81-88.
  52. Li, Y.L., Kronzucker, H.J., Shi, W.M. (2016). Microprofiling of nitrogen patches in paddy soil: Analysis of spatiotemporal nutrient heterogeneity at the microscale. Scientific Reports (Nature6, Number 27064, doi: 10.1038/srep27064.
  53. Li, G.J., Kronzucker, H.J., Shi, W.M. (2016). The response of the root apex in plant adaptation to iron heterogeneity in soil. Frontiers in Plant Science 7, Number 00344, doi: 10.3389/fpls.2016.00344.
  54. Hamam, A.M., Britto, D.T., Flam-Shepherd, R., Kronzucker, H.J. (2016). Measurement of differential Na+ efflux from apical and bulk root zones of intact barley and Arabidopsis plants. Frontiers in Plant Science 7, Number 00272, doi: 10.3389/fpls.2016.00272.
  55. Coskun, D., Britto, D.T., Kochian, L.V., Kronzucker, H.J. (2016). How high do ion fluxes go? A re-evaluation of the two-mechanism model of K+ transport in plant roots. Plant Science 243, 96-104.
  56. Li, G.J., Kronzucker, H.J., Shi, W.M. (2016). Root developmental adaptation to Fe toxicity: mechanisms and management. Plant Signaling & Behavior 11, doi: 10.1080/15592324.2015.1117722.
  57. Britto, D.T., Wilhelm, C., Kronzucker H.J. (2016). From biochemical pathways to the agro-ecological scale: Carbon capture in a changing climate. Journal of Plant Physiology 203, 1-2.
  58. Coskun, D., Britto, D.T., Kronzucker, H.J. (2016). Nutrient constraints on terrestrial carbon fixation: The role of nitrogen. Journal of Plant Physiology 203, 95-109.
  59. Li, G.J., Song, H., Li, B.H., Kronzucker, H.J., Shi, W.M. (2015). Auxin Resistant1 and PIN-FORMED2 protect lateral root formation in Arabidopsis under iron stress. Plant Physiology169, 2608-2623.
  60. Britto, D.T. & Kronzucker, H.J. (2015). Sodium efflux in plant roots: What do we really know?Journal of Plant Physiology 186-7, 1-12.
  61. Li, G.J., Xu, W.F., Kronzucker, H.J., Shi, W.M. (2015). Ethylene is critical to the maintenance of primary root growth and Fe homeostasis under Fe stress in Arabidopsis. Journal of Experimental Botany 66, 2041-2054. [Supplemental Data]
  62. Kronzucker, H.J. (2015). Pride in being a plant physiologist. Journal of Plant Physiology 175, A1-2.
  63. Kronzucker, H. J. & Coskun, D. (2015). Bioengineering nitrogen acquisition in rice: Promises for global food security. In: Biological Nitrogen Fixation, Wiley/Blackwell (Frans J. de Bruijn, editor; invited chapter). Chapter V., pp. 47-56.
  64. Coskun, D., Britto, D.T., Kronzucker, H.J. (2014). The physiology of channel-mediated K+acquisition in roots of higher plants. Physiologia Plantarum 151, 305-312. 
  65. Coskun, D., Britto, D.T., Hamam, A., Kronzucker, H.J. (2014). Measuring fluxes of mineral nutrients and toxicants in plants with radioactive tracers. Journal of Visualized Experiments 90, doi: 10.3791/51877.
  66. Li, B.H., Li, G.J., Kronzucker, H.J., Baluška, F., Shi, W.M. (2014). Ammonium stress in Arabidopsis: signaling, genetic loci, and physiological targets. Trends in Plant Science 19,107-114.
  67. Britto, D.T., Balkos, K.D., Becker, A., Coskun, D., Huynh, W.Q., Kronzucker, H.J. (2014). Potassium and nitrogen poising: physiological changes and biomass gains in rice and barley. Canadian Journal of Plant Science 94, 1085-1089.
  68. Lu, Y.F., Zhou, Y., Nakai, S., Hosomi, M., Zhang, H., Kronzucker, H.J., Shi, W.M. (2014). Stimulation of nitrogen removal in the rhizosphere of aquatic duckweed by root exudate components. Planta 239, 591-603.
  69. Coskun, D., Britto, D.T., Li, M., Becker, A., Kronzucker, H.J. (2013). Rapid ammonia gas transport accounts for futile transmembrane cycling under NH3/NH4+ toxicity in plant roots. Plant Physiology 163, 1859-1867.
  70. Xu, W.F., Jia, L.G., Shi, W.M., Baluška, F., Kronzucker, H.J., Liang, J.S., Zhang, J.H. (2013). Tomato 14-3-3 protein TFT4 modulates proton efflux, basipetal auxin transport and PKS5-J3 pathway in root growth response to alkaline stress. Plant Physiology 163, 1817-1828.
  71. Kronzucker, H.J., Coskun, D., Schulze, L.M., Wong, J.R., Britto, D.T. (2013). Sodium as nutrient and toxicant. Plant and Soil 369, 1-23 (Marschner Review & cover article).
  72. Britto, D.T. & Kronzucker, H.J. (2013). Ecological significance and complexity of N-source preference in plants. Annals of Botany 6, 957-963.
  73. Zou, N., Li, B.H., Chen, H., Su, Y., Kronzucker, H.J., Xiong, L.M., Baluška, F., Shi, W.M. (2013). GSA-1/ARG1 protects root gravitropism in Arabidopsis under ammonium stress. New Phytologist 200, 97-111.
  74. Coskun, D. & Kronzucker, H.J. (2013). Complexity of potassium acquisition: How much flows through channels? Plant Signaling & Behavior 8:e24799; PMID: 23656868.
  75. Coskun, D., Britto, D.T., Li, M., Oh, S., Kronzucker, H.J. (2013). Capacity and plasticity of K+channels and high-affinity transporters in roots of barley (Hordeum vulgare L.) andArabidopsis thaliana L. Plant Physiology 162, 496-511.
  76. Coskun, D., Britto, D.T., Jean, Y-K., Kabir, I., Tolay, I.. Torun, A.A., Kronzucker, H.J. (2013). K+efflux and retention in response to NaCl stress do not predict salt tolerance in contrasting genotypes of rice (Oryza sativa L.). PLOS ONE  8, e57767.
  77. Li, G., Li, B.H., Dong, G., Feng, X., Kronzucker, H.J., Shi W.M. (2013). Ammonium-induced shoot ethylene production is associated with the inhibition of lateral root formation in Arabidopsis. Journal of Experimental Botany 64, 1413-1425.
  78. Li, B.H., Kronzucker, H.J., Shi, W.M. (2013). Molecular components of stress-responsive plastid retrograde signaling networks and their involvement in ammonium stress. Plant Signaling & Behavior 8. eLocation ID: e23107; doi: 10.4161/psb.23107.
  79. Chen, G., Guo, S., Kronzucker, H.J., Shi, W.M. (2013). Nitrogen use efficiency (NUE) in rice links to NH4+ toxicity and futile NH4+ cycling in roots. Plant and Soil 369, 351-363.
  80. Britto, D.T.& Kronzucker, H.J. (2013). Flux measurements of cations using radioactive tracers. Methods in Molecular Biology 953, 161-170.
  81. Li, B.H., Li, Q., Xiong, L., Kronzucker, H.J., Krämer, U., Shi W.M. (2012). Arabidopsis plastid AMOS1/EGY1 integrates abscisic acid signaling to regulate global gene expression response to ammonium stress. Plant Physiology 160, 2040-2051.
  82. Britto, D.T. & Kronzucker, H.J. (2012). Isotope techniques to study kinetics of Na+ and K+transport under salinity conditions. Methods in Molecular Biology 913, 389-398.
  83. Zou, N., Li, B.H., Dong, G.Q., Kronzucker, H.J., Shi, W.M. (2012). Ammonium-induced loss of root gravitropism is related to auxin distribution and TRH1 function, and is uncoupled from the inhibition of root elongation in Arabidopsis. Journal of Experimental Botany 63, 3777-3788.
  84. Gattward, J.N., de Almeida, A.F., Souza Jú, J.O., Gomes, F.P., Kronzucker, H.J. (2012). Sodium-potassium synergism in Theobroma cacao: Stimulation of photosynthesis, water-use-efficiency, and mineral nutrition. Physiologia Plantarum 146, 350-362.
  85. Schulze, L.M., Britto, D.T., Li, M., Kronzucker, H.J. (2012). A pharmacological analysis of high-affinity sodium transport in barley (Hordeum vulgare L.): A 24Na+42K+ study. Journal of Experimental Botany 63, 2479-2489.
  86. Li, G.J., Dong, G.Q., Li, B.H., Li, Q., Kronzucker, H.J., Shi W.M. (2012). Isolation and characterization of a novel ammonium-overly-sensitive mutant, amos2, in Arabidopsis thaliana. Planta 235, 239-252.
  87. Coskun, D., Britto, D.T., Jean, Y-K., Schulze L., Becker, A., Kronzucker, H.J. (2012). Silver ions disrupt K+ homeostasis and cellular integrity in barley (Hordeum vulgare L.) roots. Journal of Experimental Botany 63, 151-162.
  88. Li, B.H., Li, Q., Kronzucker, H.J., Shi, W.M. (2011). Roles of abscisic acid and auxin in shoot-supplied ammonium inhibition of root system  development. Plant Signaling & Behavior 6,1451-1453.
  89. Britto, D.T.& Kronzucker, H.J. (2011). Genes do not form channels. Plant and Soil 346, 15-17.
  90. Li, B.H., Li, Q., Su, Y., Chen, H., Xiong, L, Mi, G., Kronzucker, H.J., Shi, W.M. (2011). Shoot-supplied ammonium targets the root auxin influx carrier AUX1 and inhibits lateral root emergence in Arabidopsis. Plant, Cell & Environment 34, 933-946.
  91. Kronzucker, H.J. & Britto, D.T. (2011). Sodium transport in plants: A critical review. New Phytologist 189, 54-81. (Tansley Review)
  92. Coskun, D., Britto, D.T., Kronzucker, H.J. (2010). Regulation and mechanism of potassium release from barley roots: an in planta 42K analysis. New Phytologist  188, 1028–1038.
  93. Li, Q., Li, B.H., Kronzucker, H.J., Shi, W.M. (2010). Root growth inhibition by NH4+ in Arabidopsis is mediated by the root tip and is linked to NH4efflux and GMPase activity. Plant, Cell& Environment 33, 1529-1542.
  94. Britto, D.T., Ebrahimi-Ardebili S., Hamam, A.M., Coskun, D., Kronzucker, H.J. (2010). 42K analysis of sodium-induced potassium efflux in barley: Mechanism and relevance to salt tolerance. New Phytologist 186, 373-384.
  95. Balkos, K.D., Britto, D.T., Kronzucker, H.J. (2010). Optimization of ammonium acquisition and metabolism by potassium in rice (Oryza sativa L. cv. IR-72). Plant, Cell & Environment 33, 23–34.(cover article)
  96. Britto, D.T. & Kronzucker, H.J. (2009). Ussing’s conundrum and the search for transport mechanisms in plants. New Phytologist 183, 243-246.
  97. Szczerba, M.W., Britto, D.T., Kronzucker, H.J. (2009). K+ transport in plants: physiology and molecular biology. Journal of Plant Physiology 166, 447-466.
  98. Malagoli, P., Britto, D.T., Schulze, L.M., Kronzucker, H.J. (2008). Futile Na+ cycling at the root plasma membrane in rice (Oryza sativa L.) – kinetics, energetics, and relation to salinity tolerance. Journal of Experimental Botany 59, 4109–4117.
  99. Szczerba, M.W., Britto, D.T., Ali, S.A., Balkos, K.D., Kronzucker, H.J. (2008). NH4+-stimulated and -inhibited components of K+ transport in rice (Oryza sativa L.). Journal of Experimental Botany 59, 3415-3423.
  100. Kronzucker, H.J., Szczerba, M.W., Schulze, L.M., Britto, D.T. (2008). Non-reciprocal interactions between K+ and Na+ ions in barley. Journal of Experimental Botany 59, 2793-2801.
  101. Britto, D.T. & Kronzucker, H.J. (2008). Cellular mechanisms of potassium transport in plants. Physiologia Plantarum 133, 637-650.
  102. Szczerba, M.W., Britto, D.T., Balkos, Kronzucker, H.J. (2008). Alleviation of rapid, futile ammonium cycling at the plasma membrane by potassium reveals K+-sensitive and -insensitive components of NH4+ transport. Journal of Experimental Botany 59, 303-313.
  103. Britto, D.T. & Kronzucker, H.J. (2007).  Mechanisms of potassium transport in plants. Proceedings of the International Fertiliser Society 605, 1-24.
  104. Britto, D.T. & Kronzucker, H.J. (2006). Futile cycling at the plasma membrane: A hallmark of low-affinity nutrient transport. Trends in Plant Science 11, 529-534.
  105. Kronzucker, H.J., Szczerba, M.W., Moazami-Goudarzi, M., Britto, D.T. (2006). The cytosolic Na+:K+ ratio does not explain salinity-induced growth impairment in barley : A dual-tracer study using 42K+ and 24Na+. Plant, Cell& Environment 29, 2228-2237.
  106. Szczerba, M.W., Britto, D.T., Kronzucker, H.J. (2006). Rapid, futile K+ cycling and pool-size dynamics define low-affinity potassium transport in barley. Plant Physiology 141, 1494-1507.
  107. Szczerba, M.W., Britto, D.T., Kronzucker, H.J. (2006). The face value of ion fluxes: the challenge of determining influx in the low-affinity transport range. Journal of Experimental Botany 57, 3293-3300.
  108. Britto, D.T., Szczerba, M.W., Kronzucker, H.J. (2006). A new, non-perturbing sampling procedure in tracer exchange measurements. Journal of Experimental Botany 57, 1309-1314.
  109. Britto, D.T. & Kronzucker, H.J. (2005). Plant nitrogen transport and its regulation in changing soil environments. Journal of Crop Improvement 15,1-23.
  110. Britto, D.T. & Kronzucker, H.J. (2005). Nitrogen acquisition, PEP carboxylase, and cellular pH homeostasis: New views on old paradigms. Plant, Cell & Environment 28, 1396-1409.
  111. Kirk, G.J.D & Kronzucker, H.J. (2005). The potential for nitrification and nitrate uptake in the rhizospheres of wetland plants: A modelling study. Annals of Botany 96, 639 – 646.
  112. Kronzucker, H.J. (2005). A new encyclopedic account of plant nutrition: broad, brilliant, but also flawed. American Journal of Botany 92, 1421-1424.
  113. Britto, D.T. & Kronzucker, H.J. (2005). Plant nitrogen transport and its regulation in changing soil environments. In: Enhancing the Efficiency of Nitrogen Utilization in Plants. (A.S. Basra, S.S. Goyal& R. Tischner, eds.). The Haworth Press Inc., Binghampton, NY, pp. 1-23.
  114. Britto, D.T. & Kronzucker H.J. (2004). Bioengineering N acquisition in rice: Can novel initiatives in rice genomics and physiology contribute to global food security? BioEssays 26, 683-692.
  115. Britto, D.T., Ruth, T.J., Lapi, S., Kronzucker, H.J. (2004). Cellular and whole-plant chloride dynamics in barley: Insights into chloride-nitrogen interactions and salinity responses. Planta 218, 615-622.
  116. Britto, D.T. & Kronzucker H.J. (2004). Biology and Biotechnology of Nitrogen Acquisition in Rice: Implications for Food Security. In: Plant Ecophysiology, Vol. 3: Nitrogen Acquisition and Assimilation in Higher Plants (S. Amâio, & I.D.H. Stulen, eds.). Kluwer Academic Publishers, The Netherlands, pp. 261-281.
  117. Britto, D.T. & Kronzucker, H.J. (2003). Trans-stimulation of 13NH4+ efflux provides evidence for the cytosolic origin of tracer in the compartmental analysis of barley roots. Functional Plant Biology 30, 1233-1238.
  118. Britto, D.T. & Kronzucker, H.J. (2003). Cytosolic ion exchange dynamics: Insights into the mechanisms of component ion fluxes and their measurement. Functional Plant Biology 30, 355-363.
  119. Kronzucker, H.J., Szczerba, M.W., Britto, D.T. (2003). Cytosolic potassium homeostasis revisited: 42K-tracer analysis reveals set-point variations in [K+]. Planta 217, 540-546.
  120. Britto, D.T. & Kronzucker, H.J. (2003). Ion fluxes and cytosolic pool sizes: examining fundamental relationships in transmembrane flux regulation. Planta 217, 490-497.
  121. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M., Britto, D.T. (2003). Root ammonium transport efficiency as a determinant in forest colonization patterns: an hypothesis. Physiologia Plantarum 117, 164-170. (cover article)
  122. Britto, D.T. & Kronzucker, H.J. (2003). The case for cytosolic NO3heterostasis: a critique of a recently proposed model. Plant, Cell & Environment 26, 183-188.
  123. Britto, D.T., Siddiqi, M.Y., Glass, A.D.M., Kronzucker, H.J. (2002). Subcellular NH4+ flux analysis in leaf segments of wheat (Triticum aestivum L.). New Phytologist 155, 373-380.
  124. Britto, D.T. & Kronzucker, H.J. (2002). NH4+ toxicity in higher plants: A critical review. Journal of Plant Physiology 159, 567-584. (invited review)
  125. Glass, A.D.M., Britto, D.T., Kaiser, B.N., Kinghorn, J.R., Kronzucker, H.J., Kumar, A., Okamoto, M., Rawat, S., Siddiqi, M.Y., Unkles, S.E., Vidmar, J.J. (2002). The regulation of nitrate and ammonium transport systems in plants. Journal of Experimental Botany 53, 855-864.
  126. Kronzucker, H.J., Britto, D.T., Davenport, R., Tester, M. (2001). Ammonium toxicity and the real cost of transport. Trends in Plant Science 6, 335-337.
  127. Britto, D.T., Siddiqi, M.Y., Glass, A.D.M., Kronzucker, H.J. (2001). Futile transmembrane NH4+ cycling: A cellular hypothesis to explain ammonium toxicity in plants. Proceedings of the National Academy of Sciences, USA 98,4255-4258.
  128. Britto, D.T. & Kronzucker, H.J. (2001). Constancy of nitrogen turnover kinetics in the plant cell: Insights into the integration of subcellular N fluxes. Planta 213, 175-181.
  129. Britto, D.T. & Kronzucker, H.J. (2001). Can unidirectional influx be measured in higher plants? A mathematical approach using parameters from efflux analysis. New Phytologist 150, 37-47.
  130. Britto, D.T., Glass, A.D.M., Kronzucker, H.J., Siddiqi, M.Y. (2001). Cytosolic concentrations and transmembrane fluxes of NH4+/NH3. An examination of recent proposals. Plant Physiology 125, 523-526.
  131. Glass, A.D.M., Britto, D.T., Kaiser, B.N., Kronzucker, H.J., Kumar, A., Okamoto, M., Rawat, S.R., Siddiqi, M.Y., Silim, S.M., Vidmar, J.J., Zhou, D. (2001). Nitrogen transport in plants, with an emphasis on the regulation of fluxes to match plant demand. Journal of Plant Nutrition and Soil Science 164, 199-207.
  132. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M., Kirk, G.J.D. (2000). Comparative kinetic analysis of ammonium and nitrate acquisition by tropical lowland rice: Implications for rice cultivation and yield potential. New Phytologist 145, 471-476.
  133. Min, X.J., Siddiqi, M.Y., Glass, A.D.M., Guy, R.D., Kronzucker, H.J. (2000). A Comparative kinetic analysis of nitrate and ammonium influx in two early-successional tree species of temperate and boreal ecosystems. Plant, Cell & Environment23, 321-328.
  134. Britto, D.T., Glass, A.D.M., Kronzucker, H.J. (2000). Studies of Nitrogen Absorption and Assimilation in Plants by Use of 13N. In: Isotope Production And Applications In The 21st Century: Proceedings of the 3rd International Conference on Isotopes (Nigel Stevenson, ed.). World Scientific Publ. Co., Singapore, pp. 433-435.
  135. Kirk, G.J.D. & Kronzucker, H.J. (2000). Nitrogen Uptake by Rice Roots. In:Carbon and Nitrogen Dynamics in Flooded Ecosystems (G.J.D. Kirk & D.C. Olk, eds.). International Rice Research Institute, IRRI, Makati City, Philippines, pp. 147-162.
  136. Bingham, I.J., Glass, A.D.M., Kronzucker, H.J., Robinson, D., Scrimgeour, C.M. (2000). Isotope techniques. In: Root Methods: A Handbook. pp. 365-402.
  137. Rawat, S.R., Silim, S.N., Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M. (1999). AtAMT1 gene expression and NH4+ uptake in roots of Arabidopsis thaliana : Evidence for regulation by root glutamine levels. The Plant Journal 19, 143-152.
  138. Kronzucker, H.J., Glass, A.D.M., Siddiqi, M.Y. (1999). Inhibition of nitrate uptake by ammonium in barley: Analysis of component fluxes. Plant Physiology 120, 283-292.
  139. Min, X.J., Siddiqi, M.Y., Glass, A.D.M., Guy, R.D., Kronzucker, H.J. (1999). A comparative study of fluxes and compartmentation of nitrate and ammonium in early-successional tree species. Plant, Cell & Environment 22, 821-830.
  140. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M., Kirk, G.J.D. (1999). Nitrate-ammonium synergism in rice: A subcellular analysis. Plant Physiology 119,1041-1046.
  141. Glass, A.D.M., Erner, Y., Hunt, T., Kronzucker, H.J., Okamoto, M., Rawat, S.R., Silim, S., Schjoerring, J.K., Siddiqi, M.Y., Vidmar, J.J., Wang, M.Y., Zhou, D. (1999). Inorganic Nitrogen Absorption by Plant Roots: Physiology and Molecular Biology. In: Plant Nutrition Molecular Biology and Genetics (G. Gissel-Nielsen & A. Jensen, eds.). Kluwer Academic, Wageningen, Netherlands, pp. 1-16.
  142. Kronzucker, H.J., Schjoerring, J.K., Erner, Y., Kirk, G.J.D., Siddiqi, M.Y., Glass, A.D.M. (1998). Dynamic interactions between root NH4+ influx and long-distance N translocation in rice: Insights into feedback processes. Plant & Cell Physiology 39, 1287-1293.
  143. Min, X.J., Siddiqi, M.Y., Guy, R.D., Glass, A.D.M., Kronzucker, H.J. (1998). Induction of nitrate uptake and nitrate reductase activity in trembling aspen and lodgepole pine. Plant, Cell & Environment 21, 1039-1046.
  144. Kronzucker, H.J. & Kirk, G.J.D. (1998). Importance of nitrate vs. ammonium for potential yield. In: Irrigated Rice Ecosystem. International Rice Research Institute, IRRI Research Reports, Makati City, Philippines, pp.12-13.
  145. Siddiqi, M.Y., Kronzucker, H.J., Britto, D.T., Glass, A.D.M. (1998). Growth of a tomato crop at reduced nutrient concentrations as a strategy to limit eutrophication. Journal of Plant Nutrition 21, 1879-1895.
  146. Kronzucker, H.J., Kirk, G.J.D., Siddiqi, M.Y., Glass, A.D.M. (1998). Effects of hypoxia on 13NH4+ fluxes in rice roots: Kinetics and compartmental analysis. Plant Physiology 116, 581-587.
  147. Glass, A.D.M., Erner, Y., Kronzucker, H.J., Schjoerring, J.K., Siddiqi, M.Y., Wang, M.Y. (1997). Ammonium fluxes into plant roots: Energetics, kinetics and regulation.  Zeitschrift für Pflanzenernährung und Bodenkunde 160, 261-268.
  148. Johnson, R.R., Glass, A.D.M., Kronzucker, H.J., Gelbort, Z., Venczel, E., Paul, M., Berkovits, D., Cavan, A., Kashiv, Y., Ghelberg, S. (1997). Measurement of aluminum transport in wheat at the cellular level. Nuclear Instruments and Methods in Physics Research (Section B) – Beam Interactions with Materials and Atoms 123, 283-286.
  149. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M. (1997). Conifer root discrimination against soil nitrate and the ecology of forest succession. Nature 385, 59-61.
  150. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M. (1996). Kinetics of NH4+ influx in spruce. Plant Physiology 110, 773-779.
  151. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M. (1995). Analysis of 13NH4+efflux in spruce roots: A test case for phase identification in compartmental analysis. Plant Physiology 109, 481-490.
  152. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M. (1995). Kinetics of NO3 influx in spruce. Plant Physiology 109, 319-326.
  153. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M. (1995). Compartmentation and flux characteristics of ammonium in spruce. Planta 196, 691-698.
  154. Kronzucker, H.J., Glass, A.D.M., Siddiqi, M.Y. (1995). Nitrate induction in spruce: An approach using compartmental analysis. Planta 196, 683-690.
  155. Kronzucker, H.J., Siddiqi, M.Y., Glass, A.D.M. (1995). Compartmentation and flux characteristics of nitrate in spruce. Planta 196, 674-682.