Graeme Nicol

Research focus

Graeme Nicol’s research group has contributed to understanding the roles of archaea and bacteria to nitrogen cycling in soil and cultivated the World’s first obligate acidophilic ammonia oxidiser Nitrosotalea devaniterrae, which, in part, solved the century-old paradox of why nitrification occurs in acid soils. His group also cultivated further ammonia-oxidizing archaea including the first isolate of the Nitrosocosmicus genus. He developed the use of stable-isotope approaches for examining microbial activity in situ and has made significant contributions to understanding the ecophysiology and niche differentiation of nitrifier groups in soil. This has included determining the impact of nitrogen and fertiliser source on contributions to N2O production linked to archaeal vs bacterial nitrifier activity. Recently, research interests have developed into soil virus ecology with the aim of using taxonomically- and functionally-restricted prokaryotes to develop model host-virus systems for understanding the influence of viruses in carbon and nitrogen soil biogeochemistry.

Graeme Nicol
Group Leader / CNRS Director of Research
graeme.nicol@cnrs.fr

Publications

  • 98. Bachtsevani, E., Kolovou, M., Papadopoulou, E.S., Karpouzas, D.G., Nicol, G.W., Hazard, C. (2025) Single species in vitro assays with nitrifying bacteria and archaea for assessing the toxicity of pesticides on soil microorganisms. Environmental Science and Technology. In press.
  • 97. Lee, S., Nicol, G.W., Hazard, C. (2025) Soil pH influences the composition of bacteriophage communities infecting individual hosts. Soil Biology and Biochemistry. 205: 109780.
  • 96. Yao, B.-M., Nicol., G.W., Shi, Y., Hazard, C., Zhang, Z.-M., Zhang, L., Han, L.-L., He, F., Liu, S.-Y., Sun, G.-X., Ge, Y., Chen, B.-D., Shen, C.-C., Li, C.-H., Zhang, L.-M. (2025) Vegetation dominantly shapes the elevational patterns of archaeal and protistan communities and their ecological functions in the Hengduan Mountains, Tibetan Plateau. Soil Biology and Biochemistry. 205: 109780.
  • 95. Guigard, L., 21 authors, Nicol., G.W., 8 authors, Shade, A. (2025) The connections of climate change with microbial ecology and their consequences for ecosystem, human, and plant health. Journal of Applied Microbiology. 136: lxaf168.
  • 94. Hazard, C., Anantharaman, K., Hillary, L.S., Neri, U., Roux, S., Trubl, G., Williamson, K., Pett-Ridge, J., Nicol, G.W., Emerson, J.B. (2025) Beneath the surface: Unsolved questions in soil virus ecology. Soil Biology and Biochemistry. 205: 109780.
  • 93. Sieradzki, E.T.,  Michael Allen, G., Kimbrel, J.A., Nicol., G.W., Hazard, C., Nuccio, E., Blazewicz, S.J., Pett-Ridge, J., Trubl, G. (2025). Soil Biology and Biochemistry. 205: 109791.
  • 92. Cai, Y.J., Zhang, H.-Y., Hu, X.-R., Yang, Y.-C., Hazard, C., Nicol, G.W., He, J.-Z., Shen, J.-P., He, Z.-Y., Zhang, L., Znag, J.-H., Lui, H., Zhang, S., Chen, Z. (2025) Millimeter-scale niche differentiation of N-cycling microorganisms across the soil-water interface has implications for N2O emissions from wetlands. The ISME Journal. 19: wraf062.
  • 91. Lee., S., Hazard, C., Nicol, G.W. (2024) Activity of novel virus families infecting soil nitrifiers is concomitant with host niche differentiation. The ISME Journal. 18: wrae205.
  • 90. Wang, X., Wu, M., Wei, Z., Hazard, C., Nicol, G.W., Zhao, H., Liu, B., Zhang, J., Shan, J., Yan, X. (2024) Investigating drivers of free-living diazotroph activity in paddy soils across China. Soil Biology and Biochemistry. 199: 109601.
  • 89. Lehtovirta-Morley, L.E., Ge, C., Ross, J., Yao., H., Hazard, C., Gubry-Rangin, C., Prosser, J.I., Nicol, G.W. (2024) Nitrosotalea devaniterrae gen. nov., sp. nov., and Nitrosotalea sinensis sp. nov., two acidophilic ammonia oxidising archaea isolated from acidic soil, and proposal of the new order Nitrosotaleales ord. nov. within the class Nitrososphaeria of the phylum Nitrososphaerota. International Journal on Systematics and Evolutionary Microbiology. 74: 006387.88. Ni, H., Leung, P.M., Daebeler, A., Guo, J., Hu, S., Cook, P., Nicol, G.W., Daims, H., Greening, C. (2023) Nitrification in acidic and alkaline environments. Essays in Biochemistry. 67: 753–768.
  • 87. Lee, S., Sieradzki, E.T., Hazard, C., Nicol, G.W. (2023) Propagation of viral genomes by replicating ammonia-oxidising archaea during soil nitrification. ISME Journal. 17: 309-314.
  • 86. Papadopoulou, E.S., Bachtsevani, E., Papazlatani, C.V., Rousidou, C., Brouziotis, A., Lampronikou, E., Tsiknia, M., Vasileiadis, S., Ipsilantis, I., Menkissoglu-Spiroudi, U., Ehaliotis,C., Philippot, L., Nicol, G.W., Karpouzas, D.G. (2022) The Effects of Quinone Imine, a New Potent Nitrification Inhibitor, Dicyandiamide, and Nitrapyrin on Target and Off-Target Soil Microbiota. Microbiology Spectrum. e02403-21
  • 85. Cai, Y.J., Liu, Z.A., Zhang, S., Liu, H., Nicol, G.W., Chen, Z. (2022) Microbial community structure is stratified at the millimeter-scale across the soil–water interface. ISME Communications 2: 1-4.
  • 84. Lee, S., Sorensen, J.W., Walker, R.L., Emerson, J.B., Nicol, G.W., Hazard, C. (2022) Soil pH influences the structure of virus communities at local and global scales. Soil Biology and Biochemistry. 166: 108569.
  • 83. Jung, M.-Y., Sedlacek, C.J., Kits, K.D., Mueller, A.J., Rhee, S.-K., Hink, L., Nicol, G.W., Bayer, B., Lehtovirta-Morley, L.E., Wright, C.L., de la Torre, J.R., Herbold, C.W., Pjevac, P., Daims, H., Wagner. M. (2022) Ammonia-oxidizing archaea possess a wide range of cellular ammonia affinities. The ISME Journal. 16: 272-283.
  • 82. Bachtsevani, E., Papazlatani, C.V., Rousidou, C., Lampronikou, E., Menkissoglu-Spiroudi, U., Nicol, G.W., Karpouzas, D.G., Papadopoulou, E.S. (2021) Effects of the nitrification inhibitor 3, 4-dimethylpyrazole phosphate (DMPP) on the activity and diversity of the soil microbial community under contrasting soil pH. Biology and Fertility of Soils. 57: 1117-1135.
  • 81. Lee, S., Sieradzki, E.S., Nicolas, A.M., Walker, R.L., Firestone, M.K., Hazard, C., Nicol, G.W. (2021) Methane-derived carbon flow through host-virus trophic networks in soil. Proceedings of the National Academy of Sciences USA. 118: e2105124118.
  • 80. de Vries, F.T., Thion, C., Bahn, M., Pinto, B., Cécillon, S., Frey, B., Grant, H., Nicol, G.W., Wanek, W., Prosser, J.I., Bardgett, R.D. (2021) Glacier forelands reveal fundamental plant and microbial controls on short‐term ecosystem nitrogen retention. Journal of Ecology. 109: 3710-3723.
  • 79. Finn, D.R., Bergk-Pinto, B., Hazard, C., Nicol, G.W., Tebbe, C.C., TM Vogel (2021) Functional trait relationships demonstrate life strategies in terrestrial prokaryotes. FEMS Microbiology Ecology. 97: fiab068.
  • 78. Hazard, C., Prosser, J.I., Nicol, G.W. (2021) Use and abuse of potential rates in soil microbiology. Soil Biology and Biochemistry. 157: 108242.
  • 77. Finn, D.R., Lee, S., Lanzén, A., Bertrand, M., Nicol, G.W., Hazard, C. (2021) Cropping systems impact changes in soil fungal, but not prokaryote, alpha-diversity and community composition stability over a growing season in a long-term field trial. FEMS Microbiology Ecology 97: fiab136.
  • 76. Norton, G.J., Travis, T., Ruang-Areerate, P., Nicol, G.W., Adeosun, A.A., Hossain, M., Islam, M.R., Douglas, A., and Price, A.H. (2021) Genetic loci regulating cadmium content in rice grains. Euphytica. 217: 1-16
  • 75. Stein, L.Y. Klotz, M.G., Lancaster, K.M., Nicol, G.W., Qin, W., Schleper, C., Stahl, D., Ward, B.B., Yoon, S. (2020) Comment on “A Critical Review on Nitrous Oxide Production by Ammonia-Oxidizing Archaea”. Environmental Science & Technology. 55: 797-798.
  • 74. Aigle, A., Gubry‐Rangin, C., Thion, C., Estera‐Molina, K.Y., Richmond, H., Pett‐Ridge, J., Firestone, M.K., Nicol, G.W., and Prosser, J.I. (2020) Experimental testing of hypotheses for temperature‐and pH‐based niche specialization of ammonia oxidizing archaea and bacteria. Environmental Microbiology. 22: 4032-4045.
  • 73. Papadopoulou, E.S., Bachtsevani, E., Lampronikou, E., Adamou, E., Katsaouni, A., Vasileiadis, S., Thion, C., Menkissoglu-Spiroudi, U., Nicol, G.W., Karpouzas, D.G. (2020) Comparison of Novel and Established Nitrification Inhibitors Relevant to Agriculture on Soil Ammonia-and Nitrite-Oxidizing Isolates. Frontiers in Microbiology. 10: 1571.
  • 72. Prosser, J.I., Hink, L., Gubry-Rangin, C., and Nicol, G.W. (2020)Nitrous oxide production by ammonia oxidisers: community composition matters. Global Change Biology. 26: 103-118.
  • 71. Nicol, G.W., Hink, L, Gubry-Rangin, C., Prosser, J.I., and Lehtovirta-Morley, L.E. (2019) The genome sequence of “Candidatus Nitrosocosmicus franklandus” C13, a terrestrial ammonia oxidising archaeon with a high tolerance to ammonium. Microbiology Resource Announcements. 40: e00435-19.
  • 70. Wang, Z., Cao, Y., Zhu-Barker, X., Nicol, G.W., Wright, A.L., Jia, Z., and Jiang, X. (2019) Comammox Nitrospira clade B contributes to nitrification in soil. Soil Biology and Biochemistry. 135: 392-395.
  • 69. Blame it on the metabolite: 3,5-dichloraniline rather than the parent compound is responsible for decreasing diversity and function of soil microorganisms. (2018) Vasileiadis, S., Puglisi, E., Papadopoulou, E. S., Pertile, G., Suciu N., Pappolla, R. A., Tourna, M., Karas, P. A., Papadimitriou, F., Kasiotakis, A., Ipsilanti, N., Ferrarini, A., Sułowicz, S., Fornasier, F., Menkissoglu-Spiroudi, U., Nicol, G. W., Trevisan, M., and Karpouzas D. G. Applied and Environmental Microbiology. 84: e01536-18.
  • 68. Lu, X., Nicol, G.W., and Neufeld, J.D. (2018). Differential responses of soil ammonia-oxidizing archaea and bacteria to temperature and depth under two different land uses in Ontario. Soil Biology and Biochemistry. 120: 272-282.
  • 67. Stein, L.Y., and Nicol, G.W. (2018). Nitrification. eLS. 10.1002/9780470015902.a0021154.pub2
  • 66. Hink, L., Gubry-Rangin, C., Nicol, G.W., and Prosser, J.I. (2018). The consequences of niche and physiological differentiation of archaeal and bacterial ammonia oxidisers for nitrous oxide emissions. The ISME Journal. 12: 1084–1093.
  • 65. Li, Y., Chapman, S.J., Nicol, G.W., and Yao, H. (2018) Nitrification and nitrifiers in acidic soils. Soil Biology and Biochemistry 116: 290–301.
  • 64. Nicol, G.W. (2017) Archaea and the Nitrogen Cycle. Microbiology Today. 44:106-109.
  • 63. Hink, L., Lycus, P., Gubry‐Rangin, C., Frostegård, A., Nicol, G.W., Prosser, J.I., Bakken, L.R. (2017) Kinetics of NH3‐oxidation, NO‐turnover, N2O‐production and electron flow during oxygen depletion in model bacterial and archaeal ammonia oxidisers. Environmental Microbiology. 19: 4882-4896.
  • 62. Herbold, C.W., Lehtovirta‐Morley, L.E., Jung, M.-Y., Jehmlich, N., Hausmann, B., Han, P., Loy, A., Pester, M., Sayavedra‐Soto, L.A., Rhee, S.-K., Prosser, J.I., Nicol, G.W., Wagner, M., Gubry‐Rangin, C. (2017) Ammonia‐oxidising archaea living at low pH: Insights from comparative genomics. Environmental Microbiology. 19: 4939-4952.
  • 61. Nacke, H., Schöning, I., Schindler, M., Schrumpf, M., Daniel, R., Nicol, G.W., and Prosser, J.I. (2017) Links between seawater flooding, soil ammonia oxidiser communities and their response to changes in salinity. FEMS Microbiology Ecology. 93: fix144.
  • 60. Elling, F.J., Könneke, M., Nicol, G.W., Stieglmeier, M., Bayer, B., Spieck, E., de la Torre, J.R., Becker, K.W., Thomm, M., Prosser, J.I., Herndl, G.J., Schleper, C. and Hinrichs, K.-U. (2017) Chemotaxonomic characterization of the thaumarchaeal lipidome. Environmental Microbiology. 19: 2681-2700.
  • 59. Hink, L., Nicol, G.W., and Prosser, J.I. (2017). Archaea produce lower yields of N2O than bacteria during aerobic ammonia oxidation in soil. Environmental Microbiology. 19: 4829-4837.
  • 58. Gubry-Rangin, C., Novotnik, B., Mandič-Mulec, I., Nicol, G.W., andProsser, J.I. (2017) Temperature responses of soil ammonia-oxidising archaea depend on pH. Soil Biology and Biochemistry. 106: 61-68.
  • 57. Lehtovirta-Morley, L.E., Sayavedra-Soto, L.A., Gallois, N., Schouten, S., Stein, L.Y., Prosser, J.I., and Nicol, G.W. (2016) Identifying potential mechanisms enabling acidophily in the ammonia-oxidising archaeon ‘Candidatus Nitrosotalea devanaterra’. Applied and Environmental Microbiology. 82: 2608-2619.
  • 56. Bao, Q., Huang, Y., Wang, F., Nie, S., Nicol, G.W., Yao, H., and Ding, L. (2016) Effect of nitrogen fertilizer and/or rice straw amendment on methanogenic archaeal communities and methane production from a rice paddy soil. Applied Microbiology and Biotechnology. 100: 5989–5998.
  • 55. Lehtovirta-Morley, L.E., Ross, J., Hink, L, Weber, E.B., Gubry-Rangin, C., Thion, C., Prosser, J.I., and Nicol, G.W. (2016) Isolation of ‘Candidatus Nitrosocosmicus franklandus’, a novel ureolytic soil archaeal ammonia oxidiser with tolerance to high ammonia concentration. FEMS Microbiology Ecology. 92: fiw057.
  • 54. Nicol, G.W., and Prosser, J.I. (2016). Ecology of Archaea. Oxford Bibliographies. Oxford University Press. DOI: 10.1093/obo/9780199363445-0041.
  • 53. Prosser, J.I. and Nicol, G.W. (2016) Candidatus Nitrosotaleales. Bergey’s Manual of Systematics of Archaea and Bacteria. Editor Whitman, P.W.B. Wiley-Blackwell.
  • 52. Prosser, J.I. and Nicol, G.W. (2016) Candidatus Nitrosotaleaceae. Bergey’s Manual of Systematics of Archaea and Bacteria. Editor Whitman, P.W.B. Wiley-Blackwell.
  • 51. Prosser, J.I. and Nicol, G.W. (2016) Candidatus Nitrosotalea. Bergey’s Manual of Systematics of Archaea and Bacteria. Editor Whitman, P.W.B. Wiley-Blackwell.
  • 50. Oton, E.V., Quince, C., Nicol, G.W., Prosser, J.I. and Gubry-Rangin, C. (2015) Phylogenetic congruence and ecological coherence in terrestrial Thaumarchaeota. The ISME Journal. 10: 85–96.
  • 49. Stempfhuber, B.,  Engel, M., Fischer, D., Neskovic-Prit, G., Wubet, T., Schöning, I., Gubry-Rangin, C.,  Kublik, S., Schloter-Hai, B., Rattei, T., Welzl, G., Nicol, G.W., Schrumpf, M., Buscot, F., Prosser, J.I., and Schloter., M. (2015) pH as a driver for ammonia-oxidizing archaea in forest soils. Microbial Ecology. 69: 879-883.
  • 48. Lehtovirta-Morley, L.E., Ge, C., Ross, J., Yao, H., Nicol, G.W., and Prosser, J.I. (2014) Characterisation of terrestrial acidophilic archaeal ammonia oxidisers and their inhibition and stimulation by organic compounds. FEMS Microbiology Ecology. 89: 442-452.
  • 47. Bartram, A.K., Jiang, X., Lynch, M.D.J., Masella, A.P., Nicol, G.W., Dushoff, J., and Neufeld, J.D. (2014) Exploring links between pH and bacterial community composition in soils from the Craibstone Experimental Farm. FEMS Microbiology Ecology. 87: 403-415.
  • 46. Yao, H., Campbell, C.D., Chapman, S.J., Freitag, T.E., Nicol, G.W., and Singh, B.K. (2013) Multi-factorial drivers of ammonia oxidizer communities: evidence from a national soil survey. Environmental Microbiology. 15: 2545-2556.
  • 45. Lehtovirta-Morley, L.E., Verhamme, D.T., Nicol, G.W., and Prosser, J.I. (2013) Effect of nitrification inhibitors on the growth and activity of Nitrosotalea devanaterra in culture and soil. Soil Biology and Biochemistry. 62: 129-133.
  • 44. Ruyters, S., Nicol, G.W., Prosser, J.I., Lievens, B., and Smolders, E. (2013) Activity of the ammonia oxidising bacteria induces zinc tolerance development of the ammonia oxidising community in soil: a stable isotope probing study. Soil Biology and Biochemistry. 58: 244-247.
  • 43. Prosser, J.I., and Nicol, G.W. (2012). Archaeal and bacterial ammonia oxidisers in soil: the quest for niche specialisation and differentation. Trends in Microbiology. 20: 523-531.
  • 42. Mayor, D.J, Thornton, B., Hay, S., Zuur, A.F., Nicol, G.W., McWilliam, J.M., and Witte, U.F.M. (2012) Resource quality affects carbon cycling in deep-sea sediments. The ISME Journal. 6: 1740-1748.
  • 41. Levicnik Hofferle, S., Nicol, G.W., Ausec, L., Mandic-Mulec, I., and Prosser, J.I. (2012) Stimulation of thaumarchaeal ammonia oxidation by mineralised organic nitrogen, but not inorganic nitrogen. FEMS Microbiology Ecology. 80: 114-123.
  • 40. Gubry-Rangin, C., Hai, B., Quince, C., Engel, M., Thomson, B.C., James, P., Schloter, M., Griffiths, R.I., Prosser, J.I., and Nicol, G.W. (2011) Niche specialization of terrestrial archaeal ammonia oxidizers. Proceedings of the National Academy of Sciences USA. 108: 21206-2111.
  • 39. Lehtovirta-Morley, L.E., Stoecker, K., Vilcinskas, A., Prosser, J.I., and Nicol, G.W. (2011) Cultivation of an obligate acidophilic ammonia oxidiser from a nitrifying acid soil. Proceedings of the National Academy of Sciences USA. 108: 15892-15897.
  • 38. Merbt, S., Stahl, D.A., Casamayor, E.O., Eugenia, M, Nicol, G.W., and Prosser, J.I. (2011) Differential photoinhibition of bacterial and archaeal ammonia oxidation. FEMS Microbiology Letters. 327: 41-46.
  • 37. Huaiying, Y., Gao, Y, Nicol, G.W., Campbell, C.D., Prosser, J.I., Zhang, L., Han, W., and Singh, B.K. (2011) Links between ammonia oxidizer community structure, abundance and nitrification potential in acidic soils. Applied and Environmental Microbiology. 77: 4618-4625.
  • 36. Stein, L.Y., and Nicol, G.W. (2011) Grand challenges in terrestrial microbiology. Frontiers in Microbiology. 2: 1-2.
  • 35. Nicol, G.W., and Prosser, J.I. (2011) Strategies to determine diversity, growth and activity of ammonia oxidising archaea in soil. Methods in Enzymology. 496: 3-34.
  • 34. Verhamme, D.T., Prosser, J.I., and Nicol, G.W. (2011) Ammonia concentration determines differential growth of ammonia-oxidising archaea and bacteria in soil microcosms. The ISME Journal. 5: 1067-1071.
  • 33. Offre, P. O., Nicol, G.W., and Prosser, J.I. (2010) Autotrophic community profiling and quantification of putative autotrophic thuamarchaeal communities in environmental samples. Environmental Microbiology Reports. 3: 245-253.
  • 32. Zhang, L., Offre, P.O., He, J.-Z., Verhamme, D.T., Nicol, G.W., and Prosser, J.I. (2010) Autotrophic ammonia oxidation by soil thaumarchaea. Proceedings of the National Academy of Sciences USA. 107: 17240-17245.
  • 31. Stopnisek, N., Gubry-Rangin, C., Hofferle, S., Nicol, G.W., Mandic-Mulec, I., and Prosser, J.I. (2010) Thaumarchaeal ammonia oxidation in an acidic forest peat soil is not influenced by ammonia amendment. Applied and Environmental Microbiology. 76: 7626-7634.
  • 30. Gubry-Rangin, C., Nicol, G.W., and Prosser, J.I. (2010) Archaea rather than bacteria control nitrification in two agricultural acidic soils. FEMS Microbiology Ecology. 74: 566-574.
  • 29. Hofferle, S., Nicol, G.W., Pal, G.W., Hacin, J., Prosser, J.I., and Mandic-Mulec, I. (2010) Nature of the ammonium supply is selective for ammonia-oxidising archaea and bacteria in a wetland soil vertical profile. FEMS Microbiology Ecology. 74: 302-315.
  • 28. Peterse, F., Nicol, G.W., Schouten, S., and Sinninghe Damste, J.S. (2010) Influence of soil pH on the abundance and distribution of core and intact polar lipid-derived branched GDGTs in soil. Organic Geochemistry. 41: 1171-1175.
  • 27. Schleper, C. and Nicol, G.W. (2010) Ammonia Oxidizing Archaea: Genomes, Physiology and Ecology. Advances in Microbial Physiology. 57: 1-41.
  • 26. Coci, M., Nicol, G.W., Pilloni, G.N., Schmid, M., Kamst-van Agterveld, M.P., Bodelier, P.L.E., and Laanbroek, H.J. (2010) Quantitative assessment of ammonia-oxidizing bacterial communities in the epiphyton of submerged macrophytes in shallow lakes. Applied and Environmental Microbiology. 76: 1813-1821.
  • 25. Ross, J.L., Ivanova, E.S., Spiridonov, S.E., Waeyenberge, L., Moens, M., Nicol, G.W., and Wilson, M. (2010) Molecular phylogeny of slug-parasitic nematodes inferred from 18S rRNA gene sequences. Molecular Phylogenetics and Evolution. 55: 738-743.
  • 24. Nicol, G.W., Leininger, S., and Schleper, C. (2010) Distribution and Activity of Ammonia-Oxidising Archaea in Natural Environments. Nitrification. Editors Ward, B.B., Klotz, M.G., and Arp, D.J. ASM Press.
  • 23. Bartossek, R., Nicol, G.W., Lanzen, A., Klenk, H.-P., and Schleper, C. (2010) Homologues of Nitrite Reductases in Ammonia-Oxidizing Archaea: Diversity and Genomic Context. Environmental Microbiology. 12: 1075-1088.
  • 22. Baker, K.L., Marshall, S., Nicol, G.W., Campbell, C.D., Nicollier, G., Ricketts, D., Killham, K., and Prosser, J.I. (2010) Degradation of metalaxyl-M in contrasting soils is influenced more by differences in physicochemical characteristics than in microbial community composition after re-inoculation of sterilised soils. Soil Biology and Biochemistry. 42: 1123-1131.
  • 21. Baker, K.L., Langenheder, S., Nicol, G.W., Ricketts, D., Killham, K.S., Campbell, C.D. and Prosser, J.I. (2009) Environmental and spatial characterisation of bacterial community composition in soil to inform sampling strategies. Soil Biology and Biochemistry. 41: 2292-2298.
  • 20. Lehtovirta, L.E., Prosser, J.I., and Nicol, G.W. (2009) Soil pH regulates the abundance and diversity of Group 1.1c Crenarchaeota. FEMS Microbiology Ecology. 70: 367-376.
  • 19. Offre, P., Prosser, J.I., and Nicol, G.W. (2009) Growth of ammonia-oxidizing archaea in soil microcosms is inhibited by acetylene. FEMS Microbiology Ecology. 70: 99-108.
  • 18. Watkins, A., Nicol, G.W., and Shaw, L.J. (2009) Use of an artificial root to examine the influence of 8-hydroxyquinoline on soil microbial activity and bacterial community structure. Soil Biology and Biochemistry. 41: 580-585.
  • 17. Prosser, J.I. and Nicol, G.W. (2008) Relative contributions of archaea and bacteria to aerobic ammonia oxidation in the environment. Environmental Microbiology.10: 2931-2941.
  • 16. Nicol, G.W., Leininger, S., Schleper, C., and Prosser, J.I. (2008) The influence of soil pH on the diversity, abundance and transcriptional activity of ammonia oxidising archaea and bacteria. Environmental Microbiology. 10: 2966-2978.
  • 15. Tourna, M., Freitag, T.E., Nicol, G.W., and Prosser, J.I. (2008) Growth, activity and temperature responses of ammonia-oxidizing archaea and bacteria in soil microcosms. Environmental Microbiology. 10: 1357-1364.
  • 14. Le Roux, X., Poly, F., Currey, P., Commeaux, C., Hai, B., Nicol, G.W., Prosser, J.I., Schloter, M., Attard, E.O., and Klumpp, K. (2008). Effects of aboveground grazing on coupling among nitrifier activity, abundance and community structure. The ISME Journal. 2: 221?232.
  • 13. Watson-Craik, I., Nitayapat, N., and Nicol, G.W. (2008) Toxicity, fate and impacts of phenolic compounds in anaerobic municipal solid waste. Management of Pollutant Emission from Landfills and Sludge. Editors Pawlowska, M. and Pawlowski, L. Taylor and Francis. pp. 65-73.
  • 12. Aitkenhead, M., Pickles, B., Norton, G., Macmillan, K., and Nicol G.W. (2007) Skill-based optimised aiming in darts. Mathematics Today. 2: 212-214.
  • 11. Nicol, G.W., Campbell, C.D., Chapman S.J., and Prosser, J.I. (2007) Afforestation of moorland leads to changes in crenarchaeal community structure. FEMS Microbiology Ecology. 60: 51-59.
  • 10. Leininger, S., Urich, T., Schloter, M., Schwark, L., Qi, J., Nicol, G.W., Prosser, J.I., Schuster, S.C., and Schleper C. (2006) Archaea predominate among ammonia-oxidizing prokaryotes in soils. Nature. 442: 806-809.
  • 9.    Nicol, G.W., and Schleper, C. (2006) Ammonia-oxidising Crenarchaeota: important players in the nitrogen cycle? Trends in Microbiology.14: 207-212.
  • 8.    Shaw, L.J., Nicol, G.W., Smith, Z., Fear, J., Prosser, J.I., and Baggs, E.M. (2006) Nitrosospira spp. can produce nitrous oxide via a nitrifier denitrification pathway. Environmental Microbiology. 8: 214-222
  • 7.    Nicol, G.W., Tscherko, D., Chang, L., Hammesfahr, U., and Prosser, J.I. (2006) Crenarchaeal community assembly and microdiversity in developing soils at two sites associated with deglaciation. Environmental Microbiology. 8: 1382-1393.
  • 6.    Nicol, G.W., Tscherko, D., Embley, T.M., and Prosser, J.I. (2005) Primary succession of soil Crenarchaeota across a receding glacier foreland. Environmental Microbiology. 7: 337-347.
  • 5.    Rangel-Castro, J.I., Killham, K., Ostle, N., Nicol, G.W., Anderson, I.C., and Scrimgeour, C.M., et al. (2005) Stable isotope probing analysis of the influence of liming on root exudate utilization by soil microorganisms. Environmental Microbiology. 7: 828-838.
  • 4.    Nicol, G.W., Webster, G., Glover, L.A., and Prosser, J.I. (2004) Differential response of archaeal and bacterial communities to nitrogen inputs and pH changes in upland pasture rhizosphere soil. Environmental Microbiology.6: 861-867.
  • 3.    Nicol, G.W., Glover, L.A., and Prosser, J.I. (2003) The impact of grassland management on archaeal community structure in upland pasture rhizosphere soil. Environmental Microbiology.5: 152-162.
  • 2.    Nicol, G.W., Glover, L.A., and Prosser, J.I. (2003) Molecular analysis of methanogenic archaeal communities in managed and natural upland pasture soils. Global Change Biology. 9: 1451-1457.
  • 1.    Nicol, G.W., Glover, L.A., and Prosser, J.I. (2003) Spatial Analysis of Archaeal Community Structure in Grassland Soil. Applied and Environmental Microbiology. 69: 7420-7429.