Nitrification in soil

Nitrogen in Agricultural Soils

Volumn , Issue , 2015, Pages 253-288

  Schmidt, Edwin L ^a  

^a UNIVERSITY OF MINNESOTA   (United States)

Author keywords

Alkaline soils; Nitrification; Nitrogenous organic substances; Nutrient cycling; Quality of water; Waste disposal

Indexed keywords

EID: 85102328022     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.2134/agronmonogr22.c7     Document Type: Chapter

References (146)

1. Aleem, M. I. H. 1965. Generation of reducing power in chemosynthesis. II. Energy-linked reduction of pyridine nucleotides in the chemoautotroph, Nitrosomonas europaea, Bio-chim. Biophys. Acta 113:216-224.
2. Aleem, M. I. H., H. Lees, and D. J. D. Nicholas. 1963. Adenosine triphosphate-dependent reduction of nicotinamide adenine dinucleotide by ferro-cytochrome C in chemo-autotrophic bacteria. Nature (London) 200:759-761.
3. Alexander, M., and F. E. Clark. 1965. Nitrifying bacteria, p. 1477-1486. In C. A. Black et al. (ed.) Methods of soil analysis. Am. Soc. Agron., Madison, Wis.
4. Anderson, O. E., and F. C. Boswell. 1964. The influence of low temperature and various concentrations of ammonium nitrate on nitrification in acid soils. Soil Sci. Soc. Am. Proc. 28:525-532.
5. Atlas, R. M., D. Pramer, and R. Bartha. 1978. Assessment of pesticide effects on non-target soil microorganisms. Soil Biol. Biochem. 10:231-239.
6. Barritt, N. W. 1933. The nitrification process in soils and biological filters. Ann. Appl. Biol. 20:165-184.
7. Beek, J., and M. J. Frissel. 1973. Simulation of nitrogen behaviour in soils. Centre for Agricultural Publication and Documentation, Wageningen, The Netherlands.
8. Belser, L. W. 1977. Nitrate reduction to nitrite, a possible source of nitrite for growth of nitrite-oxidizing bacteria. Appl. Environ. Microbiol. 34:403-410.
9. Belser, L. W. 1979. Population ecology of nitrifying bacteria. Ann. Res. Microbiol. 33:309-333.
10. Belser, L. W., and E. L. Schmidt. 1978a. Diversity in the ammonia oxidizing nitrifier population of a soil. Appl. Environ. Microbiol. 36:584-588.
11. Belser, L. W., and E. L. Schmidt. 1978b. Serological diversity within a terrestrial ammonia-oxidizing population. Appl. Environ. Microbiol. 36:589-593.
12. Belser, L. W., and E. L. Schmidt. 1978c. Nitrification in soils, p. 348-351. In D. Schlessinger (ed.) Microbiology 1978. Am. Soc. Microbiol. Washington, D.C.
13. Belser, L. W., and E. L. Schmidt. 1980. Growth and oxidation kinetics of three genera of ammonia oxidizers. FEMS Microbiol. Lett. 7:213-216.
14. Bock, E. 1976. Growth of Nitrobacter in the presence of organic matter. II. Chemoorgano-trophic growth of Nitrobacter agilis. Arch. Microbiol. 108:305-312.
15. Bock, E. 1978. Lithoautotrophic and chemoautotrophic growth of nitrifying bacteria, p. 310-314. In D. Schlessinger (ed.) Microbiology 1978. Am. Soc. Microbiol. Washington, D.C.
16. Bohlool, B. B., E. L. Schmidt, and C. Beasley. 1977. Nitrification in the intertidal zone: influence of effluent type and effect of tannin on nitrifiers. Appl. Environ. Microbiol. 34: 523-528.
17. Brar, S. S., and J. Giddens. 1968. Inhibition of nitrification in Bladen grassland soil. Soil Sci. Soc. Am. Proc. 32:821-823.
18. Bremner, J. M., and L. G. Bundy. 1974. Inhibition of nitrification in soils by volatile sulfur compounds. Soil Biol. Biochem. 6:161-165.
19. Bremner, J. M., and A. M. Blackmer. 1978. Nitrous oxide: emission from soils during nitrification of fertilizer nitrogen. Science 199:295-296.
20. Bremner, J. M., A. M. Blackmer, and L. G. Bundy. 1978. Problems in use of nitrapyrin to inhibit nitrification in soils. Soil Biol. Biochem. 10:441-442.
21. Brock, T. D. 1979. Biology of microorganisms. 3rd ed. Prentice-Hall, Englewood Cliffs, N. J.
22. Bundy, L. G., and J. M. Bremner. 1973. Inhibition of nitrification in soils. Soil Sci. Soc. Am. Proc. 37:396-398.
23. Bundy, L. G., and J. M. Bremner. 1974. Effects of nitrification inhibitors on transformations of urea nitrogen in soils. Soil Biol. Biochem. 6:369-376.
24. Campbell, N. E. R., and M. I. H. Aleem. 1965a. The effect of 2-chloro, 6-(trichloromethyl) pyridine on the chemoautotrophic metabolism of nitrifying bacteria. I. Ammonia and hy-droxylamine oxidation by Nitrosomonas. Antonie van Leeuwenhoek; J. Microbiol. Serol. 31:124-136.
25. Campbell, N. E. R., and M. I. H. Aleem. 1965b. The effect of 2-chloro, 6-(trichloromethyl) pyridine on the chemoautotrophic metabolism of nitrifying bacteria. II. Nitrite oxidation by Nitrobacter. Antonie van Leeuwenhoek; J. Microbiol. Serol. 31:137-144.
26. Cassens, R. G., T. Ito, M. Lee, and D. Buege. 1978. The use of nitrite in meat. Bioscience 28: 633-637.
27. Chapman, H. D., and G. F. Liebig. 1952. Field and laboratory studies of nitrite accumulation in soils. Soil Sci. Soc. Am. Proc. 16:276-282.
28. Chase, F. E., C. T. Corke, and J. B. Robinson. 1968. Nitrifying bacteria in soils, p. 593-611. In T. R. G. Gray and D. Parkinson (ed.) The ecology of soil bacteria. Liverpool University Press, Liverpool.
29. Chiang, C, J. Sinnaeve, and G. Dubuisson. 1972. Ecologie microbienne des sols du Maroc 1. Fluctuations saisonnieres. (In French). Ann. Inst. Pasteur, Paris 122:1171-1182.
30. Clark, C, and E. L. Schmidt. 1966. Effect of mixed culture on Nitrosomonas europaea simulated by uptake and utilization of pyruvate. J. Bacteriol. 91:367-373.
31. Clark, C, and E. L. Schmidt. 1967. Growth response of Nitrosomonas europaea to amino acids. J. Bacteriol. 93:1302-1308.
32. Clark, F., and E. A. Paul. 1970. The microflora of grassland. Adv. Agron. 22:375-435.
33. Cochran, W. G. 1950. Estimation of bacterial densities by means of the most probable number. Biometrics 6:105-116.
34. Crutzen, P. J. 1970. The influence of nitrogen oxides on the atmospheric ozone content. Q. J. Roy. Meterol. Soc. 96:320-325.
35. Dalton, H. 1977. Ammonia oxidation by the methane oxidising bacterium Methylococcus capsulatus strain Bath. Arch. Microbiol. 114:273-279.
36. Delwiche, C. C, and M. S. Finstein. 1965. Carbon and energy sources for the nitrifying autotroph. Nitrobacter. J. Bacteriol. 90:102-107.
37. Dommergues, Y. 1977. Biologie du sol. Presses Universitaire de France, Paris.
38. Domsch, K. H., and W. Paul. 1974. Simulation and experimental analysis of the influence of herbicides on soil nitrification. Arch. Microbiol. 97:283-301.
39. Elkins, J. W., S. C. Wofsy, M. B. McElroy, C. E. Kolb, and W. A. Kaplan. 1978. Aquatic sources and sinks for nitrous oxide. Nature (London) 275:602-606.
40. Engel, M. S., and M. Alexander. 1958. Growth and autotrophic metabolism of Nitrosomonas europaea. J. Bacteriol. 76:217-222.
41. Erickson, R. H., A. B. Hooper, and K. R. Terry. 1972. Solubilization and purification of cytochrome a, from Nitrosomonas. Biochim. Biophys. Acta 283:155-166.
42. Eylar, O. R., Jr., and E. L. Schmidt. 1959. A survey of heterotrophic microorganisms from soil for ability to form nitrite and nitrate. J. Gen. Microbiol. 20:473-481.
43. Falcone, A. B., A. L. Shug, and D. J. D. Nicholas. 1963. Some properties of a hydroxylamine oxidase from Nitrosomonas europaea. Biochim. Biophys. Acta 77:199-208.
44. Fliermans, C. B., B. B. Bohlool, and E. L. Schmidt. 1974. Autecological study of the chemo-autotroph Nitrobacter by immunofluorescence. Appl. Microbiol. 27:124-129.
45. Fliermans, C. B., and E. L. Schmidt. 1975. Autoradiography and immunofluorescence combined for autecological study of single cell activity with Nitrobacter as a model system Appl. Microbiol. 30:676-684.
46. Focht, D. D., and W. Verstraete. 1977. Biochemical ecology of nitrification and denitrifica-tion. Adv. Microbiol. Ecol. 1:135-214.
47. Gasser, J. K. R. 1970. Nitrification inhibitors-their occurrence, production and effects of their use on crop yields and composition. Soils Fert. 33:547-554.
48. Goring, C. A. I. 1962a. Control of nitrification by 2-chloro-6-(trichloromethyl) pyridine. Soil Sci. 93:211-218.
49. Goring, C. A. I. 1962b. Control of nitrification of ammonium fertilizers and urea by 2-chloro- 6-(trichloromethyl) pyridine. Soil Sci. 93:431-439.
50. Gundersen, K. 1955. Effects of B-vitamins and amino acids on nitrification. Physiol. Plant. 8:136-141.
51. Harms, H., H. P. Koops, and H. Wehrmann. 1976. An ammonia-oxidizing bacterium, Nitro-sovibrio tenuis nov. gen. nov. sp. Arch. Microbiol. 108:105-111.
52. Hauck, R. D. 1972. Synthetic slow-release fertilizers and fertilizer amendments, p. 633-690. In C. A. I. Goring and J. W. Hamker (ed.) Organic chemicals in the soil environment, Part B. Marcel Dekker, New York.
53. Hofman, T., and H. Lees. 1953. The biochemistry of the nitrifying organisms. 4. The respiration and intermediary metabolism of Nitrosomonas. Biochem. J. 54:579-583.
54. Hooper, A. B. 1968. A nitrite-reducing enzyme from Nitrosomonas europaea. Preliminary characterization with hydroxylamine as electron donor. Biochim. Biophys. Acta 162:49-65.
55. Hooper, A. B. 1978. Nitrogen oxidation and electron transport in ammonia-oxidizing bacteria, p. 299-304. In D. Schlessinger (ed.) Microbiology 1978. Am. Soc. Microbiol. Washington, D.C.
56. Hooper, A. B., and K. R. Terry. 1973. Specific inhibitors of ammonia oxidation in Nitrosomonas. J. Bacteriol. 115:480-485.
57. Huber, D. M., H. L. Warren, D. W. Nelson, and C. Y. Tsai. 1977. Nitrification inhibitors-new tools for food production. Bioscience 27:523-529.
58. Hughes, T. D., and L. F. Welch. 1970. 2-chloro-6-(trichloromethyl) pyridine as a nitrification inhibitor for anhydrous ammonia applied in different seasons. Agron. J. 62:821-824.
59. Hutton, W. E., and C. E. Zobell. 1953. Production of nitrite from ammonia by methane oxidizing bacteria. J. Bact. 65:216-219.
60. Jansson, S. L. 1958. Tracer studies on nitrogen transformation in soil with special attention to mineralization-immobilization relationships. Kungl. Lantbruk. Annaler 24:101-361.
61. Jensen, H. L. 1951. Nitrification of oxime compounds by h eterotrophic bacteria. J. Gen. Microbiol. 5:360-368.
62. Keeney, D. R. 1971. Microbiological aspects of the pollution of fresh water with inorganic nutrients, p. 181-200. In G. Sykes and F. A. Skinner (ed.) Microbiol aspects of pollution. Soc. Appl. Bacteriol. Academic Press, London.
63. Keeney, D. R., and J. M. Bremner. 1967. Determination and isotope-ratio analysis of different forms of nitrogen in soils: 6. Mineralizable nitrogen. Soil Sci. Am. Proc. 31:34-39.
64. Knowles, G., A. L. Downing, and M. J. Barrett. 1965. Determination of kinetic constants for nitrifying bacteria in mixed culture, with the aid of an electronic computer. J. Gen. Microbiol. 38:263-273.
65. Knowles, R. 1978. Common intermediates of nitrifioation and denitrification, and the metabolism of nitrous oxide, p. 367-371. In D. Schlessinger (ed.) Microbiology 1978. Am. Soc. Microbiol., Washington, D.C.
66. 15N dilution technique. Appl. Environ. Microbiol. 35: 853-857.
67. Koops, H. P., H. Harms, and H. Wehrmann. 1976. Isolation of a moderate halophilic ammonia-oxidizing bacterium. Nitrosococcus mobilis nov. sp. Arch. Microbiol. 108:277-282.
68. Laudelout, H., R. Lambert, and M. L. Pham. 1976. Influence du pH et de la pression partielle d’oxygene sur la nitrification. Ann. Microbiol. (Paris). 127A:367-382.
69. Lees, H., and J. R. Simpson. 1957. The biochemistry of the nitrifying organisms. 5. Nitrite oxidation by Nitrobacter. Biochem. J. 65:297-305.
70. Lodhi, M. A. K. 1978. Comparative inhibition of nitrifiers and nitrification in a forest community as a result of the allelopathic nature of various tree species. Am. J. Bot. 65:1135-1137.
71. Mahendrappa, J. K., R. L. Smith, and A. T. Christianson. 1966. Nitrifying organisms affected by climatic region in western United States. Soil Sci. Soc. Am. Proc. 30:60-62.
72. Matulewich, V. A., P. F. Strom, and M. S. Finstein. 1975. Length of incubation for enumerating nitrifying bacteria present in various environments. Appl. Microbiol. 29:265-268.
73. McLaren, A. D., and M. S. Ardakani. 1972. Competition between species during nitrification in soil. Soil Sci. Soc. Am. Proc. 36:602-605.
74. Molina, J. A. E., and A. D. Rovira. 1964. The influence of plant roots on autotrophic nitrifying bacteria. Can. J. Microbiol. 10:249-256.
75. Moore, D. R. E., and J. S. Waid. 1971. The influence of washings of living roots on nitrification. Soil biol. Biochem. 3:69-83.
76. Morrill, L. G., and J. E. Dawson. 1962. Growth rates of nitrifying chemoautotrophs in soil. J. Bacteriol. 83:205-206.
77. Morrill, L. G., and J. E. Dawson. 1967. Patterns observed for the oxidation of ammonium to nitrate by soil organisms. Soil Sci. Soc. Am. Proc. 31:757-760.
78. Munro, P. E. 1966. Inhibition of nitrifiers by grass root extracts. J. Appl. Ecol. 3:231-239.
79. Myers, R. J. K. 1975. Temperature effects on ammonification and nitrification in a tropical soil. Soil Biol. Biochem. 7:83-86.
80. Neal, J. L. 1969. Inhibition of nitrifying bacteria by grass and forb root extracts. Can. J. Microbiol. 15:23-28.
81. Nicholas, D. J. D. 1978. Intermediary metabolism of nitrifying bacteria, with particular reference to nitrogen, carbon, and sulfur compounds, p. 305-309. In D. Schlessing (ed.) Microbiology, 1978. Am. Soc. Microbiol. Washington, D.C.
82. Painter, H. A. 1977. Microbial transformations of inorganic nitrogen. Prog. Water Technol. 8(4/5):3-29.
83. Pancholy, S. K. 1978. Formation of carcinogenic nitrosamines in soils. Soil Biol. Biochem. 10: 27-32.
84. Panganiban, A. T., Jr., T. E. Patt, W. Hart, and R. S. Hanson. 1979. Oxidation of methane in the absence of oxygen in lake water samples. Appl. Environ. Microbiol. 37:303-309.
85. Paul, E. A., and E. L. Schmidt. 1961. Formation of free amino acids in rhizosphere and non-rhizosphere soil. Soil Sci. Soc. Am. Proc. 25:359-362.
86. Powlson, D. S., and D. S. Jenkinson. 1971. Inhibition of nitrification in soil by carbon disul-phide from rubber bunds. Soil Biol. Biochem. 3:267-269.
87. Prasad, R., G. B. Rajale, and B. A. Lakhdive. 1971. Nitrification retarders and slow-release nitrogen fertilizers. Adv. Agron. 23:337-383.
88. Quastel, J. H., and P. G. Scholefield. 1949. Influence of organic nitrogen compounds on nitrification in soil. Nature (London) 164:1068-1072.
89. Quastel, J. H., P. G. Scholefield, and J. W. Stevenson. 1950. Oxidation of pyruvic oxime by soil organisms. Nature (London) 166:940-942.
90. Quastel, J. H., P. G. Scholefield, and J. W. Stevenson. 1952. Oxidation of pyruvic oxime by soil organisms. Biochem. J. 51:278-284.
91. Quayle, J. R., and T. Ferenci. 1978. Evolutionary aspects of autotrophy. Microbiol. Rev. 42: 251-273.
92. Ramakrishna, C, V. R. Rao, and N. Sethunathan. 1978. Nitrification in simulated oxidized surface of a flooded soil amended with carbofuran. Soil biol. Biochem. 10:555-556.
93. Ratnayake, M., and J. L. Audus. 1978. Studies on the effects of herbicides on soil nitrification. II. Pest. Biochem. Physiol. 8:170-185.
94. Rennie, R. J., and E. L. Schmidt. 1977a. Immunofluorescence studies of Nitrobacter populations in soils. Can. J. Microbiol. 23:1011-1017.
95. Rennie, R. J., and E. L. Schmidt. 1977b. Autecological and kinetic analysis of competition between strains of Nitrobacter \n soils. Ecol. Bull. (Stockholm) 25:431-441.
96. Reuss, J. O., and G. S. Innis. 1977. A grassland nitrogen flow simulation model. Ecology 58: 379-388.
97. Rice, E. L. 1964. Inhibition of nitrogen-fixing and nitrifying bacteria by seed plants. Ecology 45:824-837.
98. Rice, E. L., and S. K. Pancholy. 1972. Inhibition of nitrification by climax vegetation. Am. J. Bot. 59:1033-1040.
99. Rice, E. L., and S. K. Pancholy. 1973. Inhibition of nitrification by climax ecosystems. II. Additional evidence and possible role of tannins. Am. J. Bot. 60:691-702.
100. Ridge, E. H. 1976. Studies on soil fumigation-II. Soil Biol. Biochem. 8:249-253.
101. Ritchie, G. A. F., and D. J. D. Nicholas. 1972. Identification of the sources of nitrous oxide produced by oxidation and reductive processes in Nitrosomonas europaea. Biochem. J 126:1181-1191.
102. Robinson, J. B. 1963. Nitrification in a New Zealand grassland soil. Plant Soil 19:173-183.
103. Ross, D. J. 1974. Influence of four pesticides formulations on microbial processes in a New Zealand pasture soil. II. Nitrogen mineralization. N.Z. J. Agric. Res. 17:9-17.
104. Rovira, A. D. 1976. Studies on soil fumigation-I. Soil Biol. Biochem. 8:241-247.
105. Russell, E. W. 1973. Soil conditions and plant growth. 10th ed. Longman, London.
106. Sabey, B. R., L. R. Frederick, and W. V. Bartholomew. 1969. The formation of nitrate from ammonium nitrogen in soils: IV. Use of the delay and maximum rate phases for making quantitative predictions. Soil Sci. Soc. Am. Proc. 33:276-278.
107. Sarathchandra, S. V. 1978a. Nitrification activities of some New Zealand soils and the effect of some clay types on nitrification. N.Z. J. Agric. Res. 21:615-621.
108. Sarathchandra, S. V. 1978b. Nitrification activities and the changes in the populations of nitrifying bacteria in soil perfused at two different H-ion concentrations. Plant Soil 50:99-111.
109. Schmidt, E. L. 1954. Nitrate formation by a soil fungus. Science 119:187-189.
110. Schmidt, E. L. 1956. Soil nitrification and nitrates in waters. Pub. Health Reports 71:497-503.
111. Schmidt, E. L. 1960a. Cultural conditions influencing nitrate formation by Aspergillus flavus. J. Bacteriol. 79:553-557.
112. Schmidt, E. L. 1960b. Nitrate formation by Aspergillus flavus in pure and mixed culture natural environments. Int. Congr. Soil Sci. Trans. 7th (Madison, Wis.) 2:600-607.
113. Schmidt, E. L. 1973. Fluorescent antibody techniques for the study of microbial ecology. Bull. Ecol. Res. Commun. (Stockholm) 17:67-76.
114. Schmidt, E. L. 1974. Quantitative autecological study of microorganisms in soil by immunofluorescence. Soil Sci. 118:141-149.
115. Schmidt, E. L. 1978. Nitrifying microorganisms and their methodology, p. 288-291. In D. Schlessinger (ed.) Microbiology 1978. Am. Soc. Microbiol. Washington, D.C.
116. Schmidt, E. L., and R. L. Starkey. 1951. Soil microorganisms and plant growth substances. II. Transformations of certain B-vitamins in soil. Soil Sci. 71:221-231.
117. Shively, J. M., E. Bock, K. Westphal, and G. C. Cannon. 1977. Icosahedral inclusions (carbo- xysoms) of Nitrobacter agilis. J. Bacteriol. 132:673-675.
118. Smith, A. J., and D. S. Hoare. 1968. Acetate assimilation by Nitrobacter agilis in relation to its “obligate autotrophy”. J. Bacteriol. 95:844-855.
119. Smith, A. J., and D. S. Hoare. 1977. Specialist phototrophs, lithotrophs, and methylotrophs: a unity among a diversity of procaryotes? Bact. Rev. 41:419-448.
120. Smith, J. H. 1964. Relationships between soil cation-exchange capacity and the toxicity of ammonia to the nitrification process. Soil Sci. Soc. Am. Proc. 28:640-644.
121. Soriano, S., and N. Walker. 1968. Isolation of ammonia-oxidizing autotrophic bacteria. J. Appl. Bacteriol. 31:493-497.
122. Stanford, G., and S. J. Smith. 1972. Nitrogen mineralization potential in soils. Soil Sci. Soc. Am. Proc. 36:465-472.
123. Starr, J. L., F. E. Broadbent, and D. R. Nielsen. 1974. Nitrogen transformations during continuous leaching. Soil Sci. Soc. Am. Proc. 38:283-289.
124. Stephenson, M. 1939. Bacterial metabolism. 2nd ed. Longmans, Green, and Co., London.
125. Suzuki, I. 1974. Mechanisms of inorganic oxidation and energy coupling. Ann. Rev. Microbiol. 28:85-101.
126. Suzuki, I., U. Dular, and S. C. Kwok. 1974. Ammonia or ammonium ion as substrate for oxidation by Nitrosomonas europaea cells and extracts. J. Bacteriol. 120:556-558.
127. Taylor, J. 1962. The estimation of numbers of bacteria by tenfold dilution series. J. Appl. Bacteriol. 25:54-61.
128. Theron, J. J. 1951. The influence of plants on the mineralization of nitrogen and the maintenance of organic matter in soil. J. Agric. Sci. 41:289-296.
129. Van Gool, A. P., and H. Laudelout. 1966. Formate utilization by Nitrobacter winogradskyi. Biochim. Biophys. Acta 127:295-301.
130. Vitousek, P. M., and W. A. Reiners. 1975. Ecosystem succession and nutrient retention: a hypothesis. Bioscience 25:376-381.
131. Volz, M. G., L. W. Belser, M. S. Ardakani, and A. D. McLaren. 1975. Nitrate reduction and nitrite utilization by nitrifiers in an unsaturated Hanford sandy loam. J. Environ. Oual. 4: 179-182.
132. Wainwright, M. 1977. Effects of fungicides on the microbiology and biochemistry of soils-A review. Z. Planzenernaehr. Bodenkd. 140:587-602.
133. Wainwright, J., and G. J. F. Pugh. 1973. The effect of three fungicides on nitrification and ammonification. Soil biol. Biochem. 5:577-584.
134. Waksman, S. A. 1932. Principles of soil microbiology. 2nd ed. Williams & Wilkins, Baltimore.
135. Waksman, S. A. 1946. Sergei Nikolaevitch Winogradsky. The story of a great bacteriologist. Soil Sci. 62:197-226.
136. Walker, N. 1975. Nitrification and nitrifying bacteria, p. 133-146. In N. Walker (ed.) Soil microbiology. Butterworths, London.
137. Walker, N. 1978. On the diversity of nitrifiers in nature, p. 346-347. In D. Schlessinger (ed.) Microbiology 1978. Am. Soc. Microbiol. Washington, D.C.
138. Walton, G. 1951. Survey of literature related to infant methemoglobinemia due to nitrate contaminated water. Am. J. Pub. Health 41:986-996.
139. Watson, S. W. 1971. Reisolation of Nitrosospira briensis S. Winogradsky and H. Winogradsky 1933. Arch. Mikrobiol. 75:179-188.
140. Watson, S. W. 1974. Gram-negative chemolithotrophic bacteria. Family I. p. 450-456. In R. E. Buchanan and N. E. Gibbons (ed.) Bergey’s manual of determinative bacteriology, 8th ed. The Williams & Wilkins Co., Baltimore.
141. Watson, S. W., L. B. Graham, C. C. Remsen, and F. W. Valois. 1971. A lobular, ammonia-oxidizing bacterium, Nitrosolobus multiformis nov. gen. nov. sp. Arch. Mikrobiol. 76: 183-203.
142. Weber, D. F., and P. L. Gainey. 1962. Relative sensitivity of nitrifying organisms to hydrogen ions in soils and in solutions. Soil Sci. 94:138-145.
143. Whittenbury, R., and D. P. Kelly. 1977. Autotrophy: a conceptual phoenix, p. 121-149. In B. A. Haddock and W. A. Hamilton (ed.) Microbial energetics. 17th Symp. of the Soc. for Gen. Microbiol. Cambridge University Press. Cambridge.
144. Whittenbury, R., K. C. Phillips, and J. F. Wilkinson. 1970. Enrichment, isolation and some properties of methane-utilising bacteria. J. Gen. Microbiol. 61:205-218.
145. Winogradsky, S. N. 1949. Microbiologie du sol: problemes et methodes. Masson et Cie., Paris.
146. Yung, Y. L., and M. B. McElroy. 1979. Fixation of nitrogen in the prebiotic atmosphere. Science 203:1002-1004.