Bachhuber M, Brill WJ, Howe MM (1976) Use of bacteriophage Mu to isolate deletions in thehis-nif region ofKlebsiella pneumoniae. J Bacteriol 128: 749–753
Belay N, Sparling R, Daniels L (1984) Dinitrogen fixation by a therophilic methanogenic bacterium. Nature 312: 286–288
Boddey RM, Uriquiago S, Döbereiner J (1990) Quantification of biological nitrogen fixation associated with sugar cane. In: Gresshoff, Roth, Stacey, Newton (eds) Nitrogen fixation: achievements and objectives. Chapman and Hall, New York, p 648
Callaham D, DelTredici P, Torrey JG (1978) Isolation and cultivation in vitro of the actinomycete causing root modulation inComptonia. Science 199: 899–902
Cavalcante VA, Döbereiner J (1988) A new acid-tolerant nitrogenfixing bacterium associated with sugarcane. Plant and Soil 108: 23–31
Cojho EH, Reis VM, Schenberg ACG, Döbereiner J (1993) Interactions ofAcetobacter diazotrophicus with an amylolytic yeast in nitrogen-free batch culture. FEMS Microbiol Lett 106: 341–346
DeSmedt J, DeLey J (1977) Intra- and intergeneric similarities ofAgrobacterium ribosomal ribonucleic acid cistrons. Int J Syst Bacteriol 27: 222–240
Döbereiner J, Day JM, Dart PJ (1972) Nitrogenase activity in the rhizosphere of sugar cane and some other tropical grasses. Plant Soil 37: 191–196
Falk EC, Döbereiner J, Johnson JL, Krieg NR (1985) Deoxyribonucleic acid homology ofAzospirillum amazonense Magalhães et al. 1984 and emendation of the description of the genusAzospirillum. Int J Syst Bacteriol 35: 117–118
Gillis M, Kersters K, Hoste B, Janssens D, Kroppenstedt RM, Stephan MP, Teixeira KRS, Döbereiner J, Deley J (1989)Acetobacter diazotrophicus sp. nov. a nitrogen-fixing acetic acid bacterium associated with sugarcane. Int J Syst Bacteriol 39: 361–364
Hino S, Wilson PW (1958) Nitrogen fixation by a facultative bacillus. J Bacteriol 75: 403–408
Madigan M, Cox SS, Stegeman RA (1984) Nitrogen fixation and nitrogenase activities in members of the familyRhodospirillaceae. J Bacteriol 157: 73–78
Murray PA, Zinder SH (1984) Nitrogen fixation by a methanogenic archaebacterium. Nature 312: 284–286
Newton JW, Wilson PW, Burris RH (1953) Direct demonstration of ammonia as an intermediate in nitrogen fixation byAzotobacter. J Biol Chem 204: 445–451
Okon Y, Fallik E, Sarig S, Yahalom E, Tal S (1988) Plant growth promoting effects ofAzospirillum. In: Bothe H, deBruijn FJ, Newton WE (eds) Nitrogen fixation: hundred years after. G Fischer, Stuttgart, pp 741–746
Postgate JR, Kent HM (1985) Diazotrophy withinDesulfovibrio. J Gen Microbiol 131: 2119–2122
Reinhold B, Hurek T, Fendrik I, Pot B, Gillis M, Kesstens K, Thielemans S, DeLey J (1987)Azospirillum halopraeferens sp. nov., a nitrogen-fixing organism associated with roots of Kallar grass (Leptochloa fusca (L.) Kunth). Int J Syst Bacteriol 37: 43–51
Smith RL, Bouton JH, Schank SC, Quesenberry KH, Tyler ME, Milam JR, Gaskins MH, Litteil RC (1976) Nitrogen fixation in grasses inoculated withSpirillum lipoferum. Science 193: 1003–1005
Umbreit WW, Burris RH, Stauffer JF (eds) (1964) Manometric techniques, 4th edn. Burgess, Minneapolis