REFERENCES AND RECOMMENDED READING SECTION B Berger, J.A., S.N. May, L.R. Berger, and B.B. Bohlool. 1979. Colorimetric enzyme-linked immunosorbent assay for the identification of strains of Rhizobium in culture and in the nodules of lentils. Appl. Environ. Microbiol. 37:742-746. Brockwell, J. and W.F. Dudman. 1968. Ecological studies of root-nodule bacteria introduced into field environments II. Initial competition between seed inocula in the nodulation of Trifolium subterraneum L. seedlings. Aust. J. Agric. Res. 19:749-57. Brockwell, J., E.A. Schwinghamer, and R.A. Gault. 1977. Ecological studies of root-nodule bacteria introduced into field environments. V. A critical examination of antigenic and streptomycin-resistance markers for identification of strains of Rhizobium trifolii. Soil. Biol. Biochem. 9:19-24. Bushby, H.V.A. 1982. Direct quantitative recovery of Rhizobium from soil and rhizospheres. In J.M. Vincent (ed.). Nitrogen Fixation in Legumes. Academic Press, Sydney. p 59-67. Franco, A.A. and J.M. Vincent. 1976. Competition amongst rhizobial strains for the colonization and nodulation of two tropical legumes. Plant Soil. 45:27-48. Geogala, D.L. and Margery Boothroyd. 1968. Immunofluorescence--A useful technique for microbial identification. In B.M. Gibbs and D.A. Shapton (eds.). Identification Methods for Microbiologists. The Soc. for Appl. Bacteriol., Technical Series No. 2. p 187-195. Goldman, M. 1968. Fluorescent antibody methods. Academic Press (New York and London). Gollobin, Glenn S. and Richard A. Levin. 1974. Streptomycin resistance in Rhizobium japonicum. Arch. Microbiol. 101:83-90. Gornall, A.G., D.J. Bardawell, and H.M. David. 1949. Determination of serum protein by means of the biuret reaction. J. Biol. Chem. 177:751-766. Graham, P.H. 1963. Antigenic affinities of the root nodule bacteria of legumes. Antonie van Leeuwenhoek J. Microbiol. Serol. 29:281-291. Hagedorn, C. 1979. Relationship of antibiotic resistance to effectiveness in Rhizobium trifolii populations. Soil. Sci. Soc. Am. J. 43:921-925. Hubbell, D.H. 1970. Studies on the root hair 'curling factor' of Rhizobium. Botan. Gaz. 113:337-343. Johnston, A.W.B. and J.E. Beringer. 1976. Mixed inoculations with effective and ineffective strains of Rhizobium leguminosarum. J. Appl. Bact. 40:375-380. Jones, D.G. and P.E. Russell. 1972. The application of immunofluorescence techniques to host plant/nodule bacteria selectivity experiments using Trifolium repens. Soil Biol. Biochem. 4:277-282. Josey, D.P., J.L. Beynon, A.W.B. Johnston, and J.E. Beringer. 1979. Strain identification in Rhizobium using intrinsic antibiotic resistance. J. Appl. Bact. 46:343-350. Kawamura, A. 1969. Fluorescent antibody techniques and their applications. Univ. of Tokyo Press, Tokyo; Univ. Park Press, Baltimore, Maryland. Lennette, E.H., E.H. Spaulding, and J.P. Truant. 1974. Manual of clinical microbiology. Am. Soc. for Microbiol., Washington. Materon, L.A. and C. Hagedorn. 1982. Nodulation of crimson clover by introduced rhizobia in Mississippi Soils. Soil Sci. Soc. Am. J. 46:553-556. Obaton, M. 1973. The use of spontaneous antibiotic resistant mutants for the ecological study of Rhizobium. Bull. Ecol. Res. Comm. (Stockholm). 17:170-171. Parker, C.A. and P.L. Grove. 1970. The rapid serological identification of rhizobia in small nodules. J. Appl. Bactiol. 33:248-252. Russell, P.E. and D. Gareth-Jones. 1975. Immunofluorescence studies of selection of strains of R. trifolii by S184 White clover (T. repens L.) Plant and Soil. 42:119-129. Sadowsky, M.J., B.B. Bohlool, and H.H. Keyser. 1987. Serological relatedness of Rhizobium fredii to other rhizobia and the bradyrhizobia. Appl. Environ. Microbiol. 5:1785-1789. Schwinghamer, E.A. 1964. Association between antibiotic resistance and ineffectiveness in mutant strains of Rhizobium spp. Can. J. Microbiol. 10:221-233. Schwinghamer, E.A. 1967. Effectiveness of Rhizobium as modified by mutation for resistance to antibiotics. Antonie van Leeuwenhoek. J. Microbiol. Serol. 33:121-136. Skrdleta, V. 1969. Serological analysis of eleven strains of Rhizobium japonicum. Antonie van Leeuwenhoek. 35:77-83. Trinick, M.J. 1969. Identification of legume nodule bacteroids by the fluorescent antibody reaction. J. Appl. Bact. 32:181-186. Vincent, J.M. 1982. The basic serology of rhizobia. In J.M. Vincent (ed.). Nitrogen Fixation in Legumes. Academic Press (Sydney). p 13-26. Wilson, M.H.M., B.A. Humphrey, and J.M. Vincent. 1975. Loss of agglutinating specificity in stock cultures of Rhizobium meliloti. Arch. Microbiol. 103:151-154. Yao, P.Y. and J.M. Vincent. 1969. Host specificity in the root hair `curling factor' of Rhizobium spp. Aust. J. Biol. Sci. 22:413-423. Yao, P.Y. and J.M. Vincent. 1976. Factors responsible for the curling and branching of clover root hairs by Rhizobium. Plant and Soil. 45:1-16.