LITERATURE CITED
- Adelman, M. J., and J. B. Morton. 1986. Infectivity of vesicular-arbuscular mycorrhizal fungi: influence of host-soil diluent combinations on MPN estimates and percentage colonization. Soil Biol. Biochem. 18: 77–83.
- Altman, F. P. 1976. Tetrazolium salts and formazans. Progr. Histochem. Cytochem. 9: 1–56.
- An, Z.-Q., and J. W. Hendrix. 1988. Determining viability of endogonaceous spores with a vital stain. Mycologia 80: 259–261.
- British Colour Council. 1938. [1938–1941.] Horticultural colour chart. H. Stone and Sons, Ltd., Banbury, United Kingdom.
- Curl H., Jr., and J. Sandberg. 1961. The measurement of dehydrogenase activity in marine organisms. J. Mar. Res. 19: 123–138.
- Daniels, B. A., and H. D. Skipper. 1982. Methods for the recovery and quantitative estimation of propagules from soil. Pp. 29–36. In: Methods and principles of mycorrhizal research. Ed., N. C. Schenck. American Phytopathological Society, St. Paul, Minnesota.
- Fang, Y.-C., A. C. McGraw, H. Modjo, and J. W. Hendrix. 1983. A procedure for isolation of single spore cultures of certain endomycorrhizal fungi. New Phytol. 93: 107–114.
- Hoagland, D. R., and D. I. Arnon. 1938. The water-culture method for growing plants without soil. Circ. Calif. Agric. Exp. Sta. no. 347.
- Jiang, J., and D. C. Erwin. 1990. Morphology, plasmolysis, and tetrazolium bromide stain as criteria for determining viability of Phytophthora oospores. Mycologia 82: 107–113.
- Kormanik, P. P., W. C. Bryan, and R. C. Schultz. 1980. Procedures and equipment for staining large numbers of plant root samples for endomycorrhizal assay. Canad. J. Microbiol. 26: 536–538.
- McGraw, A.-C., and J. W. Hendrix. 1986. Influence of soil fumigation and source of strawberry plants on population densities of spores and infective porpagules of endogonaceous mycorrhizal fungi. Pl. & Soil 94: 425–434.
- Menge, J. A., and L. W. Timmer. 1982. Procedures for inoculation of plants with vesicular-arbuscular mycorrhizae in the laboratory, greenhouse, and field. Pp. 59–68. In: Methods and principles of mycorrhizal research. Ed., N. C. Schenck. American Phytopathological Society, St. Paul, Minnesota.
- Meier, R., and I. Charvat. 1993. Reassessment of tetrazolium bromide as a viability stain for spores of vesicular-arbuscular mycorrhizal fungi. Amer. J. Bot. 80: 1007–1015.
- Morton, J. B. 1985. Underestimation of most probable numbers of vesicular-arbuscular endophytes because of non-staining mycorrhizae. Soil Biol. Biochem. 17: 383–384.
- Nelson, G. A., and O. A. Olsen. 1967. Staining reactions of resting sporagia of Synchytrium endobioticum with a tetrazolium compound. Phytopathology 57: 965–968.
- Nicolson, T. H., and J. W. Gerdemann. 1968. Mycorrhizal Endogone species. Mycologia 60: 313–325.
- Phillips, J. M., and D. S. Hayman. 1970. Improved procedures for clearing roots and staining parasitic and vesicular-arbuscular mycorrhizal fungi for rapid assessment of infection. Trans. Brit. Mycol. Soc. 55: 158–161.
- Rodriguez, G. G., D. Phipps, K. Ishiguro, and H. F. Ridgway. 1992. Use of a fluorescent redox probe for direct visualization of actively respiring bacteria. Appl. Environm. Microbiol. 58: 1801–1808.
- Siqueira, J. O., D. H. Hubbell, and N. C. Schenck. 1982. Spore germination and germ tube growth of a vesicular-arbuscular mycorrhizal fungus in vitro. Mycologia 74: 952–959.
- Sutherland, E. D., and S. D. Cohen. 1983. Evaluation of tetrazolium bromide as a vital stain for fungal oospores. Phytopathology 73: 1532–1535.
- Talukdar, N. C., and J. J. Germida. 1993. Occurrence and isolation of vesicular-arbuscular mycorrhizae in cropped field soils of Saskatchewan, Canada. Canad. J. Microbiol. 39: 567–575.
- Tommerup, I. C., and D. K. Kidby. 1980. Production of aseptic spores of vesicular-arbuscular endophytes and their viability after chemical and physical stress. Appl. Environm. Microbiol. 39: 1111–1119.
- Walley, F. L. 1993. Interactions between vesicular-arbuscular mycorrhizal fungi and fluorescent Pseudomonas species. Ph.D. Dissertation, University of Saskatchewan, Saskatoon, Canada. 254 pp.
- Walley, F. L., A. B. Hilger, and J. J. Germida. 1992. Evaluation and comparison of various tetrazolium salts as vital stains for determining VAM spore viability. Abstr. Amer. Soc. Agron. Annual Meeting, Minneapolis, Minnesota, p. 270.