• Bécard G, Piché, Y. 1989a. New aspects on the acquisition of biotrophic status by a vesicular-arbuscular mycorrhizal fungus. Gigaspora margarita. New Phytologist 112: 7783.
  • Bécard, G, Piché, Y. 1989b. Fungal growth stimulation by CO2 and root exudates in vesicular-arbuscular mycorrhizal symbiosis. Applied and Environmental Microbiology 55: 23202325.
  • Elias, KS, Safir, GR. 1987. Hyphal elongation of Glomus fasiculatus in response to root exudates. Applied and Environmental Microbiology 53: 19281933.
  • Gemma JN, Koske RE. 1988. Pre-infection interactions between roots and the mycorrhizal fungus Gigaspora gigantea: chemo-tropism of germ tubes and root growth response. Transactions of the British Mycological Society 91: 123132.
  • Gianinazzi-Pearson V, Branzanti B, Gianinazzi S. 1989. In vitro enhancement of spore germination and early hyphal growth of a vesicular-arbuscular mycorrhizal fungus by host root exudates and plant rlavonoids. Symbiosis 7: 243255.
  • Giovannetti M, Avio L, Sbrana C, Citernesi AS. 1993. Factors affecting appressorium development in the vesicular-arbuscular mycorrhizal fungus Glomus mosseae (Nicol. & Gerd.) Gerd. & Trappe. New Phytologist 123: 114122.
  • Giovannetti M, Mosse B. 1980. An evaluation of techniques for measuring vesicular-arbuscular mycorrhizal infection in roots. New Phytologist 84: 489500.
  • Glenn MG, Chew FS, Williams PH. 1985. Hyphal penetration of Brassica (Cruciferae) roots by a vesicular-arbuscular mycorrhizal fungus. New Phytologist 99: 463472.
  • Glenn MG, Chew FS, Williams PH. 1988. Influence of glucosinolate content of Brassica (Cruciferae) roots on growth of vesicular-arbuscular myconhiznl fungi. New Phytologist 110: 217225.
  • Hoch HC, Staples RC, Whitehead B, Comeau J, Wolf ED. 1987. Signaling for growth orientation and cell differentiation by surface topography in Uromyces. Science 235: 16591662.
  • Koske RE. 1982. Evidence for a volatile atractant from plant roots affecting germ tubes of a VA mycorrhizal fungus. Transactions of the British Mycological Society 79: 305310.
  • Kwon YH, Hoch, HC. 1991. Temporal and spatial dynamics of appressorium formation in Uromyces appendiculatus. Experimental mycology 15: 116131.
  • Mosse, B. 1988. Some studies relating to ‘independent’ growth of vesicular-arbuscular endophytes. Canadian Journal of Botany 66: 25332540.
  • Mosse B, Hepper CM. 1975. Vesicular-arbuscular mycorrhizal infections in root organ cultures. Physiological Plant Pathology 5: 215223.
  • Nair, MG, Safir GR, Siqueira JO. 1991. Isolation and identification of vesicular-arbuscular mycorrhiza-stimulatory compounds from clover (Trifolium repens) roots. Applied and Environmental Microbiology 57: 434439.
  • Powell C LI. 1976. Development of mycorrhizal infection from Endogone spores and infected root segments. Transactions of the British Mycological Society 66: 438445.
  • Siqueira JO, Safir GR, Nair MG. 1991. Stimulation of vesicular-arbuscular mycorrhiza formation and growth of white clover by flavonoid compounds. New Phytologist 118: 8793.
  • Staples RC, Macko V. 1980. Formation of infection structures as a recognition response in fungi. Experimental Mycology 4: 216.
  • Staples RC, Macko V, Wynn WK, Hoch HC. 1983. Terminology to describe the differentiation response by germlings of fungal spores. Phytopathology 73: 380.
  • St Leger RJ, Butt TM, Goettel MS, Staples RC, Roberts DW. 1989. Production in vitro of appressoria by entomopathogenic fungus Metarhizium anisopliae. Experimental Mycology 13: 274288.
  • Tsai SM, Phillips DA. 1991. Flavonoids released naturally from alfalfa promote development of symbiotic Glomus spores in vitro. Applied and Environmental Microbiology 57: 14851488.