Loss of exudates from the roots of perennial ryegrass inoculated with a range of micro-organisms

Barber D A and Gunn K B 1974 The effect of mechanical forces on the exudation of organic substances by roots of cereal plants grown under sterile conditions. New Phytol. 73, 39–45.

Beck M and Gilmore C M 1983 Role of wheat root exudates in associative nitrogen fixation. Soil Biol. Biochem. 15, 33–38.

Biondini M, Klein D A and Redente E F 1988 Carbon and nitrogen losses through root exudation by Agropyron cristatum, A. Smithii and Bouteloua gracilis. Soil Biol. Biochem. 20, 477–482.

Booth C 1971 The genus Fusarium. Commonwealth Agricultural Bureaux, London.

Bowen G D 1980 Misconceptions, concepts and approaches in rhizosphere biology. In Contemporary Microbial Ecology. Eds. D CEllwood, J NHedger, M JLatham, J MLynch and J HSlater. pp 283–304. Academic Press, London.

Bowen G D and Rovira A D 1992 The rhizosphere: the hidden half of the hidden half. In Plant Roots: The Hidden Half. Eds. YWaisel, AEshel and UKafkafi. pp 641–669. Marcel Decker, New York.

Gillespie-Sasse L M J, Almassi F, Ghisalberti E L and Sivasithamparam K 1991 Use of a clean seedling assay to test plant growth promotion by exudates from a sterile red fungus. Soil Biol. Biochem. 23, 95–97.

Laheurte F and Berthelin J 1988 Effect of phosphate solubilizing bacteria on maize growth and root exudation over four levels of labile phosphorus. Plant and Soil 105, 11–17.

Lee K J and Gaskins M H 1982 Increased root exudation of 14C-compounds by sorghum seedlings inoculated with nitrogen-fixing bacteria. Plant and Soil 69, 391–399.

Lynch J M 1983 Soil Biotechnology. Blackwell Scientific Publications, Oxford.

Lynch J M and Whipps J M 1990 Substrate flow in the rhizosphere. Plant and Soil 129, 1–10.

Meharg A A and Killham K 1991 A novel method of determining root exudates in the presence of soil micro-flora. Plant and Soil 133, 111–116.

Minchin P E H and MacNaughton G S 1984 Exudation of recently fixed carbon by non-sterile roots. J. Exp. Bot. 35, 74–82.

Papavizas G C 1985 Trichoderma and Gliocladium. Biology, ecology and potential for biocontrol. Ann. Rev. Phytopathol. 23, 23–54.

Prikryl Z and Vancura V 1980 Root exudates of plants. VI. Wheat root exudation as dependent on growth. Concentration gradient of exudates in the presence of bacteria. Plant and Soil 57, 69–83.

Raper K B and Thom C 1949 A Manual of the Penicillia. Hafner, New York.

Rovira A D, Newman E I, Bowen H J and Campbell R 1974 Quantitative assessment of rhizoplane microflora by direct microscopy. Soil Biol. Biochem. 6, 211–216.

Snellgrove R C, Splittstoesser W E, Stribley D P and Tinker P B 1982 The distribution of carbon and the demand of the fungal symbiont in leek plants with vesicular-arbuscular mycorrhizae. New Phytol. 92, 75–87.

Thom C and Raper K B 1945 A Manual of the Aspergilli. The Williams and Wilkins Company, Baltimore.

VanVuurde J W L and Schippers B 1980 Bacterial colonization of seminal wheat roots. Soil Biol. Biochem. 12, 559–565.