Ahmad I and Hellebust J A 1991 Enzymology of N assimilation in mycorrhiza. Methods Microbiol. 23, 181–201.
Bethke P C, Hillmer S and Jones R L 1996 Isolation of intact protein storage vacuoles from barley aleurone. Plant Physiol. 110, 521–529.PubMed
Crocker L J and Schwintzer C R 1993 Factors affecting formation of cluster roots in Myrica gale seedlings in water culture. Plant Soil 152, 287–298.
Diem H G, Duhoux E, Zaids H and Arahou M 2000 Cluster roots in Casuarina: role and relationship to soil nutrient factors. Ann. Bot. 85, 929–936.
Dinkelaker B, Hengeler C and Marschner H 1995 Distribution and function of proteoid roots and other root clusters. Botanica Acta 108, 183–200.
Chapin F S, Moilanen L and Kielland K 1993 Preferential use of organic nitrogen for growth by a non-mycorrhizal arctic sedge. Nature 361, 150–153.
Fischer W-N, Kwart M, Hummel S and Frommer W B 1995 Substrate specificity and expression profile of amino acid transporters (AAPs) in Arabidopsis
. J. Biol. Chem. 270, 16315–16320.PubMed
Frommer W B, Kwart M, Hirner B, Fischer W N, Hummel S and Ninnemann O 1994 Transporters for nitrogenous compounds in plants. Plant Molecular Biol. 26, 1651–1670.
Gilbert G A, Knight J D, Vance C and Allan D L 2000 Proteoid root development of phosphorus deficient lupin is mimicked by auxin and phosphonate. Ann. Bot. 85, 921–928.
Gilbert G A, Knight J D and Vance C 1997 Does auxin play a role in the adaptations of while lupin root to phosphate deficiency? Plant Physiol. 114 (Suppl), 67.
Grierson P F and Attiwill P M 1989 Chemical characterisation of the proteoid root mat of Banksia integrifolia L.f. Aust. J. Bot. 37, 137–143.
Kielland K 1994 Amino acids absorption by arctic plants: implications for plant nutrition and nitrogen cycling. Ecology 75, 2373–2383.
Kwart M, Hirner B, Hummel S and Frommer W B 1993 Differential expression of two related amino acid transporters with differing substrate specificity in Arabidopsis thaliana
. Plant J. 4, 993–1002.PubMed
Lamont B 1993 Why are hairy root clusters so abundant in the most nutrient-impoverished soils of Australia? In Plant Nutrition – From Genetic Engineering to Field Practice. Ed N J Barrow. pp. 309–312. Kluwer Academic Publishers, Dordrecht, The Netherlands.
Lamont B 1982 Mechanisms for enhancing nutrient uptake in plants with particular reference to mediterranean South Africa and Western Australia. Bot. Rev. 48, 597–689.
Lamont B 1973 Factors affecting the distribution of proteoid roots within the root system of two Hakea species. Aust. J. Bot. 21, 165–187.
Leake J R and Read D J 1990 Proteinase activity in mycorrhizal fungi. New Phytol. 115, 243–250.
Mason M and Schmidt S Rapid isolation of high quality RNA and genomic DNA from Hakea actities. Func. Plant Biol., in press.
Moore C W F and Keraitis K 1966 Nutrition of Grevillea robusta. Aust. J. Bot. 14, 151–163.
Näsholm T, Ekblad A, Nordin A, Giesler R, Högberg M and Högberg P 1998 Boreal forest plants take up organic nitrogen. Nature 392, 914–916.
Neumann G and Martinoia E 2002 Cluster roots – an underground adaptation for survival in extreme environments. Trends Plant Sci. 7, 162–167.PubMed
Neumann G, Massonneau A, Langlade N, Dinkelaker B, Hengeler C, Römheld V and Martinoia E 2000 Physiological aspects of cluster root function and development in phosphorus-deficient white lupin (Lupinus albus L.) Ann. Bot. 85, 909–919.
Ninnemann OW, Jauniauex J C and Frommer WB 1994 Identification of a high affinity ammonium transporter from plants. EMBO J. 13, 3464–3471.PubMed
Pate J S and Jeschke W D 1993 Mineral uptake and transport in xylem and phloem in the proteaceous tree Banksia prionotes. In Plant Nutrition – From Genetic Engineering to Field Practice. Ed. N J Barrow. pp. 313–316. Kluwer Academic Publishers, Dordrecht, The Netherlands.
Roelofs R F R, Rengel Z, Cawthray G R, Dixon K W and Lambers H 2001 Exudation of carboxylates in Australian Proteaceae: chemical composition. Plant Cell Environ. 24, 891–903.
Schmidt S and Stewart G R 1999 Glycine metabolism by plant roots and its occurrence in Australian plant communities, Aust. J. Plant Physiol. 26, 253–264.
Schmidt S and Stewart G R 1997 Waterlogging and fire impacts on nitrogen availability and utilization in a subtropical wet heathland (wallum). Plant Cell Environ. 20, 1231–1241.
Skene K R and James W M 2000 A comparison of the effects of auxin on cluster root initiation and development in Grevillea robusta Cunn. Ex. R.Br. (Proteaceae) and in the genus Lupinus (Leguminoseae). Plant Soil 219, 221–229.
Smith S E and Read D J 1997 Mycorrhizal Symbiosis, 2nd edn. Academic Press, London.
Song W, Koh S, Czako M, Marton L, Drenkard E, Becker J M and Stacey G 1997 Antisense expression of the peptide transport gene AtPTR2-B delays flowering and arrests seed development in transgenic Arabidopsis
plants. Plant Physiol. 114, 927–935.PubMed
Turnbull M H, Goodall R and Stewart G R 1995 The impact of mycorrhizal colonization upon nitrogen source utilization and metabolism in seedlings of Eucalyptus grandis Hill ex Maiden and Eucalyptus maculata Hook. Plant Cell Environ. 18, 1386–1394.
Walch-Lui P, Neumann G, Bangerth F and Engels C 2000 Rapid effects of nitrogen form on leaf morphogenesis in tobacco. J. Exp. Bot. 343, 227–237.
Wallace W and Shannon J D 1981 Proteolytic activity and nitrate reductase inactivation in maize roots. Aust. J. Plant Physiol. 8, 211–219.
Waterworth W M, West, C E and Bray C M 2000 The barley scutellar peptide transporter: biochemical characterization and localization to the plasma membrane. J. Exp. Bot. 51, 1201–1209.PubMed
Watt M and Evans J R 1999 Linking development and determinacy with organic acid efflux from proteoid roots of white lupin grown with low phosphorus and ambient or elevated atmospheric CO2 concentrations. Plant Physiol. 120, 705–716.PubMed
West C E, Waterworth W M, Stephens S M, Smith C P and Bray C M 1998 Cloning and functional characterisation of a peptide transporter expressed in the scutellum of barley grain during the early stages of germination. Plant J. 15, 221–229.PubMed
Ye Z-H and Varner J E 1996 Induction of cysteine and serine proteinases during xylogenesis in Zinnia elegans
. Plant Mol. Biol. 30, 1233–1246.PubMed