Bakker PAHM, Berendsen RL, Doornbos RF et al. (2013) The rhizosphere revisited: root microbiomics. Front Plant Sci 4: Article 65
Barber DA Martin JK (1976) The release of organic substances by cereal roots into soil. New Phytol 76: 69-80
Berendsen RL, Pieterse CMJ, Bakker PAHM (2012) The rhizosphere microbiome and plant Health. Trends Plant Sci 17: 478-486
Bergesen FJ (1982) Root Nodules of Legumes, Structure and Function. Research Studies Press, John Wiley, New York
Blossfeld S, Gansert D, Thiele B et al. (2011) The dynamics of oxygen concentration, pH value, and organic acids in the rhizosphere of Juncus spp. Soil Biol Biochem 43: 1186-1197
Blossfeld S, Schreiber CM, Liebsch G et al. (2013) Quantitative imaging of rhizosphere pH and CO2 dynamics with planar optodes. Ann Bot 112: 267-276
Brundrett MC (2004) Diversity and classification of mycorrhizal associations. Biol Rev 78: 473-495
Brundrett MC (2008) Mycorrhizal Associations: The Web Resource (URL: mycorrhizas.info)
Brundrett MC (2009). Mycorrhizal associations and other means of nutrition of vascular plants: Understanding the global diversity of host plants by resolving conflicting information and developing reliable means of diagnosis. Plant Soil 320: 37-77
Brundrett M, Bougher N, Dell B et al. (1996) Working with mycorrhizas in forestry and agriculture. Australian Centre for International Agricultural Research. (URL: http://aciar.gov.au/publication/mn032)
Bulgarelli D, Rott M, Schlaeppi K et al. (2012) Revealing structure and assembly cues for Arabidopsis root-inhabiting bacterial microbiota. Nature 488: 91-95
Butler AJ, Barbier N, Čermák J et al. (2010) Estimates and relationships between aboveground and belowground resource exchange surface areas in a Sitka spruce managed forest. Tree Physiol 30: 705-714
Carter EL, Flugga N, Boer JL et al. (2009) Interplay of metal ions and urease. Metallomics 1: 207-221
Delaux P-M, Radhakrishnan G, Oldroyd G (2015) Tracing the evolutionary path to nitrogen-fixing crops. Curr Opin Plant Biol 26: 95-99
Desbrosses GJ, Stougaard J (2011) Root nodulation: A paradigm for how plant-microbe symbiosis influences host developmental pathways. Cell Host Microbe 10: 348-358
Dittmer HK (1937) A quantitative study of the roots and root hairs of a winter rye plant (Secale cereale). Amer J Bot 24: 417-420
Follmer C (2008) Insights into the role and structure of plant ureases. Phytochem 69: 18-28
Fowler D, Coyle M, Skiba U et al. (2013) The global nitrogen cycle in the twenty-first century. Trans Royal Soc London B 368: 20130164
Goh C-H, Nicotra AB, Mathesius U (2015) The presence of nodules on legume root systems can alter phenotypic plasticity in response to internal nitrogen independent of nitrogen fixation. Plant Cell Environ 39: 883-896
Hartmann A, Rothballer M, Schmid M (2008) Lorenz Hiltner, a pioneer in rhizosphere microbial ecology and soil bacteriology research. Plant Soil 312: 7–14
Held M, Hossain MS, Yokota K et al. (2010) Common and not so common symbiotic entry. Trends Plant Sci 15: 540-545
Hochholdinger F (2009) The Maize Root System: Morphology, Anatomy, and Genetics. In J.L. Bennetzen and S.C. Hake eds, Handbook of Maize: it’s biology. DOI: 10.1007/978-0-387-79418-1_8
Hochholdinger F, Park WJ, Sauer M, Woll K (2004) From weeds to crops: genetic analysis of root development in cereals. Trends Plant Sci 9: 42-48
Jones D, Nguyen C, Finlay DR (2009) Carbon flow in the rhizosphere: carbon trading at the soil-root interface. Plant Soil 321: 5-33
Jones KM, Kobayashi H, Davies BW et al. (2007) How rhizobial symbionts invade plants: the Sinorhizobium-Medicago model. Nature Rev Microbiol 5: 619-633
Jones VAS, Dolan L (2012) The evolution of root hairs and rhizoids. Ann Bot 110: 205-212
Layzell DB (1992) N2 fixation, NO3- reduction and NH4+ assimilation. In Plant Physiology, Biochemistry and Molecular Biology. DT Dennis and DH Turpin, eds, Longman Scientific and Technical: London
Layzell DB, Hunt SH (1990) Oxygen and the regulation of nitrogen fixation in legume nodules. Physiol Plant 80: 322-337
Lundberg DS, Lebeis SL, Herrera Paredes S et al. (2012) Defining the core Arabidopsis thaliana root microbiome. Nature 488: 86-90
Malajczuk N, Cromack K (1982) Accumulation of calcium-oxalate in the mantle of ectomycorrhizal roots of Pinus radiata and Eucalyptus marginata. New Phytol 92: 527-531
Marschner H (1995) Mineral nutrition of higher plants (2nd edition) Academic Press, San Diego
Marschner P, Rengel Z (2012) Chapter 12 - Nutrient Availability in Soils. In P Marschner, ed, Marschner's Mineral Nutrition of Higher Plants (Third Edition). Academic Press, San Diego, pp 315-330
McKenzie BM, Mullins CE, Tisdall JM, Bengough AD (2012) Root-soil friction: quantification provides evidence for measurable benefits for manipulation of root-tip traits. Plant Cell Environ 36: 1085-1092
Ohwaki Y Hirata H (1992) Differences in carboxylic acid exudation among P-starved leguminous crops and phospholipid level in roots. Soil Sci Plant Nutr 38: 235-243
Oldroyd GED (2013) Speak, friend, and enter: signalling systems that promote beneficial symbiotic associations in plants. Nature Rev Microbiol 11: 252-632
Parniske M (2008) Arbuscular mycorrhizal: the mother of plant root endosymbioses. Nature Rev Microbiol 6: 736-775
Peoples MB, Faizeh AW, Rerkasem B, Herridge DF (1989) Method for evaluating nitrogen fixation by nodulated legumes in the field. ACIAR Monograph No 11, Canberra
Philippot L, Raaijmakers JM, Lemanceu P, van der Putten WH (2013) Going back to the roots: the microbial ecology of the rhizosphere. Nature Rev Microbiol 11: 789-799
Reich PB (2002) Root-Shoot Relations : Optimality in Acclimation and Adaptation or the "Emperors New Clothes"? In Y Waisel, A Eshel, U Kafkafi, eds, Plant roots: the hidden half. M. Dekker, New York, pp 205-220
Rogers G, Oldroyd GED (2014) Synthetic biology approaches to engineering nitrogen-fixing symbioses in cereals. J Exp Bot 65: 1939-1946
Ryan MH, McCully ME, and Huang CX (2003) Location and quantification of phosphorus and other elements in fully hydrated, soil-grown arbuscular mycorrhizas: a cryo-analytical scanning electron microscopy study. New Phytol 160: 429-441
Ryan MH, Tibbett M, Edmonds-Tibbett T et al. (2012) Carbon trading for phosphorus gain: the balance between rhizosphere carboxylates and arbuscular mycorrhizal symbiosis in plant phosphorus acquisition. Plant Cell Environ 35: 2170-2180
Santi C, Bogusz D, Franche C (2013) Biological nitrogen fixation in non-legume plants. Ann Bot 111: 743–767
Smith SE, Read DJ (2008). Mycorrhizal Symbiosis, Third Edition. Oxford: Academic Press
Sprent JI (2007) Evolving ideas of legume evolution and diversity: a taxonomic perspective on the occurrence of nodulation. New Phytol 174: 11-25
Sprent JI, Raven JA (1985) Evaluation of nitrogen-fixing symbioses. Proc Royal Soc Edinburgh B 85: 215-237
Steffen W, Richardson K, Rockstroem J et al. (2015) Planetary boundaries: Guiding human development on a changing planet. Science 347: 1259855
Steffens B, Rasmussen A (2016) The physiology of adventitious roots. Plant Physiol 170: 603-617
Teplitski M, Mathesius U, Rumbaugh KB (2011) Quorum sensing signal perception and degradation by mammalian and plant cells. Chem Rev 111: 100-116
Udvardi M, Poole PS (2013) Transport and metabolism in legume-rhizobia symbioses. Annu Rev Plant Biol 64: 781-805
Weaver JE, Himmel WJ (1929) Relation between the development of root system and shoot under long- and short-day illumination. Plant Physiol 4: 435-457
Werner GDR, Cornwell WK, Sprent JI et al. (2014) A single evolutionary innovation drives the deep evolution of symbiotic N2-fixation in angiosperms. Nature Comms 5: 5087