Shoot P status regulates cluster‐root growth and citrate exudation in Lupinus albus grown with a divided root system

By M. W. Shane, M. Vos, S. Roock, H. Lambers. 2003

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Plant and microbial strategies to improve the phosphorus efficiency of agriculture (2011, background): “However, P acquisition traits may not be expressed in all cropping situations because increasing soil P availability reduces investment in cluster roots to almost zero in all species (Reddell et al. 1997; Shane et al. 2003a; Shane et al. 2003b; Shane et al. 2006; Abdolzadeh et al. 2010).”
The future of grain legumes in cropping systems (2012, background): “Another root alternative for scavenging soil P is the development of cluster roots, like in lupins (Neumann et al. 2000; Shane et al. 2003; Lambers et al. 2006).”
Plant root growth, architecture and function (2009, background): “Both formation of cluster roots and the exudative burst are regulated by P concentrations in the shoot rather than in the soil (Shane et al. 2003), although the actual exudative burst is the more tightly regulated of the two (Keerthisinghe et al.”