Linking the depletion of rhizosphere phosphorus to the heterologous expression of a fungal phytase in Nicotiana tabacum as revealed by enzyme-labile P and solution ³¹P NMR spectroscopy

Courtney D. Giles^*, Timothy S. George, Lawrie K. Brown, Malika Mezeli, Charles A. Shand, Alan E. Richardson, Regina Mackay, Renate Wendler, Tegan Darch, Daniel Menezes-Blackburn, Pat Cooper, Marc I. Stutter, David G. Lumsdon, Martin S.A. Blackwell, Catherine Wearing, Hao Zhang, Philip M. Haygarth