This is an author version of the contribution published on: V. Fiorilli; L. Lanfranco; P. Bonfante (2013) The expression of GintPT, the phosphate transporter of Rhizophagus irregularis, depends on the symbiotic status and phosphate availability, PLANTA (ISSN:0032-0935), pp. 1267- 1277. Vol. 237(5). DOI 10.1007/s00425-013-1842-z The definitive version is available at: La versione definitiva รจ disponibile alla URL: http://link.springer.com/article/10.1007%2Fs00425-013-1842-z