Please find enclosed some  good publications..hope you find them useful..

Dear Vahid I´m sending you some papers that I hope can be usefull for you. (1) I atached mine and (2) the following references of other colleagues:

Grelet GA, Meharg AA, Duff EI, Anderson IC, Alexander IJ (2009a) Small genetic differences between ericoid mycorrhizal fungi affect nitrogen uptake by Vaccinium. New Phytol 181:708–718

Grelet GA, Johnson D, Paterson E, Anderson IC, Alexander IJ (2009b)

Reciprocal carbon and nitrogen transfer between an ericaceous

dwarf shrub and fungi isolated from Piceirhiza bicolorata ectomycorrhizas.

New Phytol 182(2):359–366.

Grelet GA, Johnson D, Vrålstad T, Alexander IJ, Anderson IC (2010)

New insights into the mycorrhizal Rhizoscyphus ericae aggregate:

spatial structure and co-colonization of ectomycorrhizal and ericoid

roots. New Phytol 188:210–222.

Best regards. Luis

Thanks Luis, so productive information

My pleasure Vahid and if you need any help please let me know