I’m having trouble with the gfp-containing vectors.

Researchers at CAMBIA have found that the mGFP5 protein and its GUSA fusion proteins are not particularly bright. Confocal microscopy is generally needed to get reasonable results. Much better results have been achieved with the egfp gene. Constructs analogous to pCAMBIA1302, 1303 & 1304 using egfp in the place of mgfp5 gave far better results in our hands in rice and Arabidopsis. We are not authorised to distribute egfp-containing vectors, however.  We can supply protocols on how we made these vectors. For a license to egfp, if you are in a jurisdiction in which you would require it for freedom to operate, you should contact Clontech.