I need to purify total RNA from plants (Arabidopsis thaliana and N. benthamiana) for RT-qPCR. I usually use RNeasy Plant Minikit (Quiagen) which work quiet well, but is very expensive. Recently, I heard from a colleague the possibility to use an alternative kit from Epicenter (MasterPure™ Plant RNA Purification Kit). Does anybody have any advice concerning this choice?. Or recommendation for other cheaper methods?