Agustín Probanza is the Vice-Rector for Faculty and Research at the Universidad San Pablo CEU, Madrid, Spain. He is also a Professor of Plant Physiology at the Faculty of Pharmacy, Universidad San Pablo CEU. He earned a Ph.D. in Biological Sciences at the Department of Ecology, UCM in 1994. From 1996 to 1997, he was a postdoctoral fellow at Lund University(Sweden). His research work has been developed in a frontier, the root-soil interface: the Rhizosphere. In this environment, microbiology, soil chemistry, microbial ecology, plant ecology, and physiology converge and intersect.