Dr. Jorge Reyes-Rivera has worked during the last fifteen years studying the ontogeny, anatomy, gene expression, structural chemical composition, evolution and systematics in succulent plants, mainly in the Cactaceae family. He is a member of the National System of Researchers (SNI-CONACyT) in Mexico. The results of his research work have been published in several scientific articles in JCR journals as well as in book chapters. His most recent work focuses on the study of gene expression in the cambial zone, the structural chemical characterization of internal and external lignocellulosic organs and their relationship to the taxonomy and evolution of species in Cactaceae. He is currently performing a postdoctoral research in the Universidad Nacional Autónoma de México on the chemotaxonomy of different species of Cactaceae using the spines of the stem.