American Journal of Plant Sciences, 2013, 4, 2070-2082 Published Online November 2013 (http://www.scirp.org/journal/ajps) http://dx.doi.org/10.4236/ajps.2013.411259 A Review of Paulownia Biotechnology: A Short Rotation, Fast Growing Multipurpose Bioenergy Tree Niraj Kumarmangalam Yadav1*, Brajesh Nanda Vaidya1*, Kyle Henderson1, Jennifer Frost Lee2, Whitley Marshay Stewart1, Sadanand Arun Dhekney3, Nirmal Joshee1# 1Agricultural Research Station, Fort Valley State University, Fort Valley, USA; 2Wesleyan College, Macon, USA; 3Department of Plant Sciences, University of Wyoming, Sheridan Research & Extension Center, Sheridan, USA. Email: #
[email protected] Received August 5th, 2013; revised September 5th, 2013; accepted October 1st, 2013 Copyright © 2013 Niraj Kumarmangalam Yadav et al. This is an open access article distributed under the Creative Commons Attribu- tion License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. ABSTRACT Paulownia is a genus of fast-growing and multipurpose tree species that is native to China. Due to their rapid growth and value in the timber market, many Paulownia species are cultivated in several temperate zones worldwide. Eco- nomic importance of Paulownia is increasing as new uses and related products are developed. It is also suitable as a lignocellulosic feedstock crop for the bioethanol industry in the Southeastern USA. A number of Paulownia species are valuable sources of secondary metabolites including flavonoids with high antioxidant activities. A high demand for planting material in domestic and international markets for afforestation and bioenergy production has necessitated the development of efficient micropropagation protocols for rapid and mass propagation of Paulownia. Over the past sev- eral decades, research on Paulownia species has been conducted to develop micropropagation, somatic embryogenesis and genetic transformation protocols for use in agroforestry and reforestation programs.