Dr. Mirza Hasanuzzaman is Professor of Agronomy at Sher-e-Bangla Agricultural University in Dhaka. He is a specialist in agronomy, plant stress responses, and crop physiology. His current work is focused on the physiological and molecular mechanisms of environmental stress tolerance (salinity, drought, flood, and heavy metals/metalloids). Dr. Hasanuzzaman has published over 60 articles in peer-reviewed journals. He has edited six books and written 30 book chapters on important aspects of plant physiology, plant stress tolerance, and crop production. Majeti Narasimha Vara Prasad is an emeritus professor in the School of Sciences at the University of Hyderabad, Hyderabad, India. He also taught at the North Eastern Hill University, Shillong, India. He has made significant contributions to the field of plant-metal interactions, bioremediation, and bioeconomy. He has also published over 210 research articles in peer-reviewed journals with Google Scholar h-index of 61. He is the author, co-author, editor and co-editor of several books by leading international publishers. Dr. Masayuki Fujita is a Professor in the Department of Plant Science, Faculty of Agriculture, Kagawa University, Kagawa, Japan. He received his B.Sc. in Chemistry from Shizuoka University, Shizuoka, and his M.Agr. and Ph.D. in Plant Biochemistry from Nagoya University, Nagoya, Japan. His research interests include physiological, biochemical and molecular biological responses based on secondary metabolism in plants under biotic (pathogenic fungal infection) and abiotic (salinity, drought, extreme temperatures and heavy metals) stresses; phytoalexin, cytochrome P-450, glutathione S-transferase, phytochelatin and redox reaction and antioxidants. He has over 150 peer-reviewed publications and has multiple books.