R.Z. Sayyed is Professor and Head of the Department of Microbiology at PSGVP Mandal's Arts, Science & Commerce College, Shahada (KBC North Maharshtra University, Jalgaon), India. He is the President of the Indian Chapter of Asian PGPR Society for Sustainable Agriculture. Hesham Ali El-Enshasy is Professor in Bioprocess Engineering, School of Chemical Engineering and Energy, Faculty of Engineering, and Director for the Institute of Bioproducts Development, University Technology Malaysia (UTM). He is also the Co-Chair for Food, Pharmaceutical & Bio-Engineering Division, Division (Food), American Institute of Chemical Engineering (AIChE). Bee Hameeda is Assistant Professor in Microbiology, University College of Science, Osmania University (OU), Hyderabad, India. She has been Visiting Scientist at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) and Post-Doctoral Fellow at the Department of Plant Science, University of Manitoba, Winnipeg, Canada.