Dr. Ajay Kumar is currently working as an assistant professor at Amity Institute of Biotechnology, Amity University, Noida, India. Dr. Kumar recently completed his tenure as a visiting scientist from Agriculture Research Organization, Volcani Center, Israel. He has published more than 175 research, review articles, and book chapters in international and national journals. He serves as an associate editor for Frontiers in Microbiology and as guest editor for various journals such as Plants, Microorganisms, and Sustainability. Dr. Kumar has also edited more than 32 books with the leading publishers such as Elsevier, Springer, and Wiley. Dr. Kumar’s research experience is in the field of plant–microbe interactions, postharvest management, cyanobacterial biology, and so on. Muhammad Bilal is an associate professor at the Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland. He has published more than 350 research papers in leading international journals and also serves as an Associate Editor for several of these journals. Dr. Gustavo Santoyo obtained his Doctor of Science degree in Biomedical Sciences at the National Autonomous University of Mexico (UNAM) in 2005 and did postdoctoral studies during 2005-2007 at the Center for Cancer Research, NIH, USA, as well as a sabbatical year (2014-2015) at the Wilfrid Laurier University, Canada. He is currently a full-time research professor at the Institute of Chemical and Biological Research of the Universidad Michoacana de San Nicolás de Hidalgo, in Morelia, Mexico. His research interest is led towards plant-microbe interactions, biocontrol of fungal pathogens, development of bioinoculants for agricultural crops, and basic research on microbial diversity of extreme environments. In these research areas has published 80 scientific publications with more than 4000 citations and a h-factor 29. In the Academy, He has supervised more than 30 doctoral, master and undergrad thesis. Dr. Santoyo is a member of the Mexican Academy of Sciences and the National Research System (SNI) of the National Council of Science and Technology (CONACYT) in Mexico. Prof. Joginder Singh is a Professor in the Department of Botany at Nagaland University in India. Previously, he has worked as Young Scientist at Microbial Biotechnology and Biofertilizer Laboratory, Department of Botany, Jai Narain Vyas University in Department of Science and Technology, Govt. of India. He is an active member of various scientific societies and organizations including, Association of Microbiologists of India, Indian Society of Salinity Research Scientists, Indian Society for Radiation Biology, and European Federation of Biotechnology. He has published extensively, including both journal papers and book chapters. He serves as a reviewer for many prestigious journals, including Current Research in Engineering, Science and Technology, Journal of Cleaner Production, Science of the Total Environment, Environmental Monitoring and Assessment, Pedosphere, Soil and Sediment Contamination, Symbiosis, International Journal of Phytoremediation, Ecotoxicology and Environmental Safety, Annals of Agricultural Sciences, Annals of the Brazilian Academy of Sciences and many more.