Mohd. Sayeed Akhtar, PhD, is Senior Assistant Professor at Gandhi Faiz-e-Aam College, Shahjahanpur, India. He was formerly an Assistant Professor at Jimma University and Fellow Researcher at Universiti Putra Malaysia's Institute of Tropical Agriculture. He has been listed among the top 2% of scientists in the world consecutively for the past three years, according to Stanford University in the United States. Dr. Akhtar is the author and co-author of many articles in peerreviewed journals and conference proceedings, as well as book chapters and edited books. He also serves the scientific community as an editorial board member and reviewer for several high-impact international journals. His current work focuses on the molecular biotechnology, bioremediation, biomineralization, nano-fertilizers, and nanobiotechnology of rhizospheric plant-microbe interactions. He has received numerous honors and awards for his work.

Khalid Rehman Hakeem, PhD, is Professor at King Abdulaziz University, Saudi Arabia. He was formerly affiliated with the University of Kashmir, Srinagar, India; Universiti Putra Malaysia, Selangor, Malaysia; and Jinan University, Guangzhou, China. Dr. Hakeem has more than 15 years of teaching and research experience in plant ecophysiology, biotechnology and molecular biology, medicinal plant research, plant-microbe-soil interactions, as well as in environmental studies. He is the recipient of several fellowships at both national and international levels. Currently, he is involved with several international research projects with government organizations. To date, Dr. Hakeem has authored and edited more than 95 books and more than 200 research articles, and book chapters in edited volumes. At present, Dr. Hakeem serves as an editorial board member and reviewer for several high-impact international scientific journals. He is included in the advisory board of Cambridge Scholars Publishing, UK.