Naga Raju Maddela, received his M.Sc. (1996–1998) and Ph.D. (2012) in Microbiology from Sri Krishnadevaraya University, Anantapuramu, India. During his doctoral program in the area of Environmental Microbiology, he investigated the effects of industrial effluents/insecticides on soil microorganisms and their biological activities and worked as a Faculty in Microbiology for 17 years, teaching undergraduate and postgraduate students. He is currently working as a Professor at Departamento de Ciencias Biológicas, Facultad de Ciencias de la Salud, Universidad Técnica de Manabí, Portoviejo–130105, ECUADOR. He has published 7 Books (Springer), 15 Chapters (InTech Open / Springer) and 50 research papers. Aransiola Sesan Abiodun, Senior Scientific Officer, M.Tech., (Ph.D.,), Bioresources Development Centre, National Biotechnology Development Agency (NABDA), KM 5, Ogbomoso/Iresepa Road, P.M.B. 3524, Ogbomoso, Oyo State, Nigeria. He has published over 40 referred articles in professional Journals including five book chapters. Also, he is a senior scientific officer at Bioresources Development Centre, National Biotechnology Development Agency, Nigeria. His area of interest is Environmental Microbiology with research area in Phytoremediation, Biosorption and Bioremediation of soil contaminated Environment. Abiodun is a member of Nigerian Society for Microbiology, American Society for Microbiology.Ram Prasad, Ph.D. is associated with Department of Botany, Mahatma Gandhi Central University, Motihari, Bihar, India. His research interest includes applied & environmental microbiology, plant-microbe-interactions, sustainable agriculture and nanobiotechnology. He has more than two hundred publications to his credit, including research papers, review articles & book chapters and six patents issued or pending, edited or authored several books. He served as Assistant Professor Amity University U.P, India; Visiting Assistant Professor, Whiting School of Engineering, Department of Mechanical Engineering at Johns Hopkins University, Baltimore, United States and Research Associate Professor at School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China.

• 1. Ecological Interplays in microbial enzymology – an introduction.- 2. Diversity of Microbial Enzymes in the Soil Ecosystem.- 3. Microbial Enzymes of Wastewater and Sludge.- 4. Occurrence And Distribution Of Microbial Enzymes Of Fresh Water.- 5. Marine Microbial Enzymes - An Overview.- 6. Hydrolytic enzymes producing bacteria from Algerian hot springs:  attractive industrial molecules.- 7. Enzymology of Microbial Biofilms.- 8. An Oxisoil "Arenito Cauia" Attributes Changed After Crop-Livestock Integration System.- 9. Microbial Enzymes – Role in the Soil Fertility.- 10. Microbial Enzymes In The Recycling Of Wastes.- 11. Soil Microbial Enzymes And Mitigation Of Heavy Metals Uptake By Plants.- 12. Communities Of Microbial Enzymes And Biodegradation Of Persistent Environmental Pollutants.- 13. Implication of enzymes in the adaptation of extremophilic microbes.- 14. Application Of Microbial Enzymes In Industries And Medicine.- 15. Microbial Enzymes in the Biosynthesis of Metal Nano Particles.- 16. Effect Of Agrochemicals On Soil Microbial Enzymes.- 17. Effects Of Aquatic (Freshwater And Marine) Pollution On Microbial Enzyme Activities.- 18. In silico analysis of biochemical pathways in bacterial enzyme synthesis.- 19. Microbial enzymes for sustainable development - future guidelines.