Industrial, medical and environmental applications of microorganisms' offers an excellent opportunity to learn about new insights, methods, techniques and advances in applied microbiology. It is useful not only for those traditionally involved in this research area but for everyone that needs to keep up with this diverse discipline. The articles are written by researchers from around the world and focus on seven themes: - Environmental microbiology -Agriculture, soil and forest microbiology -Food microbiology -Industrial microbiology - Medical microbiology -Biotechnologically relevant enzymes and proteins - Methods and techniques - education This book contains a compilation of papers presented at the V International Conference on Environmental Industrial and Applied Microbiology (BioMicroWorld2013), held in Madrid, Spain, in October 2013.