Molecular microbiology

Molecular microbiology is the branch of microbiology devoted to the study of the molecular principles of the physiological processes involved in the life cycle of prokaryotic and eukaryotic microorganisms such as bacteria, viruses, unicellular algae, fungi, and protozoa. This includes gene expression and regulation, genetic transfer, the synthesis of macromolecules, sub-cellular organization, cell to cell communication, and molecular aspects of pathogenicity and virulence