Microorganisms 161 Microbiology, microorganisms 93 Microbiology 65 Microorganisms, fungi & algae 32 Life sciences 31 Microorganism 27 Biology 25 microorganisms 23 Fungi 20 Bacteria 18 Microbial ecology 12 Plant diseases 11 Drug resistance in microorganisms 10 Genetics and Molecular Biology of Microorganisms, (New March 2000) 10 Microbes 10 Mycology 10 Nitrogen 10 Plants 10 Algae 9 Biochemistry and Physiology of Microorganisms, (New March 2000) 9 Physiology 9 Pathogenic microorganisms 8 Plant pathogens 8 Soil Biology 8 Biotechnology 7 Environmental Microbiology 7 Industrial microbiology 7 Microbial Ecology, (New March 2000) 7 Nitrogen-fixing microorganisms 7 Prokaryotes 7