Bacteria 223 Bacteriology 49 Fungi 35 Microbiology 34 bacteria 29 Prokaryotes (Bacteria) 24 Viruses 20 Plant diseases 18 Algae 17 Biology 16 Industrial microbiology 13 Microorganisms 11 Protozoa 11 Plant pathogens 9 Plants 9 bacteriology 9 Environmental Microbiology 8 Genetics 8 Microbes 8 Microbial genetics 8 Microbial metabolism 8 Microorganism 8 Pathogenic bacteria 8 Plant Pests, (New March 2000) 8 Plant pathogenic bacteria 8 Plant pests 8 Prokaryotes 8 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 8 fungi 8 BACTERIA 7