Bacteria 223 Microbiology 88 Bacteriology 82 Materia medica, Vegetable 59 Fungi 37 Genetics 30 bacteria 29 Plants 25 Prokaryotes (Bacteria) 24 Prokaryotae 22 Medical microbiology 21 Medicinal plants 20 Viruses 20 Algae 19 Biology 19 Plant diseases 19 Genomics 18 Biotechnology 17 Botany 16 Genetic engineering 16 Industrial microbiology 15 Microorganisms 15 Recent progress in medicinal plants -- Indexes--- Medicinal plants -- Research -- Indexes-- Materia medica, Vegetable -- Research -- Indexes 15 Drugs (Materia medica)-- Pharmacology 14 Molecular biology 14 Botany, Medical 13 Diagnostic microbiology 13 Microbiological Techniques 13 Soil Science and Agricultural Chemistry 13 Agronomy 12