Endomycorrhizas Mycorrhizal fungi 4 Mycorrhizas 3 Soil Biology 3 Vesicular arbuscular mycorrhizas 3 Genetics and Molecular Biology of Microorganisms, (New March 2000) 2 Microbial Ecology, (New March 2000) 2 Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 2 Nitrogen fixing bacteria 2 Plant pathogens 2 Soil microbiology 2 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 2 Actinobacteria 1 Agricultural microbiology 1 Animal Ecology 1 Arthropod communities 1 Biodiversity 1 Biofertilizers 1 Biogeochemistry 1 Biological Resources (Animal) 1 Biological Resources (Plant) 1 Defence mechanisms 1 Denitrification 1 Denitrifying microorganisms 1 Disease resistance 1 Dissertations, Academic (Ph.D) 1 Ectomycorrhizas 1 Forest soils 1 Forests 1 Forests and Forest Trees (Biology and Ecology) 1