Genetics and Molecular Biology of Microorganisms, (New March 2000) 3 Nodulation Soil Biology 3 Biochemistry and Physiology of Microorganisms, (New March 2000) 2 Denitrification 2 Microbial Ecology, (New March 2000) 2 Microbial ecology 2 Mycorrhizal fungi 2 Mycorrhizas 2 Nitrification 2 Nitrogen fixation 2 Nitrogen fixing bacteria 2 Rhizosphere 2 Root nodules 2 Soil enzymes 2 Soil microbiology 2 Vesicular arbuscular mycorrhizas 2 Agricultural microbiology 1 Biogeochemistry 1 Denitrifying microorganisms 1 Ectomycorrhizas 1 Endomycorrhizas 1 Enzyme activity 1 Gene expression 1 Genetic markers 1 Genome analysis 1 Genomes 1 Genomics 1 Iron 1 Microbial activities 1