| 5689 | Mycorrhizae |
| 2571 | Plant Roots |
| 2011 | Symbiosis |
| 1476 | Soil Microbiology |
| 1151 | Soil |
| 893 | Fungi |
| 878 | Phylogeny |
| 832 | Ecosystem |
| 712 | Glomeromycota |
| 675 | Plants |
| 604 | DNA, Fungal |
| 594 | Biomass |
| 585 | Biodiversity |
| 574 | Molecular Sequence Data |
| 553 | Trees |
| 532 | Nitrogen |
| 496 | Basidiomycota |
| 481 | Soil Pollutants |
| 470 | Sequence Analysis, DNA |
| 451 | Phosphorus |
| 444 | Plant Proteins |
| 436 | Gene Expression Regulation, Plant |
| 425 | Seedlings |
| 384 | Species Specificity |
| 356 | Plant Leaves |
| 344 | Spores, Fungal |
| 320 | Carbon |
| 306 | Plant Shoots |
| 291 | Ascomycota |
| 283 | Biodegradation, Environmental |
| 274 | Pinus |
| 256 | Fungal Proteins |
| 250 | DNA, Ribosomal Spacer |
| 246 | Hyphae |
| 239 | Agriculture |
| 235 | Mycelium |
| 231 | Medicago truncatula |
| 225 | Animals |
| 221 | Signal Transduction |
| 216 | Forests |
| 216 | Bacteria |
| 212 | Base Sequence |
| 197 | Orchidaceae |
| 197 | DNA, Ribosomal |
| 184 | Genes, Plant |
| 181 | Zea mays |
| 181 | Polymerase Chain Reaction |
| 177 | Water |
| 170 | Genetic Variation |
| 169 | Poaceae |
| 169 | China |
| 163 | Phosphates |
| 162 | Models, Biological |
| 160 | Gene Expression Regulation, Fungal |
| 159 | Plant Development |
| 159 | Biological Evolution |
| 157 | Rhizosphere |
| 156 | Photosynthesis |
| 153 | Mutation |
| 152 | Fabaceae |
| 150 | Stress, Physiological |
| 149 | Lycopersicon esculentum |
| 144 | Gene Expression Profiling |
| 143 | Plant Diseases |
| 140 | Fertilizers |
| 139 | Metals, Heavy |
| 138 | Quercus |
| 138 | Polymorphism, Restriction Fragment Length |
| 137 | Time Factors |
| 137 | Colony Count, Microbial |
| 131 | Seasons |
| 131 | Cadmium |
| 131 | Biological Transport |
| 126 | Genotype |
| 125 | Hydrogen-Ion Concentration |
| 121 | Rhizobium |
| 119 | Phenotype |
| 115 | Genes, Fungal |
| 111 | Droughts |
| 110 | Seeds |
| 107 | Plants, Genetically Modified |
| 106 | Agaricales |
| 105 | Carbon Dioxide |
| 105 | Amino Acid Sequence |
| 104 | Plant Growth Regulators |
| 98 | Oryza |
| 97 | Carbon Isotopes |
| 96 | Populus |
| 96 | Genome, Fungal |
| 95 | Picea |
| 95 | Nitrogen Fixation |
| 95 | Lotus |
| 93 | Tropical Climate |
| 92 | Zinc |
| 92 | Plant Physiological Phenomena |
| 91 | Cluster Analysis |
| 91 | Adaptation, Physiological |
| 90 | Pinus sylvestris |
| 90 | Nitrogen Isotopes |
| 89 | Crops, Agricultural |
| 88 | Magnoliopsida |
| 86 | Microbiota |
| 85 | Geography |
| 84 | Germination |
| 83 | Root Nodules, Plant |
| 83 | Host-Pathogen Interactions |
| 83 | Evolution, Molecular |
| 81 | Triticum |
| 79 | Antioxidants |
| 77 | Ecology |
| 76 | Humans |
| 76 | Analysis of Variance |
| 75 | Transcriptome |
| 75 | Temperature |
| 75 | Endophytes |
| 73 | RNA, Fungal |
| 73 | Lactones |
| 73 | Ericaceae |
| 73 | Climate |
| 71 | Mining |
| 71 | DNA Primers |
| 71 | Chlorophyll |
| 70 | Population Dynamics |
| 70 | Grassland |
| 69 | Phosphate Transport Proteins |
| 66 | Sequence Alignment |
| 66 | Plant Root Nodulation |
| 66 | Fruiting Bodies, Fungal |
| 65 | Soybeans |
| 65 | Lead |
| 65 | Laccaria |
| 64 | Mycobiome |
| 64 | Japan |
| 63 | RNA, Ribosomal, 18S |
| 62 | Sodium Chloride |
| 62 | Fatty Acids |
| 62 | Daucus carota |
| 62 | Climate Change |
| 61 | RNA, Ribosomal, 16S |
| 61 | Minerals |
| 61 | Environmental Monitoring |
| 61 | Environment |
| 60 | Reverse Transcriptase Polymerase Chain Reaction |
| 60 | RNA, Messenger |
| 60 | Culture Media |
| 59 | Copper |
| 58 | Transcription, Genetic |
| 56 | Cloning, Molecular |
| 55 | Indoleacetic Acids |
| 54 | DNA, Plant |
| 54 | Altitude |
| 53 | Up-Regulation |
| 53 | Potassium |
| 53 | DNA, Bacterial |
| 53 | Biota |
| 52 | Trifolium |
| 52 | Plantago |
| 52 | Introduced Species |
| 52 | High-Throughput Nucleotide Sequencing |
| 52 | Arsenic |
| 51 | Medicago sativa |
| 50 | Nitrates |
| 49 | Conservation of Natural Resources |
| 49 | Carbohydrate Metabolism |
| 48 | Desert Climate |
| 48 | Calcium |
| 47 | Salinity |
| 47 | Promoter Regions, Genetic |
| 47 | Lolium |
| 47 | Fagus |
| 47 | Environmental Restoration and Remediation |
| 46 | Sorghum |
| 46 | Pseudotsuga |
| 46 | Brazil |
| 45 | RNA, Ribosomal |
| 45 | Eucalyptus |
| 45 | Argentina |
| 44 | Tobacco |
| 44 | Mycological Typing Techniques |
| 44 | Mexico |
| 44 | Host Specificity |
| 44 | DNA, Intergenic |
| 43 | Oxidative Stress |
| 43 | Genomics |
| 42 | Spain |
| 42 | RNA, Plant |
| 42 | Oxylipins |
| 41 | Principal Component Analysis |
| 41 | Medicago |
| 41 | Gene Expression |
| 40 | Cyclopentanes |
| 40 | Bacterial Physiological Phenomena |
| 39 | Peas |
| 39 | Genetic Complementation Test |
| 39 | Flowers |
| 39 | Europe |
| 38 | Oligonucleotide Array Sequence Analysis |
| 38 | Metals |
| 38 | Iron |
| 38 | Hydrogen Peroxide |
| 38 | Genes, rRNA |
| 38 | Betula |
| 38 | Agricultural Inoculants |
| 37 | Transcription Factors |
| 37 | Plant Stems |
| 37 | Nutrients |
| 37 | Germany |
| 37 | Cell Wall |
| 37 | Abscisic Acid |
| 36 | Rain |
| 36 | DNA, Complementary |
| 36 | Arabidopsis |
| 35 | Herbivory |
| 35 | Glycoproteins |
| 35 | Aquaporins |
| 34 | Tricholoma |
| 34 | Superoxide Dismutase |
| 34 | Sequence Homology, Amino Acid |
| 34 | Reproduction |
| 34 | Hordeum |
| 34 | Genetic Markers |
| 34 | Carotenoids |
| 34 | Carbon Cycle |
| 34 | Asteraceae |
| 33 | Real-Time Polymerase Chain Reaction |
| 33 | Proteomics |
| 33 | Organic Chemicals |
| 33 | Microbial Consortia |
| 33 | Meristem |
| 33 | Fusarium |
| 33 | Computational Biology |
| 32 | Wetlands |
| 32 | Rhizobiaceae |
| 32 | Phenols |
| 32 | Microsatellite Repeats |
| 32 | Membrane Transport Proteins |
| 32 | Flavonoids |
| 32 | Cell Nucleus |
| 32 | Bayes Theorem |
| 32 | Amanita |
| 31 | Wood |
| 31 | RNA Interference |
| 31 | Proteome |
| 31 | Plant Transpiration |
| 31 | Oxidoreductases |
| 31 | Alnus |
| 30 | Salix |
| 30 | Reactive Oxygen Species |
| 30 | Phospholipids |
| 30 | Phaseolus |
| 30 | Models, Genetic |
| 30 | Mediterranean Region |
| 30 | France |
| 30 | Environmental Pollution |
| 30 | Chromatography, High Pressure Liquid |
| 30 | Calcium Signaling |
| 29 | Polymorphism, Genetic |
| 29 | Plants, Medicinal |
| 29 | Plant Immunity |
| 29 | Oxidation-Reduction |
| 29 | Nickel |
| 29 | Microscopy, Electron, Scanning |
| 29 | Microscopy, Confocal |
| 29 | Lipopolysaccharides |
| 29 | Light |
| 29 | Kinetics |
| 29 | Heterotrophic Processes |
| 29 | Fruit |
| 29 | Cell Membrane |
| 29 | California |
| 29 | Bacterial Proteins |
| 28 | Transformation, Genetic |
| 28 | Saccharomyces cerevisiae |
| 28 | Linear Models |
| 28 | Host-Parasite Interactions |
| 28 | Australia |
| 28 | Arctic Regions |
| 27 | Pseudomonas |
| 27 | Likelihood Functions |
| 27 | Italy |
| 27 | Industrial Waste |
| 27 | Dose-Response Relationship, Drug |
| 26 | Tracheophyta |
| 26 | Selection, Genetic |
| 26 | India |
| 26 | Hebeloma |
| 26 | Gene Library |
| 25 | Solanum tuberosum |
| 25 | Quaternary Ammonium Compounds |
| 25 | Polycyclic Aromatic Hydrocarbons |
| 25 | Phylogeography |
| 25 | Peroxidase |
| 25 | Multigene Family |
| 25 | Metabolic Networks and Pathways |
| 25 | Hot Temperature |
| 25 | Genome, Plant |
| 25 | Fungicides, Industrial |
| 25 | Feeding Behavior |
| 25 | Fagaceae |
| 25 | Cold Temperature |
| 25 | Chitin |
| 25 | Acid Phosphatase |
| 24 | Trichoderma |
| 24 | Tibet |
| 24 | Sequence Analysis, RNA |
| 24 | Plant Exudates |
| 24 | Onions |
| 24 | Molecular Structure |
| 24 | Lipid Metabolism |
| 24 | Insecta |
| 24 | Fires |
| 24 | Charcoal |
| 24 | Catalase |
| 23 | Sweden |
| 23 | Salt Tolerance |
| 23 | Rhizoctonia |
| 23 | RNA, Ribosomal, 28S |
| 23 | Metabolome |
| 23 | Glucose |
| 23 | Genetics, Population |
| 23 | Forestry |
| 23 | Expressed Sequence Tags |
| 23 | Ethylenes |
| 22 | Trace Elements |
| 22 | Salicylic Acid |
| 22 | Pseudomonas fluorescens |
| 22 | Plant Extracts |
| 22 | Olea |
| 22 | Mycology |
| 22 | Multivariate Analysis |
| 22 | Mass Spectrometry |
| 22 | Manganese |
| 22 | Helianthus |
| 22 | Disasters |
| 22 | Carbohydrates |
| 22 | Amino Acids |
| 22 | Acacia |
| 21 | Taiga |
| 21 | Research |
| 21 | Proline |
| 21 | Pest Control, Biological |
| 21 | Norway |
| 21 | North America |
| 21 | Microscopy |
| 21 | Microbial Interactions |
| 21 | Lignin |
| 21 | Lettuce |
| 21 | History, 20th Century |
| 21 | Green Fluorescent Proteins |
| 21 | Gene Expression Regulation, Enzymologic |
| 21 | Food Chain |
| 21 | Dehydration |
| 21 | DNA Fingerprinting |
| 21 | Antibiosis |
| 20 | Silicon Dioxide |
| 20 | Plant Stomata |
| 20 | Nitrogen Cycle |
| 20 | Microscopy, Electron, Transmission |
| 20 | MicroRNAs |
| 20 | Haplotypes |
| 20 | Frankia |
| 20 | Finland |
| 20 | Cucumis sativus |
| 20 | Chitinases |
| 20 | Calcium-Calmodulin-Dependent Protein Kinases |
| 20 | Biological Availability |
| 20 | Aluminum |
| 19 | Vitis |
| 19 | Pollination |
| 19 | Phosphoric Monoester Hydrolases |
| 19 | Isotope Labeling |
| 19 | Host Microbial Interactions |
| 19 | Edible Grain |
| 19 | DNA, Mitochondrial |
| 19 | Atmosphere |
| 19 | Alleles |
| 19 | Alkaline Phosphatase |
| 19 | Abies |
| 18 | Sucrose |
| 18 | Sodium |
| 18 | Sequence Homology, Nucleic Acid |
| 18 | Reproducibility of Results |
| 18 | Ozone |
| 18 | Metabolomics |
| 18 | Guyana |
| 18 | Demography |
| 18 | DNA Barcoding, Taxonomic |
| 18 | Chromium |
| 18 | Cesium Radioisotopes |
| 18 | Canada |
| 18 | Biological Assay |
| 18 | Arabidopsis Proteins |
| 18 | Ammonia |
| 18 | Acclimatization |
| 17 | Population Density |
| 17 | Poncirus |
| 17 | Molecular Sequence Annotation |
| 17 | Models, Theoretical |
| 17 | Lipid Peroxidation |
| 17 | Larix |
| 17 | Hydrocarbons |
| 17 | Herbicides |
| 17 | Hepatophyta |
| 17 | Glutathione |
| 17 | Gene Silencing |
| 17 | Ferns |
| 17 | Estonia |
| 17 | Down-Regulation |
| 17 | Disease Resistance |
| 17 | Biosynthetic Pathways |
| 17 | Bacillus |
| 17 | Antifungal Agents |
| 17 | Adaptation, Biological |
| 16 | Terpenes |
| 16 | Switzerland |
| 16 | Sulfur |
| 16 | Rhizome |
| 16 | RNA, Ribosomal, 5.8S |
| 16 | Pteris |
| 16 | Protein Transport |
| 16 | Pinaceae |
| 16 | Petroleum |
| 16 | Microbial Viability |
| 16 | Manure |
| 16 | Homeostasis |
| 16 | History, 21st Century |
| 16 | Gene Regulatory Networks |
| 16 | Gas Chromatography-Mass Spectrometry |
| 16 | Enzymes |
| 16 | Ecuador |
| 16 | Cytoplasm |
| 16 | Biomarkers |
| 15 | Striga |
| 15 | Soil Pollutants, Radioactive |
| 15 | Sinorhizobium meliloti |
| 15 | Recombinant Proteins |
| 15 | Protein Kinases |
| 15 | Plant Epidermis |
| 15 | Peroxidases |
| 15 | Mutagenesis, Insertional |
| 15 | Malondialdehyde |
| 15 | Gene Expression Regulation |
| 15 | Endangered Species |
| 15 | Electrophoresis, Gel, Two-Dimensional |
| 15 | Crop Production |
| 15 | Cistaceae |
| 15 | Cation Transport Proteins |
| 15 | Carbon Radioisotopes |
| 15 | British Columbia |
| 15 | Biological Transport, Active |
| 14 | Yeasts |
| 14 | Volatile Organic Compounds |
| 14 | United States |
| 14 | Tylenchoidea |
| 14 | Solubility |
| 14 | Sewage |
| 14 | Recombination, Genetic |
| 14 | Quantitative Trait, Heritable |
| 14 | Polymorphism, Single Nucleotide |
| 14 | Plant Weeds |
| 14 | Oregon |
| 14 | New Zealand |
| 14 | Nematoda |
| 14 | Mitochondria |
| 14 | Microscopy, Fluorescence |
| 14 | Metallothionein |
| 14 | Metagenomics |
| 14 | Lipids |
| 14 | Glucuronidase |
| 14 | Gibberellins |
| 14 | Genetic Speciation |
| 14 | Fragaria |
| 14 | Flax |
| 14 | Ergosterol |
| 14 | Environmental Pollutants |
| 14 | Environmental Microbiology |
| 14 | Citrus |
| 14 | Carboxylic Acids |
| 14 | Anti-Bacterial Agents |
| 14 | Andropogon |
| 14 | Amplified Fragment Length Polymorphism Analysis |
| 14 | Ammonium Compounds |
| 14 | Acer |
| 13 | Uranium |
| 13 | Tubulin |
| 13 | Streptomyces |
| 13 | Sensitivity and Specificity |
| 13 | Secondary Metabolism |
| 13 | Rosaceae |
| 13 | Robinia |
| 13 | Regression Analysis |
| 13 | Protein Structure, Tertiary |
| 13 | Pinus taeda |
| 13 | Phytophthora |
| 13 | Photosystem II Protein Complex |
| 13 | Phosphorus Radioisotopes |
| 13 | Oligochaeta |
| 13 | Models, Molecular |
| 13 | Magnetic Resonance Spectroscopy |
| 13 | Glycine |
