Medicine & Life Sciences
Ammonia
100%
Archaea
80%
Soil
65%
Nitrification
37%
Bacteria
26%
ammonia monooxygenase
25%
Medicago truncatula
23%
Sinorhizobium
16%
Ecosystem
14%
Genome
14%
Forests
12%
Ammonium Compounds
12%
Growth
11%
Genes
11%
Ecology
10%
Temperature
10%
Symbiosis
8%
Horizontal Gene Transfer
8%
16S Ribosomal RNA
8%
Nitrogen Cycle
8%
Microbiota
8%
Genomics
8%
Sinorhizobium meliloti
7%
Gene Duplication
7%
Rhizobium
7%
Melilotus
7%
Nitrous Oxide
7%
Medicago
6%
Archaeal Genome
6%
rRNA Genes
6%
Nitrogen Fixation
6%
Gene Drive Technology
6%
Pseudomonas fluorescens
6%
Oxygen
5%
Type III Secretion Systems
5%
Nitrogen
5%
Hydrocarbons
5%
1-octyne
5%
Data Mining
5%
Genetic Variation
5%
Agriculture & Biology
ammonia
68%
Archaea
61%
oxidants
34%
nitrification
21%
forest soils
19%
nitrous oxide
18%
soil
18%
bacteria
17%
Medicago truncatula
16%
microbial communities
14%
oxidation
13%
ammonia monooxygenase
12%
Sinorhizobium
12%
nitrous oxide production
12%
soil pH
11%
Ensifer meliloti
11%
history
10%
phylogeny
10%
ecological differentiation
10%
niches
9%
acid soils
8%
extinction
8%
ammonium
7%
nitric oxide
7%
Sinorhizobium medicae
7%
genes
6%
ecological function
6%
biogeography
6%
agricultural soils
6%
Elaeis guineensis
5%
nodulation
5%
tropical soils
5%
oxygen
5%
peat soils
5%
microbial ecology
5%
dispersants
5%
type III secretion system
5%
Medicago
5%
symbiosis
5%
temperature
5%
hydrocarbons
5%
bacterial communities
5%
Earth & Environmental Sciences
ammonia
64%
bacterium
29%
soil
20%
nitrification
18%
forest soil
17%
nitrous oxide
16%
microbial community
16%
gene
14%
agricultural soil
14%
niche
12%
phylogenetics
12%
oxidation
11%
nodulation
10%
nitric oxide
9%
symbiosis
8%
perturbation
7%
extinction
7%
ammonium
6%
history
6%
rhizobacterium
6%
soil fertilization
6%
oil
6%
genetic diversity
6%
sanction
5%
nitrogen fixation
5%
matric potential
5%
nitrogen
5%
incubation
5%
tropical soil
5%
oxygen
5%
grassland soil
5%
species occurrence
5%
peat soil
5%
community response
5%