Medicine & Life Sciences
Ammonia
100%
Archaea
82%
Soil
70%
Nitrification
36%
Bacteria
25%
ammonia monooxygenase
23%
Medicago truncatula
22%
Sinorhizobium
15%
Genome
14%
Ecosystem
13%
Genes
12%
Forests
12%
Growth
11%
Ammonium Compounds
11%
Temperature
10%
Ecology
10%
16S Ribosomal RNA
9%
Phylogeny
9%
Symbiosis
8%
Horizontal Gene Transfer
8%
Nitrogen Cycle
8%
Microbiota
8%
Genomics
8%
Sinorhizobium meliloti
7%
Gene Duplication
7%
rRNA Genes
7%
Microplastics
7%
Rhizobium
7%
Melilotus
7%
Nitrous Oxide
6%
Medicago
6%
Archaeal Genome
6%
Nitrogen Fixation
6%
Gene Drive Technology
6%
Pseudomonas fluorescens
5%
Oxygen
5%
Type III Secretion Systems
5%
Nitrogen
5%
Hydrocarbons
5%
Agriculture & Biology
ammonia
68%
Archaea
62%
oxidants
33%
nitrification
20%
forest soils
18%
soil
17%
nitrous oxide
17%
bacteria
17%
Medicago truncatula
15%
microbial communities
14%
acid soils
12%
oxidation
12%
ammonia monooxygenase
12%
Sinorhizobium
11%
nitrous oxide production
11%
soil pH
11%
Ensifer meliloti
10%
history
9%
phylogeny
9%
ecological differentiation
9%
niches
9%
extinction
7%
ammonium
7%
nitric oxide
7%
Sinorhizobium medicae
6%
genes
6%
ecological function
6%
biogeography
6%
agricultural soils
6%
new order
5%
Elaeis guineensis
5%
nodulation
5%
tropical soils
5%
oxygen
5%
peat soils
5%
microbial ecology
5%
temperature
5%
dispersants
5%
type III secretion system
5%
Medicago
5%
symbiosis
5%
Earth & Environmental Sciences
ammonia
61%
bacterium
26%
soil
22%
gene
16%
nitrification
16%
forest soil
16%
microbial community
15%
nitrous oxide
15%
niche
12%
phylogenetics
12%
oxidation
10%
nodulation
10%
agricultural soil
9%
nitric oxide
8%
symbiosis
7%
perturbation
7%
extinction
7%
ammonium
6%
history
6%
rhizobacterium
6%
soil fertilization
6%
oil
5%
genomics
5%
genetic diversity
5%
sanction
5%
nitrogen fixation
5%
genome
5%
matric potential
5%
temperature
5%
incubation
5%
tropical soil
5%
oxygen
5%
nitrogen
5%
grassland soil
5%