Medicine & Life Sciences
Nitrogenase
100%
Cyanobacteria
49%
Water
42%
Gene Pool
37%
Genes
25%
Deltaproteobacteria
22%
Nitrogen Fixation
19%
Gammaproteobacteria
18%
Bacterial Genes
17%
Anaerobic Bacteria
15%
Budgets
14%
DNA
14%
Cold Temperature
11%
Membrane Proteins
10%
Complementary DNA
10%
Datasets
10%
RNA
8%
Bacteria
8%
Polymerase Chain Reaction
7%
Agriculture & Biology
nitrogenase
70%
surface water
69%
nitrogen-fixing bacteria
45%
Cyanobacteria
33%
gene pool
27%
sampling
22%
genes
21%
delta-Proteobacteria
18%
gamma-Proteobacteria
15%
bacteria
13%
Arctic region
13%
DNA
12%
geographical distribution
10%
RNA
8%
organisms
7%
proteins
4%
Engineering & Materials Science
Surface waters
86%
Genes
60%
Cyanobacteria
52%
Bacteria
23%
DNA
21%
Proteobacteria
19%
Chemical analysis
13%
RNA
12%
Proteins
9%
Mathematics
Water
63%
Gene
61%
Cyanobacteria
57%
Bacteria
26%
CDNA
17%
Sequencing
12%
Protein
10%
Encoding
10%
Divergence
9%
Distinct
7%
N2 Fixation
1%
Earth & Environmental Sciences
gene
48%
surface water
42%
cyanobacterium
29%
DNA
17%
bacterium
13%
warm water
11%
cold water
10%
RNA
10%
fixation
10%
divergence
9%
budget
8%
protein
7%
organism
7%
water
6%
world
5%
distribution
3%
analysis
2%