Earth & Environmental Sciences
hopanoid
90%
cyanobacterium
54%
phylogenetics
48%
membrane
22%
distribution
21%
nitrogen fixation
20%
nitrogen
20%
bacterium
10%
nitrogen cycle
10%
toxin
8%
physiology
8%
carbon cycle
8%
biomarker
7%
lipid
7%
marker
7%
physical property
6%
organism
5%
permeability
5%
oxygen
5%
ocean
4%
effect
1%
Agriculture & Biology
hopanoids
100%
Cyanobacteria
52%
phylogeny
33%
nitrogen fixation
25%
enrichment culture
20%
nitrogen
14%
nitrogen-fixing cyanobacteria
12%
carbon cycle
11%
nitrogen cycle
11%
aquatic bacteria
10%
membrane permeability
9%
oceans
8%
biomarkers
7%
toxins
6%
physical properties
6%
physiology
6%
anti-infective agents
6%
oxygen
5%
organisms
4%
bacteria
4%
lipids
4%