Earth and Planetary Sciences
Nitrous Oxide
100%
Nitrification
82%
Denitrification
81%
Nitrous Oxide
67%
Nitrite
64%
Phytoplankton
43%
Chesapeake Bay
41%
Nitrous Oxide Production
38%
Nitrogen Cycle
37%
Water Column
35%
South Pacific
33%
North Pacific
28%
Community Composition
27%
Organic Matter
27%
Coastal Water
22%
Salt Marsh
21%
Arabian Sea
21%
Methane
21%
Phylogenetics
19%
Marine Environment
18%
Salinity
17%
Mesocosm
17%
Denitrifiers
16%
Nitrogen Dioxide
16%
Sargasso Sea
15%
Peru
15%
Southern Ocean
15%
Oxidizer
14%
Surface Water
14%
Microbial Community
14%
Atmospherics
14%
Estuarine Sediment
13%
Amino Acid
13%
Euphotic Zone
13%
Photic Zone
13%
Organic Carbon
13%
North Atlantic
13%
Planetary Atmosphere
12%
Mixed Layer
12%
Nitrifying Bacterium
12%
Ocean Surface
11%
Southern California
10%
Nitrate Reduction
10%
Diatom
10%
Open Ocean
10%
Nitrous Oxide Reductase Gene
9%
Greenhouse Gas
9%
Pacific Ocean
9%
Global Ocean
8%
California
8%
Terrestrial Environment
7%
Environmental Gradient
7%
Antarctic Region
7%
Phytoplankton Bloom
7%
English Channel
7%
Carbon Dioxide
7%
Nearshore Water
7%
Anoxic Sediment
7%
Nitrogen 15
6%
Decoupling
6%
Particulate Organic Matter
6%
North Pacific Ocean
6%
Coral Reef
6%
Coastal Sediment
6%
Marine Sediment
6%
Aquatic Ecosystem
6%
Deep Water
6%
Climate Change
6%
Ecosystem Function
6%
Generation Time
6%
Surface Layer
6%
Stoichiometry
6%
Isotope Labeling
5%
Inorganic Nitrogen
5%
Water Mass
5%
Fossil
5%
Isotopic Analysis
5%
Nucleic Acid
5%
Marine Bacteria
5%
Cold Water
5%
Microbial Mat
5%
Plasmid
5%
Dynamic Range
5%
Biological Nitrogen Fixation
5%
Freshwater Biology
5%
Picoplankton
5%
Limnology
5%
Teleost
5%
Maryland
5%
Biological Pump
5%
Net Primary Production
5%
Benthos
5%
Freshwater Input
5%
Fractionation
5%
North Atlantic Ocean
5%
Spatio-Temporal Variability
5%
Oil Spill
5%
Carbon Sequestration
5%
Gas Exchange
5%
Hypolimnion
5%
Immunology and Microbiology
Denitrification
72%
Surface Property
56%
Nitrification
54%
Ammonia Oxidizing Bacterium
53%
Nitrogen Cycle
37%
Microorganism
34%
Nitrite Oxidizing Bacterium
32%
Polymerase Chain Reaction
27%
Ammonia Oxidizing Archaeon
27%
Ammonia Oxidizer
23%
Phytoplankton
21%
Denitrifying Bacterium
21%
Proteobacteria
17%
Phylogeny
16%
Immunofluorescence
15%
Microbial Mat
13%
Dynamics
13%
DNA Microarray
13%
Biogeochemistry
13%
Oxygen Concentration
13%
Archaeon
13%
Nitrogen Fixation
13%
Anammox Bacterium
11%
Salinity
11%
Nitrifying Bacteria
10%
Real-Time Polymerase Chain Reaction
10%
Substrate Concentration
10%
Pseudomonas stutzeri
9%
Light Intensity
9%
Nitrogen Cycling
9%
Nitrosomonas
8%
Restriction Fragment Length Polymorphism
7%
Aerobe
7%
Prochlorococcus
7%
Natural Population
7%
Biogeochemical Cycling
7%
Gene Dosage
7%
Gene Expression
6%
RNA Gene
6%
Mineralization
6%
Prokaryote
6%
Gene Probe
6%
Nitrosospira
6%
Nitrite Oxidizer
6%
Deoxygenation
6%
Nitrogen Uptake
6%
Nitrosomonas europaea
6%
Bacterial Population
5%
Polyclonal Antiserum
5%
Cell Count
5%
Sequence Homology
5%
DNA RNA Hybridization
5%
Nucleic Acid Hybridization
5%
Microbiology
5%
DNA Probe
5%
Gene
5%
Nitrogen Utilization
5%
Bacterium Transformation
5%
Population Structure
5%
Stoichiometry
5%
Epiphyte
5%
Seagrass
5%
Pyrosequencing
5%
Ammonification
5%
Anaerobe
5%
Experimentation
5%
Diazotroph
5%
Physical Phenomena
5%
Plasmid
5%
Cell Activity
5%
Antiserum
5%
Applied Microbiology
5%
Environmental Microbiology
5%
Bioremediation
5%
Otolith
5%
Metagenome
5%
Nitrogen Metabolism
5%
Acclimatization
5%
Gammaproteobacteria
5%
Keyphrases
Nitrogen Cycle
22%
Ammonia Oxidation
17%
Arabian Sea
15%
Ammonia-oxidizing Archaea
15%
Fixed Nitrogen
14%
Nitrification
14%
Anaerobic Ammonium Oxidation (ANAMMOX)
13%
Marine Environment
13%
N2O Production
12%
Ammonium Oxidizing Bacteria
11%
Nitrogen Budget
11%
Aquatic Samples
10%
Eastern Tropical North Pacific
10%
Long-term Fertilization
10%
Nitrosococcus Oceani
10%
Marine Systems
10%
N2O Consumption
10%
Nitrogen Release
10%
Nitrogen Uptake
10%
Nitrogen Loss
10%
Nitrous Oxide Production
10%
Global Nitrogen Cycle
10%
Nitrous Oxide
10%
Ammonium
9%
Oxygen Minimum Zone
9%
Oxygen Deficient Zone
9%
Microbial Community Response
7%
Ammonia Oxidizers
7%
Autotrophic
7%
Low Oxygen
7%
Nitrification Rate
6%
Ammonia-oxidizing Bacteria and Archaea
6%
Denitrifying Community
6%
Arabian Sea Oxygen Minimum Zone
6%
Prokaryotes
6%
Autoradiography
6%
Global Ocean
6%
NifH Gene
6%
Diazotrophs
6%
Water Column
6%
Salt Marsh Sediment
6%
N2O Formation
6%
Surface Water
6%
NifH
6%
Substrate Oxidation
5%
North Atlantic Spring Bloom
5%
Functional Gene Analysis
5%
Organic Matter
5%
Nitrogen Dynamics
5%
CH3F
5%
Methyl Fluoride
5%
Anthropogenic Nitrogen
5%
Microbial Taxa
5%
Bay Sediment
5%
Ocean Observing
5%
Selective Inhibition
5%
Proteobacteria
5%
Specific PCR
5%
Nitrifier
5%
Ammonia-oxidizing Bacteria
5%
PCR Amplification
5%
RNA-DNA Ratio
5%
Nucleic Acid Hybridization
5%
Denitrifying Bacterial Community
5%
Fluorometry
5%
Natural Populations
5%
Phylogenetic Diversity
5%
Community Composition Change
5%
Distribution Quantification
5%
NirK
5%
Relative Quantification
5%
Oxygen Deficiency
5%
NosZ
5%
Peruvian
5%
Catechol 2,3-dioxygenase
5%
Intertidal Sediments
5%
Nitrospina
5%
Ocean Deoxygenation
5%
Ammonium Assimilation
5%
Dioxygenase Gene
5%
Water Anomalies
5%
Cold Water
5%
Washington Coast
5%
Assimilation Rate
5%
Ammonium Oxidizers
5%
Light Concentration
5%
Sargasso Sea
5%
Marine Green Algae
5%
Small Eukaryotes
5%
Grant-free Access
5%
Shallow Estuary
5%
Gene Type
5%
Growth Rate Method
5%
Photic Zone
5%
Gene Diversity
5%
Biological Nitrogen Fixation
5%
Tropical North Pacific Ocean
5%
Sediment Microbial Community
5%
Organic Nitrogen Cycling
5%
2,4-Dichlorophenoxyacetic Acid
5%
