Earth and Planetary Sciences
Nitrous Oxide
100%
Nitrification
78%
Denitrification
76%
Nitrous Oxide
69%
Nitrite
61%
Phytoplankton
41%
Chesapeake Bay
41%
Nitrous Oxide Production
36%
Nitrogen Cycle
35%
Water Column
33%
South Pacific
31%
North Pacific
27%
Community Composition
26%
Organic Matter
25%
Coastal Water
21%
Salt Marsh
20%
Arabian Sea
20%
Methane
20%
Phylogenetics
18%
Marine Environment
17%
Salinity
16%
Mesocosm
16%
Denitrifiers
15%
Nitrogen Dioxide
15%
Sargasso Sea
15%
Peru
15%
Southern Ocean
15%
Oxidizer
13%
Surface Water
13%
Microbial Community
13%
Atmospherics
13%
Estuarine Sediment
13%
Amino Acid
12%
Euphotic Zone
12%
Photic Zone
12%
Organic Carbon
12%
North Atlantic
12%
Planetary Atmosphere
12%
Mixed Layer
11%
Nitrifying Bacterium
11%
Ocean Surface
11%
Southern California
10%
Nitrate Reduction
9%
Diatom
9%
Open Ocean
9%
Nitrous Oxide Reductase Gene
9%
Greenhouse Gas
9%
Pacific Ocean
8%
Emissions
8%
Global Ocean
8%
California
7%
Terrestrial Environment
7%
Environmental Gradient
7%
Antarctic Region
7%
Nitrogen 15
7%
Phytoplankton Bloom
7%
English Channel
7%
Carbon Dioxide
6%
Nearshore Water
6%
Climate Change
6%
Anoxic Sediment
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
5%
Ecosystem Function
5%
Generation Time
5%
Surface Layer
5%
Stoichiometry
5%
Denitrification
5%
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%
Immunology and Microbiology
Denitrification
69%
Surface Property
53%
Nitrification
51%
Ammonia Oxidizing Bacterium
50%
Nitrogen Cycle
36%
Nitrite Oxidizing Bacterium
35%
Microorganism
32%
Polymerase Chain Reaction
26%
Ammonia Oxidizing Archaeon
26%
Ammonia Oxidizer
22%
Phytoplankton
20%
Denitrifying Bacterium
20%
Proteobacteria
16%
Phylogeny
16%
Immunofluorescence
15%
Microbial Mat
12%
Dynamics
12%
DNA Microarray
12%
Biogeochemistry
12%
Oxygen Concentration
12%
Archaeon
12%
Nitrogen Fixation
12%
Anammox Bacterium
11%
Salinity
11%
Nitrite Oxidizer
10%
Nitrifying Bacteria
10%
Real-Time Polymerase Chain Reaction
10%
Nitrogen Cycling
9%
Substrate Concentration
9%
Pseudomonas stutzeri
9%
Light Intensity
8%
Nitrosomonas
8%
Restriction Fragment Length Polymorphism
7%
Aerobe
7%
Prochlorococcus
6%
Natural Population
6%
Biogeochemical Cycling
6%
Gene Dosage
6%
Gene Expression
6%
RNA Gene
6%
Mineralization
6%
Prokaryote
6%
Gene Probe
6%
Nitrosospira
5%
Deoxygenation
5%
Nitrogen Uptake
5%
Nitrosomonas europaea
5%
Bacterial Population
5%
Population Structure
5%
Metagenome
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%
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%
Nitrogen Metabolism
5%
Acclimatization
5%
Gammaproteobacteria
5%
Cladistics
5%
Keyphrases
Nitrogen Cycle
21%
N2O Production
16%
Ammonia Oxidation
16%
Arabian Sea
15%
Ammonia-oxidizing Archaea
15%
Nitrification
14%
Fixed Nitrogen
14%
Anaerobic Ammonium Oxidation (ANAMMOX)
13%
Marine Environment
12%
Ammonium Oxidizing Bacteria
11%
Nitrogen Budget
10%
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
9%
Ammonium
9%
Oxygen Minimum Zone
8%
Oxygen Deficient Zone
8%
Microbial Community Response
7%
Estuary
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
5%
Diazotrophs
5%
Water Column
5%
Salt Marsh Sediment
5%
Denitrification
5%
N2O Formation
5%
Surface Water
5%
NifH
5%
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%
