Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Overview of Nitrogen Metabolism01:20

Overview of Nitrogen Metabolism

12.4K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of  ammonia, ammonium ions, nitrate, nitrite, or  nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
12.4K
Inorganic Nitrogen Assimilation01:22

Inorganic Nitrogen Assimilation

746
Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
746
Metabolism of Chemolithotrophs01:15

Metabolism of Chemolithotrophs

1.1K
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.
1.1K
Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

1.3K
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
1.3K
The Nitrogen Cycle01:49

The Nitrogen Cycle

61.2K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
61.2K
Bioremediation00:46

Bioremediation

22.7K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
22.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Gut commensal Bacteroides-derived pantothenic acid alleviates metabolic syndrome.

Cell host & microbe·2026
Same author

Microelectrode Arrays Technology for Brain-on-a-Chip Applications.

Biosensors·2026
Same author

Bulk nanobubbles do not spontaneously generate radicals but function as field-assisted energy-reducing catalysts.

Water research·2026
Same author

Single antiplatelet therapy vs oral anticoagulation monotherapy in patients with atrial fibrillation and coronary artery disease after successful catheter ablation: A target trial emulation.

Heart rhythm·2026
Same author

Association of left ventricular geometry with outcomes and treatment response in atrial fibrillation and heart failure with preserved ejection fraction.

Frontiers in medicine·2026
Same author

Operational threshold and associated mechanisms in composting remediation of diesel-contaminated soils.

Journal of environmental management·2026

Related Experiment Video

Updated: Mar 14, 2026

Biocontained Carcass Composting for Control of Infectious Disease Outbreak in Livestock
14:34

Biocontained Carcass Composting for Control of Infectious Disease Outbreak in Livestock

Published on: May 6, 2010

11.4K

A regulating method for reducing nitrogen loss based on enriched ammonia-oxidizing bacteria during composting.

Yun Zhang1, Yue Zhao1, Yanni Chen1

  • 1College of Life Science, Northeast Agricultural University, Harbin 150030, China.

Bioresource Technology
|September 20, 2016
PubMed
Summary

Enriched ammonia-oxidizing bacteria (AOB) reduce nitrogen loss during co-composting of rice straw and chicken manure. Inoculation with AOB enhances bacterial communities and improves composting efficiency for resource recycling.

Keywords:
Bacterial diversityCompostingEnriched AOBNitrogen lossRedundancy analysis

More Related Videos

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
10:29

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers

Published on: March 21, 2016

12.9K
A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
08:13

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

Published on: December 25, 2015

17.9K

Related Experiment Videos

Last Updated: Mar 14, 2026

Biocontained Carcass Composting for Control of Infectious Disease Outbreak in Livestock
14:34

Biocontained Carcass Composting for Control of Infectious Disease Outbreak in Livestock

Published on: May 6, 2010

11.4K
Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
10:29

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers

Published on: March 21, 2016

12.9K
A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
08:13

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

Published on: December 25, 2015

17.9K

Area of Science:

  • Microbiology
  • Environmental Science
  • Agricultural Science

Background:

  • Composting is crucial for recycling agricultural waste like rice straw and chicken manure.
  • Nitrogen loss during composting reduces fertilizer value and impacts the environment.
  • Ammonia-oxidizing bacteria (AOB) play a key role in nitrogen cycling during composting.

Purpose of the Study:

  • To investigate the effect of inoculating enriched ammonia-oxidizing bacteria (AOB) on nitrogen loss during the co-composting of rice straw and chicken manure.
  • To analyze the succession of the bacterial community structure following AOB inoculation.
  • To explore the correlation between key bacterial populations and environmental factors in the composting process.

Main Methods:

  • Domesticated cultivation of enriched AOB.
  • Inoculation of AOB into co-composting mixtures of rice straw and chicken manure.
  • Analysis of nitrogen loss (ammonia emission) and bacterial community succession.
  • Redundancy analysis to correlate bacterial populations with environmental factors (nitrite, ammonium).

Main Results:

  • AOB inoculation significantly reduced ammonia emission and overall nitrogen loss.
  • Inoculation led to an increased abundance and diversity of the bacterial community.
  • Indigenous and exogenous bacteria in the inoculated group showed a positive correlation with nitrite and a negative correlation with ammonium.
  • These bacterial shifts were directly linked to reduced nitrogen loss.

Conclusions:

  • Enriched AOB inoculation is an effective strategy to mitigate nitrogen loss in co-composting.
  • AOB application enhances bacterial community development, contributing to improved composting efficiency.
  • This method offers a promising approach for resource recycling and advancing composting technology.