Microbial Biomass Carbon
Microbial Biomass Carbon - Related Videos
14:38
Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential
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Cited by 5 •
2012
Microbial eukaryotes are both a source of photosynthetically-derived carbon and top predatory species in permanently ice-covered Antarctic lakes. This report describes an enrichment culture approach to isolate metabolically versatile microbial eukaryotes from the Antarctic lake, Lake Bonney, and assesses inorganic carbon fixation potential using a radioisotope assay for Ribulose-1,5-bisphophate carboxylase oxygenase (RubisCO) activity.
02:01
Preparation of Cyanobacterial Culture for Biomass Production
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2025
Source: Jiang, H., Ho, M. Isolation and Characterization of Intact Phycobilisome in Cyanobacteria. J. Vis. Exp.(2021).This video demonstrates the procedure for culturing cyanobacteria to obtain biomass by growing cells under continuous illumination with carbon dioxide supply and nutrient-rich conditions, followed by harvesting via centrifugation.
03:27
Insoluble Chromogenic Biomass-Based Enzyme Screening: An Assay to Evaluate the Degradation Activity of Plant Biomass-Degrading Enzymes
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2025
This video demonstrates an assay to screen enzymes effective in degrading complex polysaccharides in plant biomass using insoluble chromogenic biomass or ICB. The enzymes hydrolyze ICB to release soluble dye-linked oligosaccharides, and the enzyme activity is assessed by colorimetric analysis of the reaction product.
10:42
Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
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Cited by 65 •
2016
The pretreatment of lignocellulosic biomass with protic low-cost ionic liquids is shown, resulting in a delignified cellulose-rich pulp and a purified lignin. The pulp gives rise to high glucose yields after enzymatic saccharification.
07:30
Fast Pyrolysis of Biomass Residues in a Twin-screw Mixing Reactor
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Cited by 20 •
2016
A procedure for thermochemical conversion of biomass residues is presented that aims at maximizing the yield of liquid products (fast pyrolysis). It is based on a technology proven on an industrial scale and especially suitable for treating a straw type of biomass.
FAQs
Microorganisms take up carbon from organic matter and compounds released by roots, directing it toward growth, cellular maintenance, decomposition, and energy production. Microbial activity therefore connects available organic inputs with later carbon outcomes. When cells die, their carbon becomes organic residue, while respiration transfers some carbon back to the surrounding environment as carbon dioxide.
Its active status reflects the continual exchange between living microbial cells and their surroundings. Carbon enters microorganisms through organic substrates and root-derived compounds, supports cellular processes, and leaves through cell death, residue formation, or respiration. This responsiveness makes microbial biomass carbon useful for examining how quickly environmental carbon pools may change.
The amount of microbial biomass carbon can respond to the availability of organic matter and root-derived compounds, as well as broader conditions associated with climate and land use. These influences alter the resources and environmental context supporting microbial growth, decomposition, and energy production. Comparing systems under different conditions can therefore reveal changes in carbon cycling activity.
Microbial biomass carbon provides an indicator of the living biological activity associated with organic matter processing. Because microorganisms use carbon while decomposing materials and cycling nutrients, its measurement can help evaluate soil fertility and the pace of organic matter turnover. It does not describe the entire carbon pool, but highlights the biologically active portion relevant to soil function.
Measurements can help characterize the biological component of carbon cycling in soil, sediments, and related systems. Interpreted alongside information about organic matter turnover and nutrient cycling, they can indicate how actively microorganisms are processing carbon. This makes the measure useful for assessing soil health and examining responses to environmental change, rather than treating carbon as a single uniform pool.
It is useful when researchers need to compare how environmental conditions affect living microbial carbon and associated carbon cycling processes. Differences observed across land-use settings or climate conditions can help identify changes in microbial activity, organic matter turnover, and nutrient cycling. The measure therefore supports ecosystem assessments that connect biological responses with broader environmental change.
Microbial biomass carbon links living microbial processes with the transformation of organic carbon in environmental systems. Monitoring this active pool can add biological context to studies of carbon storage and help evaluate soil health. In sustainable environmental management, the information can contribute to assessing whether management conditions support continued nutrient cycling and effective organic matter processing.