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Soil microbial communities are characterized in many different ways. The activity of microbes can be measured by their respiration and carbon dioxide release. The cellular components of microbes can be extracted from soil and genetically profiled, or microbial biomass can be calculated by weighing the soil before and after fumigation.
The microbial loop describes a pathway in the microbial food web where DOC is returned to higher trophic levels via the incorporation into bacterial biomass. This loop makes sure that the DOC created by photosynthetic organisms is used by heterotrophic bacteria and then moves up the food chain, which is crucial for sustaining the flow of ...
Biomass is the mass of living biological organisms in a given area or ecosystem at a given time. Biomass can refer to species biomass, which is the mass of one or more species, or to community biomass, which is the mass of all species in the community.
The aquatic microbial loop is a marine trophic pathway which incorporates dissolved organic carbon into the food chain.. The microbial loop describes a trophic pathway where, in aquatic systems, dissolved organic carbon (DOC) is returned to higher trophic levels via its incorporation into bacterial biomass, and then coupled with the classic food chain formed by phytoplankton-zooplankton-nekton.
Single-cell proteins (SCP) or microbial proteins [1] refer to edible unicellular microorganisms. The biomass or protein extract from pure or mixed cultures of algae , yeasts , fungi or bacteria may be used as an ingredient or a substitute for protein-rich foods, and is suitable for human consumption or as animal feeds.
As a consequence of the quantitative magnitude of microbial life (calculated as 5.0 × 10 30 cells; eight orders of magnitude greater than the number of stars in the observable universe [11] [12]), microbes, by virtue of their biomass alone, constitute a significant carbon sink. [13]
Biomass is a term used in several contexts: in the context of ecology it means living organisms, [1] and in the context of bioenergy it means matter from recently living (but now dead) organisms. In the latter context, there are variations in how biomass is defined, e.g., only from plants, [ 2 ] from plants and algae, [ 3 ] from plants and ...
Microbes interact with one another, and these symbiotic interactions have diverse consequences for microbial fitness, population dynamics, and functional capacities within the microbiome. [82] The microbial interactions can either be between microorganisms of the same species or between different species, genera, families, and domains of life.
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