Soil Microorganisms
Soil Microorganisms - Related Videos
10:04
Visualizing Soil Microorganisms via the Contact Slide Assay and Microscopy
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2023
Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - The University of Arizona Demonstrating Author: Bradley Schmitz Soil comprises the thin layer at the earth’s surface, containing biotic and abiotic factors that contribute to life. The abiotic portion includes inorganic particles ranging in size and shape that determine the soil’s texture. The biotic portion incorporates plant residues, roots, organic matter, and microorganisms. Soil microbe abundance and diversity is expansive, as...
13:38
Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
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Cited by 25 •
2013
Plastic films labeled "biodegradable" are commercially available for agricultural use as mulches. Tillage represents an attractive disposal method, but degradation under field conditions is poorly understood. The purpose of this study was to develop methods for isolating native soil fungi and bacteria that colonize plastic mulch films after field burial.
05:33
Isolation of Soil Microorganisms Using iChip Technology
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Cited by 2 •
2025
The iChip technique makes use of an inexpensive and simple in-situ isolation device that increases the rates of novel microorganism discovery from the soil. Novel microorganisms can be used for further study pertaining to the soil microbiome or natural product discovery, amongst other applications.
09:57
Quantifying Environmental Microorganisms and Viruses Using qPCR
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2023
Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - The University of Arizona Demonstrating Author: Bradley Schmitz Quantitative polymerase chain reaction (qPCR), also known as real-time PCR, is a widely-used molecular technique for enumerating microorganisms in the environment. Prior to this approach, quantifying microorganisms was limited largely to classical culture-based techniques. However, the culturing of microbes from environmental samples can be particularly challenging, and...
08:16
Inoculation Strategies to Infect Plant Roots with Soil-Borne Microorganisms
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Cited by 2 •
2022
This protocol presents a detailed summary of strategies to inoculate plant roots with soil-borne microbes. Exemplified for the fungi Verticillium longisporum and Verticillium dahliae, three different root infection systems are described. Potential applications and possible downstream analyses are highlighted, and advantages or disadvantages are discussed for each system.
FAQs
They secrete enzymes that chemically decompose organic matter into simpler substances. This activity makes elements such as carbon and nitrogen available for recycling within the soil ecosystem. The resulting nutrient transformations influence soil fertility and ecosystem productivity, linking microscopic biological activity with conditions that support plant growth and broader biological processes.
Microbial activity contributes to the formation and maintenance of soil structure while nutrient recycling supports fertility. These effects arise from the combined activity of bacteria, fungi, archaea, and protozoa rather than from a single organism. Changes in community composition or activity can therefore affect how effectively soil supports plants and ecosystem productivity.
Some soil microorganisms form symbiotic relationships with plant roots, creating biological interactions that can influence nutrient uptake and plant growth. These associations connect microbial processes directly with plant biology and help explain why soil microbial communities matter in agricultural and natural ecosystems. Their effects are relevant to understanding plant health as well as soil fertility.
Studying Soil Microorganisms helps researchers examine nutrient cycling, plant health, carbon storage, and the functioning of soil ecosystems. In biology, this work connects microbial communities with plants and ecosystem productivity. In environmental research, it supports monitoring how soil systems respond to climate and land-use changes, revealing biological effects that may not be visible from soil properties alone.
Their roles in nutrient recycling, plant-root symbioses, and soil fertility make them relevant to agricultural research focused on plant growth and health. The same biological activity supports bioremediation research, where soil microorganisms are considered in efforts to address environmental problems. These applications arise from their ability to drive essential processes within soil ecosystems.
Changes in soil microbial communities can provide information about how soil ecosystems respond to climate and land-use changes. Because these communities participate in carbon and nitrogen cycling, interact with roots, and influence soil structure, shifts in their activity may reflect broader changes in ecosystem function, fertility, carbon storage, and productivity.