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Related Concept Videos

Bacterial Flora of the Large Intestine01:29

Bacterial Flora of the Large Intestine

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The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
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Microbial Classification System01:24

Microbial Classification System

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Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...
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A functional microbiome catalog crowdsourced from North American rivers.

Mikayla A Borton, Bridget B McGivern, Kathryn R Willi

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    |July 28, 2023
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    A community science effort created the Genome Resolved Open Watersheds database (GROWdb), profiling thousands of microbial genomes across U.S. rivers. This resource reveals drivers of river microbiome structure and function, enabling predictive watershed modeling.

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    Area of Science:

    • Environmental microbiology
    • Riverine biogeochemistry
    • Metagenomics and bioinformatics

    Background:

    • Understanding river microbiomes is crucial for predicting elemental cycles and water quality under anthropogenic stress.
    • Current knowledge is limited by a lack of genome-resolved functional data and broad geographic sampling.

    Conclusions:

    • River microbiome structure and function are predictable, extending the River Continuum Concept with microbial functional traits.
    • GROWdb provides a foundational resource for interdisciplinary research in watershed science.
    • The database supports the development of microbiome-based management practices for improved water quality.