Bacteroidota

Bacteroidota is a bacterial phylum containing diverse Gram-negative lineages found in animal guts, soils, and aquatic environments. Many members specialize in degrading complex organic matter.

Bacteroides: A genus of anaerobic bacteria common in the gastrointestinal tracts of animals. This prominent gut-associated genus represents a major branch of Bacteroidota.
Human gut microbiota: The community of microorganisms living in the human gastrointestinal tract. Bacteroidota is one of its abundant bacterial phyla.
Glycoside hydrolase: An enzyme that cleaves glycosidic bonds in carbohydrates and related molecules. Bacteroidota deploy diverse glycoside hydrolases to dismantle complex glycans.
Bacillota: A bacterial phylum that includes many Firmicutes, such as Clostridia and Bacilli. It is another abundant gut phylum with lineages that differ in cell structure and metabolism.
Prevotella: A genus of bacteria found in human and animal microbiomes and other environments. Its species form another familiar, diverse lineage within the phylum.
Polysaccharide utilization locus: A cluster of genes that enables bacteria to detect and degrade particular complex carbohydrates. Bacteroides use these gene clusters to process diverse dietary and host glycans.
SusC/SusD proteins: A pair of outer-membrane proteins that bind and transport oligosaccharides in Bacteroidetes. These proteins form a characteristic uptake system in many carbohydrate-utilizing gut strains.
Pseudomonadota: A large bacterial phylum containing diverse Gram-negative groups, including Proteobacteria. It shares the Gram-negative classification but encompasses many distinct lineages and lifestyles.
Flavobacteriia: A class of Bacteroidota containing many aquatic and soil bacteria. This class shows that the phylum extends well beyond gut-associated genera.
Dietary fiber: Carbohydrate components of food that resist digestion by human enzymes. Gut Bacteroidota break down fibers that the host cannot digest directly.

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FibrobacterotaCompared with: It includes gut bacteria that also degrade complex plant carbohydrates but belongs to a separate phylum.