Bacteroidaceae is a family of obligate anaerobic, Gram-negative bacteria in the order bacteroidales. The dominant genus is bacteroides, which includes B. fragilis, B. vulgatus, B. thetaiotaomicron, and B. uniformis. Bacteroidaceae are among the most abundant gut bacteria, specializing in complex polysaccharide degradation and bile acid metabolism.
Key Roles
- Polysaccharide degradation: Extensive PUL (polysaccharide utilization loci) systems for dietary fiber and host glycan breakdown.
- Bile acid metabolism: Bile salt hydrolases deconjugate primary bile acids.
- CRC: Altered Bacteroidaceae abundance in CRC-adenoma progression li 2023 combined gut bacteria fungi crc adenoma chinese cohort.
- Virome interactions: Bacteroidaceae-targeting phages modulate family abundance in metabolic syndrome dejonge 2022 gut virome bacteriophage metabolic syndrome fujimoto 2022 human gut virome metabolic autoimmune.
- Statin effects: Rosuvastatin alters Bacteroidaceae abundance liu 2018 gut microbiome rosuvastatin lipid lowering.
Cross-References
- bacteroides — dominant genus
- bacteroidales — order context
- bacteroidetes — phylum context