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Indole-3-Acetic Acid (IAA, 3-IAA)

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Who are potent Indole-3-Acetic Acid (IAA, 3-IAA) producers?

Five Bacteroidetes strains (Bacteroides thetaiotaomicron, Bacteroides eggerthii, Bacteroides ovatus, Bacteroides fragilis, Parabacteroides distasonis) and two Firmicutes strains (Eubacterium hallii and Clostridium bartlettii) produced indole-3-acetic…

References (Sources)

Catabolic pathway for the production of skatole and indoleacetic acid by the acetogen Clostridium drakei, Clostridium scatologenes, and swine manure
Whitehead et al. 2008 Appl. Environ. Microbiol. 74: 1950-1953
Exploring the Relationship between Gut Microbiome Composition and Blood Indole-3-acetic Acid in Hemodialysis Patients
Wu et al. 2024 Biomedicines 12(1): 148
Gut microbiome alterations in high-fat-diet-fed mice are associated with antibiotic tolerance
Liu et al. 2021 Nat Microbiol 6: 874-884
Major phenylpropanoid-derived metabolites in the human gut can arise from microbial fermentation of protein
Russell et al. 2013 Mol. Nutr. Food Res. 57: 523-535

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8/24/2026

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Indole-3-acetic acid - Wikipedia