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Faecalibacterium
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<p><i>Faecalibacterium</i> is a genus of bacteria. The genus contains several species including <i>Faecalibacterium prausnitzii</i>, <i>Faecalibacterium butyricigenerans</i>, <i>Faecalibacterium longum</i>, <i>Faecalibacterium duncaniae</i>, <i>Faecalibacterium hattorii</i>, and <i>Faecalibacterium gallinarum</i>. Its first known species, <i>Faecalibacterium prausnitzii</i> (renamed as Faecalibacterium <i>duncaniae</i>) is gram-positive, mesophilic, rod-shaped, and anaerobic, and is one of the most abundant and important <a href="/facts/Commensal_bacteria/KnJkboX0">commensal bacteria</a> of the human <a href="/facts/Gut_flora/Xy1IWzSP">gut microbiota</a>. It is non-spore forming and non-motile. These bacteria produce <a href="/facts/Butyric_acid/Sy5NrhK5">butyrate</a> and other <a href="/facts/Short-chain_fatty_acids/bgj2XGRf">short-chain fatty acids</a> through the fermentation of <a href="/facts/Dietary_fiber/Q9DXanDv">dietary fiber</a>. The production of <a href="/facts/Butyrate/Sy5NrhK5">butyrate</a> makes them an important member of the gut microbiota, fighting against <a href="/facts/Inflammation_of_intestine/b2aRA6MD">inflammation</a>. </p>