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Cellulolytic bacteria in the large intestine of mammals

Abstract : The utilization of dietary cellulose by resident bacteria in the large intestine of mammals, both herbivores and omnivores (including humans), has been a subject of interest since the nineteenth century. Cellulolytic bacteria are key participants in this breakdown process of cellulose, which is otherwise indigestible by the host. They critically contribute to host nutrition and health through the production of short-chain fatty acids, in addition to maintaining the balance of intestinal microbiota. Despite this key role, cellulolytic bacteria have not been well studied. In this review, we first retrace the history of the discovery of cellulolytic bacteria in the large intestine. We then focus on the current knowledge of cellulolytic bacteria isolated from the large intestine of various animal species and humans and discuss the methods used for isolating these bacteria. Moreover, we summarize the enzymes and the mechanisms involved in cellulose degradation. Finally, we present the contribution of these bacteria to the host.
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Submitted on : Thursday, March 10, 2022 - 8:24:40 AM
Last modification on : Saturday, May 21, 2022 - 3:47:58 AM

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Alicia Froidurot, Véronique Julliand. Cellulolytic bacteria in the large intestine of mammals. Gut microbes, Taylor & Francis, 2022, 14 (1), pp.2031694. ⟨10.1080/19490976.2022.2031694⟩. ⟨hal-03603630⟩

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