Title |
Delayed accumulation of intestinal coliform bacteria enhances life span and stress resistance in Caenorhabditis elegans fed respiratory deficient E. coli
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Published in |
BMC Microbiology, December 2012
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DOI | 10.1186/1471-2180-12-300 |
Pubmed ID | |
Authors |
Fernando Gomez, Gabriela C Monsalve, Vincent Tse, Ryoichi Saiki, Emily Weng, Laura Lee, Chandra Srinivasan, Alison R Frand, Catherine F Clarke |
Abstract |
Studies with the nematode model Caenorhabditis elegans have identified conserved biochemical pathways that act to modulate life span. Life span can also be influenced by the composition of the intestinal microbiome, and C. elegans life span can be dramatically influenced by its diet of Escherichia coli. Although C. elegans is typically fed the standard OP50 strain of E. coli, nematodes fed E. coli strains rendered respiratory deficient, either due to a lack coenzyme Q or the absence of ATP synthase, show significant life span extension. Here we explore the mechanisms accounting for the enhanced nematode life span in response to these diets. |
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