The symbiotic relationship between Caenorhabditis elegans and members of its microbiome contributes to worm fitness and lifespan extension

Table 1 Lifespan of the worms grown with different native bacterial isolates

Bacteria isolate	Number of live worms per replicate	Number of dead worms per replicate	Median survival (days)	Maximum survival (days)	Median lifespan (P value)	Maximum lifespan (P value)
Escherichia coli OP50	20	20	10	16	–	–
Chryseobacterium sp. CHNTR56 MYb120	20	20	10.5	20	0.3201	0.0122
Comamonas sp. 12022 MYb131	20	20	11	16	0.8128	0.5634
Combination	20	20	14	22.5	< 0.0001	< 0.0001

Lifespan values and related statistics for the worms grown with the native bacterial isolates of interest and E. coli OP50 are shown. Maximum lifespan of the worms grown with Chryseobacterium sp. CHNTR56 MYb120 alone and median and maximum lifespans of the worms grown with the combination of both native bacterial isolates were increased, compared to the worms grown E. coli OP50 (P = 0.0122 and P < 0.0001, respectively). No worms were censored

ISSN: 1471-2164