Figure 3: The intestine is a major site of action of wwp-1 and klf-1 to regulate the dietary restriction response.

(a) Lifespan analysis of eat-2(ad1116);sid-1(qt9) mutant worms fed bacteria expressing dsRNA to klf-1 or control vector. (b,c) Lifespan analysis of eat-2(ad1116);sid-1(qt9) worms with restored SID-1 expression in the intestines (b) or muscle tissues (c). Worms were fed bacteria expressing dsRNA to klf-1, wwp-1 or control vector.