Figure 2. Fertilization in C. elegans is modulated by spermidine. (A) Total number of fertilized eggs laid by wild-type and spermidine synthase (SPDS-1)-deficient worms, fed with or without 50 µM spermidine-supplemented food. Data represent mean ± S.E.M. (n = 5; **p < 0.01, ***p < 0.001). (B) Total number of fertilized eggs laid by wild-type and bec-1-deficient worms. Data represent mean ±S.E.M. (n = 5).