
Fig. 10. Effects of stimulants on secretion rates of Tenebrio molitor larval (filled columns) and adult (open columns) Malpighian tubules. Tubules were stimulated with 100 nmol l1 Tenmo-DH37 (DH37) and 1 mmol l1 cyclic AMP. Data are presented as means + 1 S.E.M. (N=910). C, control rates.