this system was chosen because of the previous investigations [ dion , a.s. & herbst , e.j . ( 1967 ) proc . natl . acad . sci . u.s.a. 58 , 2367-2371 ; herbst , e.j . & dion , a.s. ( 1970 ) fed . proc . fed . am . soc . exp . biol . 29 , 1563-1567 ] relating putrescine and spermidine to growth and development of drosophila .
C0034170
putrescine
C0037871
growth